U.S. patent application number 13/909749 was filed with the patent office on 2013-12-19 for computer display screen system and adjustable screen mount, and swinging screens therefor.
The applicant listed for this patent is Jerry Moscovitch. Invention is credited to Jerry Moscovitch.
Application Number | 20130334376 13/909749 |
Document ID | / |
Family ID | 22351220 |
Filed Date | 2013-12-19 |
United States Patent
Application |
20130334376 |
Kind Code |
A1 |
Moscovitch; Jerry |
December 19, 2013 |
Computer Display Screen System and Adjustable Screen Mount, and
Swinging Screens Therefor
Abstract
A stand for supporting three computer displays is described
herein. The stand includes a base, a column connected to the base,
and three mounting assemblies coupled to the column for supporting
the three computer displays. If the first computer display has a
first flat screen lying on a first nominal plane, the second
computer display has a second flat screen lying on a second nominal
plane and the third computer display has a third screen lying on a
third nominal plane, then the mounting assemblies allow the three
computer displays to be configured so that the angle between the
first and second nominal planes is sixty degrees, the angle between
the first and third nominal planes is sixty degrees, and the angle
between the second and third nominal planes is sixty degrees.
Inventors: |
Moscovitch; Jerry; (toronto,
CA) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Moscovitch; Jerry |
toronto |
|
CA |
|
|
Family ID: |
22351220 |
Appl. No.: |
13/909749 |
Filed: |
June 4, 2013 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
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09869259 |
Nov 28, 2001 |
8462103 |
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PCT/US1999/030733 |
Dec 21, 1999 |
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13909749 |
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60113742 |
Dec 23, 1998 |
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Current U.S.
Class: |
248/125.1 |
Current CPC
Class: |
B60R 11/02 20130101;
F16M 13/02 20130101; G06F 1/1601 20130101; B60R 11/04 20130101;
B60R 2011/0071 20130101; B60R 2011/0082 20130101; G06F 1/1649
20130101; B60R 2011/0078 20130101; G06F 1/1616 20130101; B60R
2011/0005 20130101; F16M 11/00 20130101; G06F 2200/1612 20130101;
B60R 11/0235 20130101; G06F 1/1624 20130101; B60R 2011/0015
20130101; B60R 2011/0073 20130101; F16M 11/041 20130101; F16M 11/14
20130101; B60R 2011/0089 20130101; G06F 1/1605 20130101; G06F
2200/1614 20130101; G06F 1/1654 20130101; B60R 2011/005 20130101;
B60R 2011/0091 20130101; F16M 11/10 20130101; B60R 2011/0085
20130101 |
Class at
Publication: |
248/125.1 |
International
Class: |
F16M 11/00 20060101
F16M011/00 |
Claims
1) A stand for supporting a first computer display having a first
flat screen lying on a first nominal plane, a second computer
display having a second flat screen lying on a second nominal plane
and a third computer display having a third screen lying on a third
nominal plane, the stand comprising: a base; a column connected to
the base; three mounting assemblies coupled to the column for
supporting the three computer displays, wherein the mounting
assemblies allow the three computer displays to be configured so
that the angle between the first and second nominal planes is sixty
degrees, the angle between the first and third nominal planes is
sixty degrees, and the angle between the second and third nominal
planes is sixty degrees.
2) A tripod stand for supporting a first computer display having a
first flat screen lying on a first nominal plane, a second computer
display having a second flat screen lying on a second nominal plane
and a third computer display having a third screen lying on a third
nominal plane, the tripod stand comprising: a base having three
legs; a column connected to the base; three mounting assemblies
coupled to the column for supporting the three computer displays,
wherein the mounting assemblies allow the three computer displays
to be configured so that the angle between the first and second
nominal planes is sixty degrees, the angle between the first and
third nominal planes is sixty degrees, and the angle between the
second and third nominal planes is sixty degrees.
Description
FIELD OF THE INVENTION
[0001] The invention relates generally to electronic displays
having dual display screens used with computers and CAD design
equipment, and more particularly to various embodiments of an LCD
display system permitting positioning of two or more LCD display
screens in a variety of orientations.
BACKGROUND OF THE INVENTION
[0002] Computers are readily adapted to operate multiple displays.
Paired monitors and screens are useful when large amounts of
related information, such as data or graphics, must be compared.
Paired monitors can be inconvenient, however, where limited desk
space is available. Monitors may be horizontally aligned, or
vertically aligned. It is especially desirable to permit swinging
of the monitor orientations together into a "booking" mode.
[0003] The invention also relates to a novel swingable mounting,
which is suitable for mounting a variety of different pieces of
equipment and instruments particularly for example video cameras,
telescopes, mirrors, and any number of different articles, which it
may be desired to swing into a position from which the article is
not easily displaced.
[0004] The invention also relates to an interchangeable computer
display screen, in which one or more of a variety of screen
configurations can be connected or disconnected in various
configurations with a computer.
BRIEF SUMMARY OF THE INVENTION
[0005] In one aspect, the invention provides a display system
having two screens and comprising a base, a pair of electronic
displays mounted on the base and means for swingably mounting the
display screens, for swinging towards one another for convenient
viewing. The swinging means includes an arm assembly which supports
the display screens on the base. The support for the arm assembly
from the base may have an orientation relative to the base in which
the display screens are positioned in vertically stacked screen
relationship and may also have a different orientation in which the
display screens are positioned in a horizontal, side by side
relationship. Each display screen has a swingable joint connecting
it to the arm assembly to permit adjustment of its angular
orientation relative to the other screen. The angular orientation
of each of the display screens relative to the arm assembly can
thus be set by the user so as to orient each display screen in the
desired angular orientation for that operator.
[0006] In one implementation of the invention, the arm assembly can
be set in one position about a generally horizontal axis relative
to the base, and the display screens can be swung together relative
to the arm assembly. The arm assembly may be locked in either
orientations, typically vertical or horizontal. Each display screen
may be permitted to swing only between a pair of angular positions
relative to the arm assembly by controls in the swingable
joints.
[0007] The displays will often be horizontally arranged side by
side in their operative angular orientation. It will generally be
desirable to minimize the spacing between edges of the display
screens whether vertically registered or horizontally registered.
To that end, the center-to-center spacing between the display
screens is preferably reduced when the screens are swung
together.
[0008] The swingable mounting joints connecting the display screens
to the arm assembly are preferably formed in such a way that they
can be preconfigured either for a side by side orientation or for a
vertically stacked orientation of the screens, with means being
provided on the swingable joints to guide the assembly in one
fashion or the other, and the arm assembly is preferably provided
with connecting means connecting to the swingable joints, which
cooperate with the means guiding the assembly.
[0009] The swingable joints are preferably provided with control
abutments by means of which the swinging of the displays can be
guided and controlled both when in their horizontal side-by-side
arrangement and when in their vertically stacked arrangement, and
the position and angular displacement of the two screens can be
preset by adjustment of such positional controls during
assembly.
[0010] A further feature of the invention is the provision of a
unique form of spring-loaded pivot mount for mounting equipment,
such as the display screen. The pivot mount is capable of adjusting
the spring pressure on the pivot so that the article mounted on the
pivot mount, in this case a screen can be adjusted, when grasped
with both hands and moved, but which is otherwise highly resistant
to movement due to frictional locking of the pivot mount.
[0011] The pivot mount has numerous other uses, other than mounting
display screens as will be apparent from the following
description.
[0012] Further aspects of the invention provide for the
interchangeability of screens one with the other, so that larger or
smaller screens may be used with the same computer, and so that
screens may be used in various different positions.
[0013] In some cases the screens may simply be stood on a table. In
other cases the screens may be wall-mounted or mounted on some form
of base separate from the computer. In other cases the screens may
be interchangeably and releasably mountable for example in a
vehicle, and they may be configured in pairs so that they may be
portable and set up for a multi screen display, for example, for
viewing by a number of persons simultaneously.
[0014] The various features of novelty which characterize the
invention are pointed out with more particularity in the claims
annexed to and forming a part of this disclosure. For a better
understanding of the invention, its operating advantages and
specific objects attained by its use, reference should be made to
the accompanying drawings and descriptive matter in which there are
illustrated and described preferred embodiments of the
invention.
IN THE DRAWINGS
[0015] The various advantages of the present invention will become
apparent to one skilled in the art by reading the following
specification and subjoined claims and by referencing the following
drawings in which:
[0016] FIG. 1 is a perspective illustration of a dual display
screen system, showing swinging movement of the two screens towards
one another;
[0017] FIG. 2 is a side-elevation of FIG. 1;
[0018] FIG. 3 is a front-elevation of the dual display screens of
FIG. 1;
[0019] FIG. 4 is a top plan view of the dual display screens of
FIG. 1;
[0020] FIG. 5 is a perspective illustration of dual display screen
shown with the screens in vertical arrangement one above the
other;
[0021] FIG. 6 is a side-elevation of FIG. 5 showing the screens
tilted towards one another;
[0022] FIG. 7 is an exploded view of the pivot mount and ball joint
used in this embodiment of the invention;
[0023] FIG. 8 is a section along the line 8-8 of FIG. 7;
[0024] FIG. 9 is a section along the line 9-9 of FIG. 7;
[0025] FIG. 10 is an exploded perspective illustration of an arm
assembly, and showing cut away portions of the swingable
joints;
[0026] FIG. 11 is a section along the line 11-11 of FIG. 10,
showing the two components assembled;
[0027] FIG. 12 is a section along the line 12-12 of FIG. 10 showing
the two parts assembled;
[0028] FIG. 13 is a perspective partly exploded illustration
showing an alternative interchangeable mounting system for mounting
the screens;
[0029] FIG. 14 is an exploded rear perspective illustration of a
complementary portion of the mounting system, which is fitted to
the back of each screen;
[0030] FIG. 15 is an exploded perspective illustration showing the
interchangeable mounting system of the invention coupled with a
ball joint similar to that shown in FIG. 12, to enable a screen to
be mounted on a stand separately from the computer;
[0031] FIG. 16 is a rear elevation of the complementary portion of
the interchangeable mounting system mounted on the back of a
screen;
[0032] FIG. 17 is a section along the line 17-17 of FIG. 16;
[0033] FIG. 18 is a perspective illustration partly in phantom of a
modified form of stand for a computer screen;
[0034] FIG. 19 is a perspective illustration of a stand somewhat
similar to FIG. 18, with a collapsible stand arm nesting in a
base;
[0035] FIG. 19a is a perspective of the unit of FIG. 19 folded and
nested for storage or carrying;
[0036] FIG. 20 is a rear perspective illustration partly exploded
showing a modified form of computer together with a display
releasible mounted on an arm extending from the computer;
[0037] FIG. 21 is a front perspective illustration of a
wall-mounted form of interchangeable display screen together with a
control panel;
[0038] FIG. 22 is a schematic illustration showing an
interchangeable mounting of a display screen in a vehicle;
[0039] FIG. 23 is an illustration of another vehicle mounting of
the interchangeable displays screen, in the rear compartment of the
vehicle;
[0040] FIG. 24 is an illustration of a computer with a rear mounted
support arm, and a greatly enlarged display screen fitted to the
arm;
[0041] FIG. 25 is a perspective illustration of a table-mounted
screen;
[0042] FIG. 26 shows a computer having two screens mounted one
above the other, with a rotatable mount between the two
screens;
[0043] FIG. 27 is a view of the same computer as shown in FIG. 26
showing the two screens folded outwardly, so that the display can
be viewed by two persons sitting opposite one another;
[0044] FIG. 28 is an illustration of a portable dual display screen
with a hinging mount, the two screens being shown folded together
in a stored or carrying position;
[0045] FIG. 29 is a perspective illustration showing a plurality of
the display screens of FIG. 28 opened up so that they may stand on
the table and face in opposite directions, and coupled to a
computer;
[0046] FIG. 30 is a perspective illustration of an alternate form
of tripod display stand for holding three displays for example, on
a conference room table or the like;
[0047] FIG. 31 is a perspective illustration of the tripod support
of FIG. 30;
[0048] FIG. 32 is a rear perspective partially exploded view of
another form of dismountable display leg for a display screen;
[0049] FIG. 33 is a rear perspective illustration of a typical lap
top computer, having two display screens, the one being slidable
relative to the other for nesting, or extendable for use;
[0050] FIG. 34 is a perspective illustration of the lap top
computer with dual display screens of FIG. 33 showing the display
screens in another configuration;
[0051] FIG. 35 is a perspective illustration of another form of lap
top computer having two display screens, and showing a slidable
cover panel for one of the two display screens;
[0052] FIG. 36 is a rear perspective view of another form of
display screen, showing attachment recesses for various
components;
[0053] FIG. 37 is a perspective illustration of, for example, a lap
top computer showing two display screens such as that illustrated
in FIG. 36, being attachable to a hinge mounting on the
computer;
[0054] FIG. 38 is a front elevational view of a pair of display
screens as illustrated in FIG. 36 shown side by side;
[0055] FIG. 39 is a front elevational view corresponding to FIG.
38, but showing the two display screens one above the other;
[0056] FIG. 40 shows an illustration of a further embodiment of
invention with a computer having two display screens joined along
the side by a hinge;
[0057] FIG. 41 shows the computer of FIG. 40 with the two display
screens swung out side by side;
[0058] FIG. 42 shows the same computer with the two screens swung
back to back, so as to display in opposite directions;
[0059] FIG. 43 is a perspective view of a laptop computer system
incorporating a center LCD panel and a pair of half-width LCD
panels on each side thereof, wherein the half-width panels may be
folded over the center LCD panel and the entire display portion
then folded down onto the keyboard portion of the laptop to form a
compact assembly;
[0060] FIG. 43A is a perspective view of a laptop computer which
forms a multimedia center, and which incorporates a pair of
foldable speakers flanking a lower LCD screen, and an upper LCD
screen hingedly attached to the lower screen;
[0061] FIG. 44 is a side elevational view of a display system of
the present invention incorporating a telescoping and pivoting
upper support arm for positioning an upper LCD panel adjustably at
a desired height above a lower LCD panel or in an orientation
facing away from the lower LCD panel;
[0062] FIG. 45 is a side elevational view of the display system of
FIG. 44 showing the upper support arm in an extended position;
[0063] FIG. 46 is a side elevational view of the display system
with the upper LCD panel adjusted at an angle relative to the lower
LCD panel;
[0064] FIG. 47 is a side elevational view of the display system
with the upper LCD panel folded over backward relative to the lower
LCD panel;
[0065] FIG. 48 is a perspective view of the display system in use
at an airline ticket counter;
[0066] FIG. 49 is a perspective view of the display system in a
folded orientation for easy handling;
[0067] FIG. 50 is a perspective view of an alternative preferred
embodiment of a display system of the present invention
incorporating a rotating support member to enable a LCD panel to be
rotated about a vertical axis;
[0068] FIG. 51 is a perspective view illustrating an upper LCD
panel mounted for swiveling movement relative to a lower LCD panel
using the system shown in FIG. 50;
[0069] FIG. 52 is a perspective view of the display system shown in
FIG. 51 showing the two LCD panels facing in opposite
directions;
[0070] FIG. 53 is an exploded perspective view of a modular,
multi-panel LCD display system in accordance with another
alternative preferred embodiment of the present invention;
[0071] FIG. 54 is a perspective view of the display system shown in
FIG. 53 in assembled form ready to accept four LCD panels;
[0072] FIG. 55 is a front view of the display system of FIG. 54
with four LCD panels attached thereto;
[0073] FIG. 56 is a rear view of the display system of FIG. 55;
[0074] FIG. 57 is a perspective view of the display system of FIG.
55;
[0075] FIG. 58 is an exploded perspective view of the system shown
in FIG. 53 but without one of the support arms such that a three
LCD panel display system is formed;
[0076] FIG. 59 is an exploded perspective view of the display
system shown in FIG. 58 illustrating how a single LCD panel is
attached at an uppermost end of one of the support arms;
[0077] FIG. 60 is a front elevational view of three LCD panels
supported on the display system shown in FIG. 59;
[0078] FIG. 61 is a front elevational view of three LCD panels
being supported such that the single LCD panel is below an upper
pair of LCD panels;
[0079] FIG. 62 is a perspective view of a base assembly for
supporting three LCD panels in the configuration shown in FIG.
62;
[0080] FIG. 63 is a front elevational view of a four LCD panel
system with two of the panels disposed in portrait orientation and
two disposed in landscape orientation; and
[0081] FIG. 64 is a front elevational view of a three LCD panel
system with two LCD panels disposed in a landscape orientation and
one in a portrait orientation.
[0082] FIGS. 65-67 illustrate perspective views of a display
support system in accordance with one preferred embodiment of the
present invention;
[0083] FIGS. 68-70 illustrate the display support system of FIGS.
65-67 supporting a pair of LCD screens in various orientations;
[0084] FIGS. 71-74 illustrate perspective views of an alternative
preferred embodiment of the display support system of FIGS. 65-67,
which incorporates a screen centering device for centering a pair
of LCD screens on a support arm of the system;
[0085] FIG. 75 is a perspective view of the centering member of the
system of FIG. 71;
[0086] FIG. 76 is a front elevational view of the display support
system of FIGS. 71-74 supporting a pair of LCD screens of different
dimensions;
[0087] FIG. 77 is a partial plan view of the display screen support
system shown in FIG. 71 illustrating the limited degree of booking
available because of limited clearance between the edges of the LCD
screens and the support arm of the system;
[0088] FIG. 78 is a partial plan view of an alternative preferred
embodiment of a display screen support system which allows for an
increased degree of booking of two LCD screens by virtue of a
concavity formed in a support arm portion thereof;
[0089] FIGS. 79 and 80 are perspective views of the display support
system of FIG. 78 but with a base assembly incorporating extendable
foot portions to increase the effective footprint of the base
assembly;
[0090] FIG. 81 is a perspective view of the base assembly of FIGS.
79 and 80 but with an increased base panel portion to provide even
further stability to the base assembly;
[0091] FIG. 82 is a perspective view of a mechanism for enabling
smooth extending movement of each of the arm members of the display
support system shown in FIGS. 71-74;
[0092] FIG. 83 is a perspective view of an alternative preferred
mechanism for enabling smooth rolling movement of the support arms
within a common support member;
[0093] FIG. 84 is a perspective view of another alternative
preferred form of the arm member incorporating semi-circular
grooves and channels for smooth sliding movement of the arm
members;
[0094] FIG. 85 is a perspective view of an alternative preferred
embodiment of the arm member of FIG. 84 illustrating the use of
square shaped channels and shoulder portions;
[0095] FIGS. 86-88 are perspective views of a display support
system which enables an LCD screen mount to be quickly repositioned
in either a portrait or a landscape orientation;
[0096] FIG. 89 is a partial cross sectional view in accordance with
section line 89-89 in FIG. 88;
[0097] FIG. 90 is a partial cross sectional view of an alternative
preferred embodiment of the display system shown in FIG. 89, which
incorporates stop members for limiting movement of an LCD mount
member between two positions 90 degrees apart from one another;
[0098] FIG. 91 is a simplified cross sectional view of the neck
portion of an LCD support member in accordance with section line
91-91 in FIG. 90 illustrating the two grooves which limit movement
of the neck portion;
[0099] FIG. 92 is a perspective view of the LCD screen mounting
member and a portion of the support member, illustrating the recess
in the support member;
[0100] FIGS. 93-103 are perspective views of an LCD display system
incorporating a universal ball joint hinge for enabling a pair of
LCD screens to be placed in various orientations;
[0101] FIGS. 104 and 105 are elevational views of an arrangement
for positioning two LCD screens on a common support arm such that
the screens can be repositioned in either portrait or landscape
orientations without requiring same to be spaced at different
distances from one another;
[0102] FIG. 106 is a perspective view of a release member in
accordance with an alternative preferred embodiment of the
invention;
[0103] FIG. 107 is a partial side view of the release member of
FIG. 107;
[0104] FIG. 108 is an end view of the release member taken in
accordance with directional arrow 108-108 in FIG. 107;
[0105] FIGS. 109-111 are perspective views of the release member
being inserted into an associated support member;
[0106] FIGS. 112-114 are perspective views of the release member
being rotated within the opening in the support member;
[0107] FIG. 115 is a perspective view of a portion of the support
member of FIGS. 104-114;
[0108] FIG. 116 is a front view of a portion of the support member
showing the opening therein in greater detail;
[0109] FIG. 117 is a partial cross sectional view illustrating the
release member in one orientation within the opening in the support
member;
[0110] FIG. 118 is a partial cross sectional view of the release
member having been moved 90 degrees counterclockwise from the
position shown in FIG. 117;
[0111] FIG. 119 is a partial cross sectional side view of the
release member coupled to a lever assembly associated with the
support member, with the lever assembly locking the camming member
in place relative to the support member;
[0112] FIG. 120 illustrates the lever assembly shown in FIG. 119 in
an unlocked orientation, thereby enabling rotational movement of
the release member;
[0113] FIG. 121 is a perspective view of the support member and
lever assembly shown in FIG. 119, with the lever thereof in the
locked position;
[0114] FIG. 122 is a view of the lever of FIG. 121 but with the
lever in the open position;
[0115] FIG. 123 is an alternative preferred embodiment of an arm
assembly of the present invention incorporating a threaded locking
member for locking the arm member relative to an associated support
member;
[0116] FIG. 124 is an enlarged perspective view of a portion of the
arm member within the support arm, and with the support member
shown in phantom;
[0117] FIG. 125 is a partial end cross sectional view taken in
accordance with section line 125-125 in FIG. 123;
[0118] FIG. 126 is a partial cross sectional view taken in
accordance with section line 126-126 in FIG. 125;
[0119] FIG. 127 is an alternative preferred embodiment of the
present invention substantially in accordance with the embodiment
of FIGS. 123-126 except for the inclusion of a plurality of rollers
to assist in providing smooth rolling movement;
[0120] FIG. 128 is an exploded perspective view of an alternative
preferred embodiment of the present invention incorporating a ball
joint assembly adapted to be easily adjusted to four different
positions on a support member;
[0121] FIG. 129 is a perspective view of the mounting block shown
in FIG. 128;
[0122] FIG. 130 is an assembled side cross sectional view of the
assembly shown in FIG. 128;
[0123] FIGS. 131-133 illustrate dimensional considerations for
mounting two LCD screens such that various edges of each align with
each other when the two screens are in different orientations;
[0124] FIG. 140 is a front view of a dual LCD screen monitor system
having one screen rotating into a portrait mode;
[0125] FIG. 141 is a top view of the display system of FIG. 140
illustrating the outwardly booked position of the rightmost LCD
screen during rotation thereof;
[0126] FIG. 142 is a front view of the display system of FIG. 140
but with the leftmost LCD screen booked outwardly to enable
rotation thereof;
[0127] FIG. 143 is a plan view of the display system of FIG.
142;
[0128] FIG. 144 is a front view of the display system of FIG. 142
in the process of being rotated clockwise while in an outwardly
booked position;
[0129] FIG. 145 is a plan view of the display system of FIG.
144;
[0130] FIG. 146 is a front view of the display system of FIG. 144
with both LCD screens rotated completely into a portrait mode;
[0131] FIG. 147 is a plan view of the display system of FIG.
146;
[0132] FIG. 148 is a partial cross-sectional view in accordance
with section line 148-148 in FIG. 147 of the ball joint assembly of
FIG. 134 in use with the leftmost LCD screen in FIG. 147;
[0133] FIG. 149 is a cross sectional view in accordance with
section line 149-149 of FIG. 147 of the ball joint assembly in use
with the rightmost LCD screen in FIG. 147;
[0134] FIG. 150 is a perspective view of a portion of a base
assembly for an LCD display system incorporating a built in control
panel;
[0135] FIG. 151 is an enlarged perspective view of the control
panel shown in FIG. 150;
[0136] FIG. 152 is a perspective view of a display system
incorporating a flexible camera mounted in a support arm
thereof;
[0137] FIG. 153 is a perspective view of an alternative preferred
embodiment of the camera of FIG. 152 but also including a
microphone integrated therewith;
[0138] FIG. 154 is a front view of the display system of FIG. 152
including a pair of LCD screens attached thereto;
[0139] FIG. 155 is a side view of the display system of FIG.
155;
[0140] FIG. 156 is an enlarged perspective view of the camera shown
in FIG. 152;
[0141] FIG. 157 is a front view of an alternative preferred
embodiment of an LCD display system incorporating a camera built
into the bezel of one of the LCD screens thereof;
[0142] FIG. 158 is a perspective view of a clip incorporating a
camera which can be secured to a bezel of an LCD screen; and
[0143] FIG. 159 is a partial perspective view of an LCD screen
incorporating the clip attached to the bezel of the screen.
DESCRIPTION OF A SPECIFIC EMBODIMENT
[0144] As already explained, the invention in this particular
embodiment illustrated, has its application to the use of dual
display screens, which can be used to display two different
computer images simultaneously. This may have application for
example in CAD computer design application. For these and other
purposes it is particularly useful if the two screens or displays
can be tilted towards one another so that they appear in the form
more or less of two pages of an open book. The screens are
preferably arranged side by side, in horizontal alignment, but may
also be arranged vertically one above the other.
[0145] Referring now to FIGS. 1, 2 and 3, the invention is there
illustrated as in the form of a pair of video display screens 10
and 12, each of which may be of known construction, but which may
typically be liquid crystal displays for example. They are each
provided with video terminal connectors 14 (FIG. 2) by means of
which they may be connected to a computer.
[0146] Each of the screens 10 and 12 comprises a central
rectangular display portion 16, and a rectangular marginal frame
18.
[0147] The two display screens 10 and 12 are mounted at opposite
ends of a mounting arm 20. The mounting arm 20 is itself supported
on an upright stand 22 and a base 24. The arm 20 may be connected
to the base 22 by a coupling means 26 (FIG. 4) by means of which
the arm may be attached during assembly, either horizontally, or
vertically (FIG. 6) prior to delivery to the customer.
[0148] In some cases the manufacturer may simply make the arm
permanently attached in one position, i.e. horizontal or the other
i.e. vertical, to reduce expense.
[0149] As will be noted in FIGS. 2 and 4, each of the displays 10
and 12 is mounted on respective free ends of arm 20, by means of a
swingable mounting means 28 and 30 respectively.
[0150] The swingable mounting means 28 and 30 are so constructed as
to permit the two screens 10 and 12 to be swung together towards
one another, into the configuration shown in FIGS. 1 and 4, in
which they both remain in the same upright planes, and in which
they are both swung towards one another by equal angles. In this
way, as the two screens 10 and 12 are swung towards one another
into this configuration, the angular displacement of one screen is
equal to the angular displacement of the other screen, so that the
two frames 18 of the screens 10 and 12 substantially meet at a
central point indicated generally as P, thus bringing the two
screens 16-16 as close as possible together and at the same time,
as far as possible, simulating the appearance of two pages of a
book opened up.
[0151] It will be observed that when the arm 20 is fastened in its
vertical position as shown in FIG. 5, the lower one of the two
screens 10 and 12 is moved up the arm, because in the vertically
stacked orientation, the rectangular screens have a shorter
vertical dimension, and it is desirable that they should be as
close to one another as possible when they are swung together, so
that the longer sides meet at point P.
[0152] From the foregoing description it will be understood that it
is desirable that the two screens can be swung together into their
inwardly angled relation as shown in FIGS. 1 and 4, or FIG. 6, but
that the screens should be capable of being tilted only to a
limited degree in any other direction relative to one another,
since this might reduce the clarity of the dual display. However,
the two screens may be tilted slightly upwardly, or downwardly by
similar angular displacements. In this way the simulation of an
open book arrangement is maintained.
[0153] For these reasons, the two display screens 10 and 12 are
mounted on the arm 20 by means of the swingable mountings 28 and
30. These mountings will now be described in greater detail with
regard to FIGS. 7, 8 and 9.
[0154] FIG. 7 illustrates the mounting 28 or 30 in an exploded
perspective view. The swingable joint consists essentially of a
ball 32, and a socket 34, with the ball 32 being preferably cast
out of a suitable material preferably a metallic material and the
socket 34 being cast preferably of a somewhat resilient material
such as a thermoplastic. The ball 32 is mounted on a neck 36, which
extends from a generally rectangular junction block 38. The block
38 is formed with a plurality, in this case four, rectangular guide
members 40, spaced apart at 90 degrees from one another around the
block 38.
[0155] One of the guide members 40A, is wider than the other three
guide members 40, to provide guidance when the guide members are
assembled in a manner to be described below.
[0156] The block 38 and guide members 40 are designed to fit into
suitable recesses in the arm 20 (described below).
[0157] A collar member 42 of generally semi-arcuate shape, is
designed to fit over the block 38 and around the socket 34, for
reasons to be described below. Collar 42 is formed with fastening
flanges 44 by means of which it may be secured in position as
described below.
[0158] In this particular embodiment, the arm 20 is provided at
each end with three mounting recesses 46A, 46B and 46C. Each
mounting recess 46 has four channel shaped grooves 48 formed
therein spaced at ninety degrees therearound. The channel shaped
grooves 48 are intended to receive the rectangular guide members 40
of the swingable joints.
[0159] One of the guide channel grooves 48A is wider than the
others, to receive the wider one 40A of the rectangular guide
members. In this way the guide members provide a keying function,
which controls the positioning of the swingable joints and the
display screen.
[0160] Bolts 50 align with the blocks 38, and are received in
suitable threaded bores 51 (FIG. 7) and secure the assemblies in
position.
[0161] The ball 32 is provided with a plurality, in this case four
screw receiving bores 52, adapted to receive screws 54 therein. The
sockets are spaced around the widest part of the ball 32, and are
radially spaced apart by 90 degrees from one another. It will be
appreciated that while there are four such bores 52, in certain
circumstances only two or three screws 54 will be inserted, for
reasons to be described below.
[0162] The heads of the screws 54 are cylindrical and protrude
outwardly from the ball 32, and are received in respective slots 56
formed in socket 34. The ball 32 is a snug frictional fit within
the interior of socket 34, so that a significant twisting moment is
required to rotate the ball within the socket.
[0163] Clearly depending on the number of screws 54 in position,
the actual movement of the ball in the socket is restricted. Thus
for example if there are three such screws 54 in position, two of
the screws 54 will simply limit the movement of the ball 32, so
that the ball 32 can virtually be moved only around the axis of the
two screws 54. If a third screw 54 is inserted then it will
restrict movement of the ball so that it can be rotated only in
such a fashion that the screw 54 rides along its respective groove
56, but that it will not be able to move significantly in the
reverse angular direction.
[0164] For reasons to be described below, two of the slots 56A and
56B are wider and the other two slots 56 are narrower.
[0165] The socket 34 has a generally annular base 58, and a spring
loaded plate 60 abuts against the annular base 58. The shape of the
socket 34 is such that a small cylindrical boss 59 project through
a registering opening in the spring plate 60, (FIG. 9).
[0166] The spring plate 60 is secured in position by means of
screws 62 passing through suitable registering openings 61 on the
flange 44 of the collar 42, and secured in threaded openings 63 in
plate 60.
[0167] By tightening or loosening the screws 62, it is possible to
apply greater or lesser pressure by flexing the plate 60 against
the rear surface of socket 34, and thus adjust the friction between
the surface of the ball 32 in the socket 34. In this way it is
possible to preset the rotational force or torque that would be
require to rotate the ball in the socket.
[0168] Additional control of the friction on the ball is provided
by means of the frusto-conical collar 42. This mates with
frusto-conical bevels 64 on the exterior of collar 34. Thus by
tightening or loosening the screws 50 in the sockets 48, the collar
42 can be made to squeeze and wedge the four sides of the socket 34
together tightly around the ball 32 and thus still further control
the friction applied by the socket 34 to the ball 32.
[0169] In order to further control and limit the swinging of the
ball 32 and stem 36 relative to the socket 34, limiting screws
70-70 are provided, which can be inserted or removed in suitable
threaded inserts 72-72 in annular base 58 of socket 34.
[0170] One or more such screws 70 can be inserted (FIG. 9) and can
be adjustably positioned, so as to abut against the cylindrical
heads of screws 54, and thus limit swinging of the ball 32.
[0171] Access to screws 70 can be obtained through registering
opening 74 in plate 60.
[0172] As mentioned, all of these settings would be preset in the
factory before shipment, so that in use the actual scope of
movement of the display screen, by means of rotating the ball 32 in
the socket 34 is substantially restricted or limited.
[0173] It will thus be seen that the novel ball and socket joint
described provides a great degree of control on the angular
position of the article attached to it, in this case the screens 10
or 12. In fact, by suitable adjustments in the factory, the
friction on the ball 32 can be made sufficiently tight that it is
substantially impossible to manually move the arm 36 on which the
ball 32 is mounted, simply by grasping the block 38.
[0174] However, the friction can be so adjusted that by grasping
the two edges of the display screen, the position of the display
screen can be manually adjusted to the most suitable position, and
once adjusted it will remain substantially fixed in that
position.
[0175] Thus, once the block 38 is inserted in position in its
socket in the arm, and locked in position, then by grasping the two
side frames of the screen, sufficient torque can be applied, to
adjust the position of the screen and rotate the ball 32 in the
socket 34 until the screen is in the desired position.
[0176] In accordance with various further embodiments of the
invention as illustrated in FIGS. 13 through 29, the invention
provides for a still greater range of interchangeability either as
between one screen and another screen for computer, which may
facilitate either the use of a small portable screen or a much
larger screen, or the use of a plurality of screens, or the ready
interchangeability of simple forms of screen mountings.
[0177] FIGS. 13, 14, 15 and 16 indicate one form of interchangeable
screen attachment, being a further embodiment of the ball and
socket joint as illustrated in FIGS. 7 through 12. In this further
embodiment, a modified form of plate 80 is secured to the ball and
socket joint 28-30. The plate 8 in this case is formed with a
generally V-shaped socket 82, the edges of the V-shaped socket
being formed with flanges. A complementary attachment plug 84 is
mounted on a plate 86 which is secured to the back of the screen
18. In this embodiment the arm 20 is shown mounted on an
independent base stand 88, and the actual computer and keyboard may
be located elsewhere and simply connected by suitable coupling
cables (not shown) so that the entire arrangement of displays and
mounting arm can be positioned wherever it is most convenient.
[0178] In this embodiment, for added security, locking screws 90
may be provided in either side of the V-shaped recess 82. The
flexibility of the interchangeable screen system according to the
invention is further illustrated in FIGS. 18 and 19. In this case,
a portable mounting base for a single display screen may be
provided. In this case a base 92 is formed with a groove 94. A
swingable upright arm 96 is swingable into and out of the groove
94. The arm 26 may have a telescopic ability, and may be provided
with a V-shaped retaining slot 98 at its upper end, for retaining a
display screen shown in phantom as 12, having a mounting plug 84
formed to fit the slot 98. If desired the slot 94 may also be
arranged to hold a manual computer "mouse" device of a type well
known in computer art indicated generally as M, giving a limited
degree of control over the display on the screen. FIG. 19a
illustrates the device with the arm 94 swung downwardly into the
groove 92 and nested.
[0179] FIG. 20 illustrates a modification of this concept, in which
for example a computer of the lap-top type indicated generally as C
may be provided with a swingable support arm 100, having a V-shaped
slot 102 at its upper end similar to the slot 98. A display screen
indicated generally as 12 may have a mating groove or recess 104
adapted to receive the arm 100, and within the groove 104 there is
a V-shaped locking flange 106 shaped to mate with the V-shaped slot
102. The locking flange 106 can be provided with electrical
contacts 107. Contacts 107 can be arranged to contact matching
contacts 108 (FIG. 19), in the V shaped slot 102. This arrangement
can be used in all these embodiments to avoid the use of cables
wherever possible.
[0180] In this way the entire combination of lap-top computer and
display 12 can be fitted together and swung down into a closed
position for carrying or storage and can be swung upwardly for use,
and if desired, the screen 12 as illustrated can be easily removed
and a screen having different characteristics or a larger screen
can simply be snapped in position, if desired.
[0181] FIG. 21 illustrates the adaptability of the system for use
in for example the removable mounting of a display screen on a
wall, or the side of a booth for example. In this case a wall
mounting block 110 can be attached by any suitable fastening means
(not shown) for securing the same to a vertical surface. The
mounting block 110 may have finger operated controls similar to a
computer "Mouse" for limited control of the display on the screen
for demonstration or presentation purposes and may have speakers
for combined audio and visual effects.
[0182] The display screen 12 itself can again simply be mounted on
an upright arm 112 having at its upper end a generally V-shaped
recessed body 114, preferably on a hinged mount 116. The screen 12
will be supplied with a suitable V-shaped locking flange on its
rear surface (not shown) of the type already described.
[0183] FIG. 22 illustrates the same concept for the mounting of a
display screen indicated as 12 in a vehicle. This may have
application particularly for sales persons and for displaying maps
of cities and the like, to assist drivers of delivery vehicles. In
this case the display screen 12 can be mounted on an arm 120
secured at a suitable position on the front of the interior
compartment of the vehicle. Again a releasable mount of the
V-shaped slotted type shown as 122 is provided on the arm 120, and
the screen 12 would be provided on its rear with a suitable
inverted V-shaped locking flange fitting in the recess 122. There
would also be provided matching electrical contacts, described
above, in these components, to avoid the use of cables. In this
way, the screen 12 could be placed and locked in position when it
was required, and when the vehicle was parked the screen 122 could
simply be easily dismounted and placed in the trunk, or taken out
of the vehicle altogether, for greater security.
[0184] The screen 12 would be connected to a suitable small
computer (not shown) again being of the portable type so that it
could readily be removed from the vehicle.
[0185] A somewhat similar arrangement could be made for the rear
compartment of the vehicle illustrated in FIG. 23. In this case a
swingable arm 126 is shown mounted in the rear surface of each of
the front seats indicated as S in a vehicle.
[0186] A suitable V-shaped slotted mounting recess 128 would be
mounted on the arm 126. The arm 126 could be swung out from the
seat, and a display screen 12 could be mounted on the V-shaped
recess.
[0187] FIG. 24 illustrates a typical laptop computer C, having an
enlarged display screen 12 mounted on a hinged arm 130, which is
hinged to the rear of the computer. This illustrates the
adaptability of the interchangeable screen mounting using the
V-shaped recess and plug, so as to adapt a smaller laptop type
computer C, with use with a much larger screen 12.
[0188] FIG. 25 illustrates the use of a free-standing screen 12
having a rearwardly mounted hinged leg 132, which can be swung
rearwardly to support the screen at an angle somewhat in the manner
of an easel. Again, the hinging leg 132 can be connected to the
back of the screen 12 by interchangeable means such as the V-shaped
recess and plug, if desired.
[0189] FIG. 26 illustrates another configuration, in which a
computer indicated generally as C may be provided with two screens
12A and 12B swingably and hingeably mounted to the rear edge of the
computer C. The lower screen 12A is hinged along the line 134. The
upper screen 12B is hinged to the lower screen 12A by means of the
generally cylindrical tubular hinge bar 136.
[0190] As illustrated in FIG. 27, the uppermost screen 12B can be
swung into an obtuse angle relative to the lower screen 12A so that
the two screens 12A and 12B can be viewed by at least two persons
sitting opposite to one another. By means of suitable software,
when the upper screen 12B is swung into the obtuse angle shown, the
image on the screen 12B will be reversed, so that the images on
screens 12A and 12B are both viewed the right way up.
[0191] FIGS. 28 and 29 illustrate forms of free-standing dual
screens indicated generally as 140 and 142, connected together by a
tubular hinge bar 144.
[0192] The pairs of screens 140 and 142 can be swung open at obtuse
angles to one another and stood on a surface such as a table as
illustrated in FIG. 29. They may be connected to a computer C by
means of daisy chain cables 146, which plug into opposite ends of
the tubular hinge bar 144. As in the embodiment of FIGS. 26 and 27,
the computer will contain suitable software the nature of which is
to invert the image as between one screen and the other so that
both screens show their respective images the right way up.
[0193] Various other modifications and adaptations can also be made
using the principles of the invention.
[0194] Thus, FIG. 30 is a perspective illustration of an alternate
form of tripod display stand 145 for holding three displays 12 for
example, on a conference room table or the like.
[0195] FIG. 31 is a perspective illustration of the tripod support
145 of FIG. 30.
[0196] FIG. 32 is a rear perspective partially exploded view of
another form of dismountable display leg 130 for a display screen
12.
[0197] FIG. 33 is a rear perspective illustration of a typical lap
top computer C, having two display screens 12A and 12B, the one
being slidable relative to the other for nesting, or extendable for
use on arms 150.
[0198] FIG. 34 is a perspective illustration of the lap top
computer C with dual display screens 12A and 12B of FIG. 33 showing
the display screens in another configuration.
[0199] FIG. 35 is a perspective illustration of another form of lap
top computer C having two display screens 12A and 12B, and showing
a slidable cover panel 152 for one of the two display screens.
[0200] FIG. 36 is a rear perspective view of another form of
display screen 154, showing attachment recesses 156 for various
components. Electrical connections 157 are incorporated in the
recesses 156 for interconnection with matching contacts (not shown)
in suitable accessories. Accessories may include audio speakers,
and video cameras for direct feed back, to give only two
examples.
[0201] FIG. 37 is a perspective illustration of, for example, a lap
top computer C showing two display screens 154-154 such as that
illustrated in FIG. 36, being attachable to a hinge mounting 158 on
the computer.
[0202] FIG. 38 is a front elevational view of a pair of display
screens 154-154 as illustrated in FIG. 36 shown side by side with
audio speakers 158 and video cameras 159 attached.
[0203] FIG. 39 is a front elevational view corresponding to FIG.
38, but showing the two display screens 154-154 one above the
other,
[0204] As best shown in FIGS. 40, 41 and 42, a further embodiment
of the invention may provide for a typical computer C having two
display screens 160 and 162. The screen 160 is hinged to the
computer by means of a hinge 164. The second screen 162 is hinged
to the first screen by means of a vertical hinge along one side
indicated as 166.
[0205] As best shown in FIGS. 41 and 42, the two screens 160 and
162 may either be swung out so that they are side by side with one
another facing the operator of the computer C, or, as shown in FIG.
42, the two screens may be swung so that screen 162 is back to back
with screen 160, thereby displaying the display both to the
operator of the computer and to somebody sitting facing him. In
this form of the invention special software and the like will not
be required for the reversing of the images, since both images will
be shown the right way up.
[0206] Referring briefly now to FIG. 43, a computer 168 in
accordance with another alternative preferred embodiment of the
present invention is shown. The computer incorporates a center LCD
panel 170 pivotably mounted by a hinge 172 to a base portion 174 of
the computer. Pivotably supported on opposite sides of the center
LCD panel 170 are a pair of LCD panels 176 which are each about
one-half the width of the center LCD panel 170. The outer LCD
panels 176 are supported by hinges 178, which may be identical in
construction to hinge 172. The outer LCD panels 176 may be folded
over the center LCD panel 170 and the entire display portion
comprising panels 170 and 176 then folded down against the base 174
to form a compact unit that may be easily carried.
[0207] In FIG. 43A, a multimedia laptop computer 168' is shown. The
computer 168' incorporates a pair of speakers 175 which are
hingedly coupled via hinges 178' to a lower LCD panel 170'. The
lower LCD panel 170' is itself hingedly coupled to a keyboard
portion 174' via a hinge 172'. An upper LCD panel 179 is also
hingedly coupled via a hinge 177 to the lower LCD panel 170'. When
folded, the computer 168' forms a compact, lightweight system.
[0208] Referring now to FIGS. 44-49, a display system 180 in
accordance with another alternative preferred embodiment of the
present invention is shown. The display system 180 includes a base
182 and a support column 184. Secured to the support column 184 is
a lower support arm 186 and a telescoping upper support arm 188.
Attached to each support arm is a mounting assembly 190, which
preferably comprises a ball joint such as that described herein.
Secured to each mounting assembly 190 is a LCD panel 192.
[0209] With specific reference to FIGS. 45-47, the lower support
arm 186 comprises a tubular construction and the upper support arm
188 comprises a neck portion 194 which enables the upper support
arm 188 to be extended (i.e., telescoped) relative to the lower
support arm 186. The upper support arm 188 further includes a hinge
196 which enables the upper LCD panel 192 to be angled relative to
the neck portion 194 so as to place it at a convenient viewing
angle. As is apparent in FIG. 47, the upper LCD panel 192 can even
be rotated into position to face away from the lower LCD panel 192.
This orientation is particularly well suited for retail
applications where a sales person needs to view information while
inputting product or other information, and where it is desirable
to display to the customer various items of information as the
transaction is conducted. Advantageously, the telescoping upper
support arm 188 and the hinge 196 enable the two LCD panels 192 to
be placed at separate heights to accommodate airline ticket
counters, hotel registration counters and other like structures
where an employee's counter is frequently at a different height
from a surface or counter useable by a customer.
[0210] FIGS. 47 and 48 illustrate the display system 180 in use at
an ailine ticket counter 198 having a first counter 200 at a lower
height than a second counter 202. In this application it will be
appreciated that suitable software will be required to "flip" the
image displayed on the upper LCD panel 192. The telescoping upper
support arm 188 inherently provides a degree of adjustability to
accommodate a range of counter heights without modification to the
either of the support arms 186,188 or the support column 184.
[0211] FIG. 49 illustrates the two LCD panels 192 folded together
such that the display system 180 forms a compact assembly which may
be easily transported if needed. In this regard it will be
appreciated that any form of conventional clasp may be included to
secure the folded LCD panels 192 to one another or to the base.
Also, a handle could easily be attached to a portion of the display
system 180, such as the support column 184, to enable the system
180 to be easily transported.
[0212] Referring now to FIGS. 50 and 51, still another display
system 200 is shown. With specific reference to FIG. 50, the
display system 200 includes a support column 202 and an upper
support member 204 having a neck portion 206. The support column
202 includes a bore 208 adapted to receive the neck portion and
enable the neck portion 206 to rotate or swivel therein such that
the upper support member 204 can be swiveled. The support member
204 is secured to a rear surface 212 of a LCD panel 210 through
either a fixed arrangement or a pivotable mounting arrangement such
as disclosed herein. The neck 206 may be captured by any suitable
arrangement in the bore 208 such that the LCD panel 210 is not
removable from the support column 202. Alternatively, it may be
releasably disposed in the bore 208 such that the entire upper
support member 204 and LCD panel 210 may be lifted out of the
column 202 before repositioning the LCD panel 210 as desired. In
this manner the clearance between the LCD panel 210 and the support
column 202, which would otherwise be important for allowing the
support member 204 to freely rotate with the LCD panel 210 thereon,
will not be a concern.
[0213] With specific reference to FIG. 51, the display system 200
is shown with the upper LCD panel 210 rotated to a position
perpendicular to a lower LCD panel 212. The support column 202 is
supported on a base 214. In FIG. 52 the upper LCD panel 210 is
rotated 180 degrees from the lower LCD panel 212 to permit two
individuals facing each other to each view one of the LCD panels
210,212.
[0214] Referring now to FIG. 53, a modular display system 300 is
shown in accordance with another alternative preferred embodiment
of the present invention. The display system 300 is intended to
support anywhere from one to four independent LCD display panels,
but it will be appreciated that the system 300 could easily be
expanded to support more than four LCD panels if needed, as will be
explained momentarily.
[0215] Referring to FIG. 53, the system 300 includes a base 302, a
support column 304, a first support arm 306, a second support arm
308 and a third support arm 310. Each support arm 306, 308 and 310
includes at least two coupling assemblies 312, and preferably three
such assemblies 312. The support column 304 also includes once such
assembly 312, although this member could also include several
assemblies 312 if needed. Support arms 306, 308 and 310 each also
include a mounting member 314 (with the mounting member of support
arm 306 being hidden in FIG. 53) which is disposed preferably at an
approximate mid-point along a length of its support arm. Each
mounting member 314 is adapted to engage in either one of two
positions 90 degrees offset from one another in one of the coupling
assemblies 312 in a key-like fashion to hold its associated LCD
panel in either a portrait orientation or a landscape
orientation.
[0216] The pair of coupling assemblies closely adjacent each other
on each support arms 308 and 310 are provided to space two
adjacently positioned LCD panels mounted on each arm slightly
farther apart from each other to provide additional clearance
needed when the two LCD panels are placed in a landscape
orientation. Thus, in a landscape orientation, the two LCD panels
supported on either of the arms 308 and/or 310 will be supported at
the two outermost coupling assemblies 312 near the very ends of
each arm. In a portrait orientation the LCD panels will need to be
spaced closer to each other, thus requiring one of the LCD panels
to be coupled to the more inwardly positioned assembly 312a (FIG.
53) of each support arm 308 and 310. The closely positioned pair of
coupling assemblies 312 on support arm 306 enables the third
support arm 310 to be mounted in one of two positions on arm 306
depending upon whether the LCD panels are disposed in a landscape
or a portrait orientation. FIGS. 55-57 illustrate four LCD panels
316 supported on the display system 300. It will be appreciated
that each of the LCD panels 316 includes a mounting member
identical or similar to members 314 on a rear housing surface
thereof such that each can be quickly and easily coupled to one of
the coupling assemblies 312.
[0217] It will be appreciated that the display system 300 could
easily be used to support less than four LCD panels 316 if desired.
For example, in the drawing of FIG. 54 the second support arm 308
could be eliminated and the one LCD panel 316 coupled directly to
the vertically uppermost coupling assembly 312. This arrangement is
illustrated in FIGS. 58-60. Alternatively, the lower support arm
310 could be eliminated and a LCD panel 316 coupled directly
thereto as illustrated in FIGS. 61 and 62.
[0218] It will be appreciated that the display system 300 could be
easily modified through the use of additional support arms to
support more than four LCD panels 316 if needed. For example, the
support arm 306 could be lengthened sufficiently to extend above
the second arm 308, and a fourth support arm identical to arms 308
and 310 could be coupled perpendicularly thereto such that two
extra LCD panels could be supported. An even longer support member
and still another extra support arm could be incorporated to
support eight LCD panels 316. As can be appreciated, a very large
plurality of independent LCD panels can be supported from a single
base 302 and support column 304 if needed. Particularly desirable
is the feature of being able to orientate the LCD panels 316 in
either portrait or landscape mode, or a combination of each, as
needed. FIGS. 63 and 64 illustrate variations of the above
described display systems incorporating both landscape and portrait
orientated LCD panels 316.
[0219] Referring now to FIGS. 65-70, a display system 400 in
accordance with another preferred alternative embodiment of the
present invention is illustrated. Display system 400 incorporates a
base assembly 402, a vertical support member 404, and a pair of
telescopically mounted support arms 406 supported by a central arm
408 which is secured to the vertical support member 404 either
fixedly (i.e., non-movably) or for rotational movement relative to
the vertical support member 404. Each support arm 406 includes a
mounting member 410 for supporting an LCD screen on the arm, as
hereinbefore described. The support member 408 may be tubular, in
the form or a C-channel or the form of a U-channel, and
telescopically supports each arm 406 for sliding movement into or
outwardly of the support member 408. Since the two support arms 406
are independent members, each can be extended or retracted without
the need for moving the other support arm 406.
[0220] With specific reference to FIGS. 65 and 68, the system 400
is shown supporting a pair of LCD screens 412 attached to the
mounting members 410 both in a portrait orientation. In this
illustration, the LCD screens 412 comprise 10 inch screens. The
independent adjustability of each support arm 406 enables each LCD
panel 412 to be extended to the position needed to place the two
LCD screens 412 closely adjacent each other.
[0221] Referring to FIGS. 67 and 70, the display system 400 is
shown supporting one of the LCD display screens 412, which in this
example is a 10 inch screen, in a portrait orientation, and the
other screen 412, which in this example is a 15 inch screen, in the
landscape orientation. The independent movement of each support arm
406 allows each to be adjusted to the proper length of extension to
permit the LCD screens 412 to be positioned side-by-side in this
orientation, and also such that they are abutting or virtually
abutting each other so that there is no objectionable gap between
them. The display system 400 thus enables monitors of varying sizes
to be mixed as needed and positioned to most efficiently enable the
user to view information on the screens 412.
[0222] Referring now to FIGS. 71-75, a display system 500 is
illustrated in accordance with another alternative preferred
embodiment. The system 500 is identical to the system 400 of FIGS.
65-67 with the exceptions of locking mechanisms on each of the
support arms and a centering device for centering two LCD screens
on the display system 500.
[0223] Referring specifically to FIG. 71, the display system 500
includes a base 502, a vertical support member 504 fixedly secured
to the base 502, and a pair of support arms 506 each disposed for
telescopic movement relative to a center support arm 508. The
center support arm 508 also includes two locking mechanisms 510
which can be used to lock each support arm 506 at a desired
position such that the locked arms 506 cannot move. A centering
member 512 is pivotably disposed on the support arm 508.
[0224] The locking mechanisms 510 may comprise buttons which are
biased toward their respective support arm 506 such that they
automatically engage with preformed openings in their respective
support arm 506, and need to be depressed to release their
associated support arms before each can be extended or retracted
from the support member 508. FIG. 72 illustrates the support arms
506 in their fully retracted positions.
[0225] Referring to FIGS. 72-76, the centering member 512 will be
described in further detail. The centering member 512 comprises an
independent member which is pivotably secured by a pair of pivot
pins 514, shown in FIG. 75, which are disposed in openings formed
in the support member 508. When in the retracted or closed position
shown in FIG. 72, the centering member 514 sits flush with an outer
surface of the support member 508. When extended, the centering
member 514 projects outwardly of the support member 508 to form a
means by which the LCD screens supported on the arms 506 can be
precisely centered on the arm 508. In the retracted position, the
centering member 514 rests within a recess or opening 516 formed in
the arm 508. FIG. 74 shows the centering member 512 extended to
enable centering of a pair of LCD screens 518 mounted thereon via
mounting members 520. FIG. 76 illustrates a pair of LCD screens 518
of different sizes to further illustrate the easy centering thereof
by use of the centering member 512.
[0226] Referring now to FIG. 78, a means of providing enough
clearance around the support arm of a display system to permit
increased booking of a pair of LCD screens is shown. In FIG. 77, a
display system 600 substantially identical to the display system
400 of FIGS. 65-67 is shown, illustrating that this system enables
a slight degree of booking which, in some situations may not be as
much as a user would desire. In this example each LCD screen 612
can only be "booked" inwardly toward each other a slight degree due
to the presence of the support arm 608. The display system 700
shown in FIG. 78 overcomes this problem. The display system 700
includes a vertical support member 704 which supports a support
member 708. The support member 708 telescopically supports a pair
of independent support arms 706. However, the support member 708 is
formed with a concavity or "bend" 708a at the longitudinal midpoint
thereof. The centering component 714 is preferably disposed at this
midpoint 708a and may include an arcuate shape to conform and blend
in with the outer surface of the support member 708 at this point
on the member 708. Thus, an increased degree of booking is enabled
without the requirement of any additional component parts.
[0227] Referring to FIGS. 79-81, a display system 800 in accordance
with another alternative preferred embodiment of the present
invention is shown. The display system 800 includes a modified base
assembly which can be adjusted to provide a larger "effective"
footprint to thereby support larger LCD screens with even greater
stability.
[0228] The display system 800 includes a base 802, a vertical
support member 804, and an arm assembly 806 which, in this
embodiment, is identical to the arm construction of the embodiment
700 shown in FIG. 78 and the description above relating thereto. It
will be appreciated immediately, however, that the base assembly
802 could be used with virtually any form of arm, and is therefore
not limited to the support arm 806 shown in FIG. 79.
[0229] The base assembly 802 includes a platform 808 which includes
at least a pair of integrally formed channels 810. Each channel
telescopically supports an independent support foot 812. Each
support foot 812 includes a neck portion 814, illustrated in FIG.
80, which resides completely within its associated channel 810 when
the foot is in a retracted position, as illustrated in FIG. 79.
[0230] When one or more LCD screens are being supported on the arm
assembly 806 which, because or their size or weight, require a
larger support "footprint" to ensure stability thereof, the foot
portions 810 can be quickly and easily extended by simply pulling
outwardly on each. This provides a larger effective footprint for
the base 802 and therefore even greater stability. When the larger
footprint is not required, the foot portions 810 can simply be
pushed into the channels 810 to shrink the footprint such that the
base 802 takes up less space on a desk, credenza, etc.
Advantageously, no tools are required to enlarge the footprint of
the base 802 and any LCD screens mounted on the display system 800
do not need to be removed before extending the foot portions
812.
[0231] Referring now to FIG. 81, a modified base 802a is shown
which includes an even larger platform 808 made up by a larger
front base portion 803 is shown. Base 802a enables an even further
degree of stability to be achieved over the embodiment of the base
802 shown in FIG. 79.
[0232] Referring now to FIGS. 82-86, various embodiments are
disclosed for enabling smooth, sliding movement of the support arms
described in connection with FIGS. 65, 71 and 78. In FIG. 82, a
support arm 900 and a support member 910 are illustrated. The
support arm 900 has a neck portion 902 and an end portion 901. The
end portion 901 includes an LCD screen mount 901 such as described
hereinbefore.
[0233] The neck portion 902 includes a pair of rollers 904 mounted
for free rolling movement and such that they extend just slightly
beyond the outer upper surface 902a of the neck portion 902.
Optionally, the neck portion 902 can include a channel 906 formed
in one or a pair of opposing side wall portions 908 of the neck
portion 902. A center support member 910 is formed of a tubular
construction and includes a projecting lip portion 912a extending
from a lower wall 912. Disposed in the lower wall 912 are a pair of
rollers 914 mounted for rotation in cut-outs 916. The interior area
of the support member 910 accepts the neck portion 902 of support
arm 900 and the rollers 914 and 904 cooperate to enable a smooth,
low resistance rolling movement of the neck portion 902 relative to
the support member 910.
[0234] FIG. 83 illustrates an alternative preferred embodiment of
the support member 910' having a plurality rollers 914' disposed
within the support member 910'. In this embodiment no rollers 904
would need to be provided on the neck portion 902 of the support
arm shown in FIG. 82 to enable smooth sliding movement.
[0235] FIG. 84 shows a support arm 920 in accordance with another
alternative preferred embodiment of the member 910. Support member
920 includes an LCD mounting member 922, such as described
hereinbefore, and a neck portion 924 having a pair of
longitudinally extending channels 926 facing away from each other.
A support member 928 is of tubular construction and includes a pair
of opposite, inwardly facing ribs 930 which ride within the
channels 926 to help guide the neck portion for sliding movement.
FIG. 85 illustrates an embodiment 920' which is identical to the
embodiment shown in FIG. 84 except for the use of square shaped
channels 926' and square shaped ribs 930'.
[0236] Referring now to FIGS. 86-88, a locking system for enabling
quick and easy movement of a ball joint type mount from a portrait
orientation to a landscape orientation is shown. A neck 952 of a
ball joint type LCD screen support 950 has a keyed end 954. The end
954 resides within an opening 956 in a support arm 958. The keyed
end 954 has a keyed opening 960 which is able to receive a
similarly keyed member 964 of a release assembly 962.
[0237] The release assembly 962 includes a flip up handle 966
attached to a shaft 968. The shaft 968 is also attached to the
keyed member 964 and moves slidably within a washer 970 separated
from the handle by one or more springs 972.
[0238] The end 954 is captured in the opening 956 by a retainer
plate 974 which is fixedly secured to the support arm 958, as also
shown in FIGS. 87 and 88. The washer 970 is also secured to the
support member 958 such that pulling on the handle 966 allows the
keyed member 964 to be released from the keyed opening 960, when
assembled into the arm 958, thereby permitting the keyed end 954 to
be rotated while the handle 966 is pulled. In this manner the
orientation of the ball joint type LCD screen support 950 can be
changed between two orientations. FIG. 89 illustrates a partial
cross section of the release assembly 962 disengaged from the keyed
end portion 954.
[0239] Referring now to FIG. 90, another release mechanism 980 in
accordance with another alternative embodiment of the present
invention is shown. This embodiment is very similar to the
embodiment of FIGS. 86-89 with the exception that automatic stops
are built in to the mechanism to allow movement only between two
positions 90 degrees apart from one another.
[0240] With further reference to FIG. 90, two stop members 982 are
fixedly disposed within a portion of a support arm 984 having a
recess 985. A neck portion 984 of a LCD screen mount 986 includes a
pair of oppositely facing grooves formed in the neck 984 which
receive the stop members 982. As can be seen in FIG. 91, the
grooves 988 only allow the neck 984 to rotate between two positions
ninety degrees apart. The LCD screen mount 986 is also shown in
FIG. 92.
[0241] Referring further to FIG. 90, an outermost end of the neck
990 includes a pair of keyed grooves 992. A key portion 994 of a
release member 996 is fixedly secured to a shaft 998. A stop
element 1000 is separated from a wall portion 1002 of a support arm
1004 by a pair of springs 1006. The shaft 998 extends through a
hole 1008 in the wall portion 1002 and has a graspable knob 1110 at
the end thereof. Pulling outwardly on the knob 1110 against the
biasing force of the springs 1006 causes the stop element 1000 to
be withdrawn from the keyed grooves 992, thus enabling the neck 984
to be turned between one of two positions 90 degrees apart from one
another while the knob 1110 is held in its pulled out position.
When the knob 1110 is released, the springs 1000 bias the key
portion 994 back into the grooves 992 such that the neck 984 cannot
be rotated. In this regard it will be appreciated that the grooves
may also form a plurality of apertures that enable the neck 984 to
be rotated between two positions about 90 degrees apart.
[0242] Referring now to FIGS. 93-103, a display system 1120 is
shown. The display system 1120 incorporates a universal ball hinge
mechanism 1122 for coupling two LCD screens 1124 together and
allowing rotation relative to one another about two axes extending
perpendicular to each other. Release mechanisms 1126 enable the two
screens to be secured in either portrait or landscape orientations.
In this manner the screens can be used in a variety of orientations
to fit the needs of specific applications or situations where
multiple screens of information need to be displayed in certain
orientations.
[0243] Referring now to FIG. 104, a display system is 1200 is
illustrated in which a pair of LCD screens 1202 are supported on a
common display arm 1204, which is in turn supported on a vertical
support 1206. The vertical support 1206 is supported fixedly on a
base unit 1208. With this embodiment, the LCD screens 1202 do not
need to be moved closer to or farther from each other when
remounted in a landscape or a portrait orientation.
[0244] In FIG. 104, the dimension X.sub.A is set equal to the
dimension X.sub.B. Thus, when the LCD screens are repositioned on
the support arm 1204 in FIG. 105, there is sufficient clearance to
permit mounting the screens in the portrait orientation.
[0245] Referring now to FIGS. 106-118, a release member 1200 in
accordance with an alternative preferred embodiment of the present
invention is illustrated. This embodiment incorporates a shaft
1202, as illustrated in FIGS. 106-108, having a plurality of teeth
1204a, 1204b and 1204c. Teeth 1204a and 1204c are each spaced 90
degrees away from the central tooth 1204b. As shown in FIG. 107,
each tooth 1204 preferably includes a tapered edge portion
1206.
[0246] Referring to FIGS. 109-116, a support member 1208 includes
an opening 1210 designed to cooperate with the release member 1200
to enable the release member to be quickly released from a locked
position and moved between two positions 90 degrees apart from one
another. The opening 1210 includes a stop portion 1212 having
surfaces 1212a and 1212b. With brief reference to FIGS. 115 and
116, the opening also includes steps 1214, 1216 and 1218. The steps
1214, 1216 and 1218 are at 90 degree increments about the inner
periphery of the opening 1210. Each step 1214, 1216 and 1218 is
further set back from a face surface 1219, while the stop 1212 is
formed so as to be flush with the surface 1219.
[0247] Referring now to FIGS. 109-114, the release member 1200 is
illustrated being inserted into and rotated within the opening
1210. The release member 1200 fits within the opening 1210 such
that steps 1204a and 1204c are positioned on opposite sides of the
stop 1212. When fully inserted into a "locked" position, as shown
in FIG. 111, the release member 1200 cannot be turned. This is also
illustrated in FIG. 114. The tapered surfaces 1206 on each step
1204 also helps to wedge the steps 1204 into the opening 1210 to
eliminate play when the release member 1200 is in its locked
position. When the release member 1200 is partially withdrawn to
the point that the arms 1204 clear the steps 1214, 1216, and 1218,
as shown in FIGS. 112 and 113, then the entire release member 1200
can be rotated 90 degrees counterclockwise and reinserted fully
into the opening 1210. The release member 1200 is shown in this
orientation in FIG. 114. The stop 1212 acts to prevent further
rotation of the release member 1200 because of abutting contact of
arm 1204c with stop 1212. If the release member 1200 is rotated
from the orientation shown in FIG. 114 back into the orientation
shown in FIG. 112, then the abutting contact between arm 1204a and
stop 1212 limits the movement in this direction. Thus, the stop
1212, in connection with the arms 1204a and 1204c, limits the
rotational movement of the release member 1200. The orientation of
the release member 1200 relative to the opening 1210 in the two
above described positions is shown in FIGS. 117 and 118. The steps
1214-1218 provide a means to lock the entire release member 1200
immovably in place.
[0248] Referring now to FIGS. 120 and 121, a lever assembly 1220 is
illustrated for use with the release member 1200. The lever
assembly comprises a lever 1222 which is pivotably mounted to a
base element 1224. The base element 1224 is disposed within an
opening 1210 in the support member 1208. In this embodiment, the
opening 1210 includes a recess 1226 preferably deep enough so that
the lever resides therein flush with a rear surface 1208a of the
support member 1208 when the lever 1222 is in the closed position
shown in FIG. 119.
[0249] The lever 1222 is coupled to a locking shaft 1228 preferably
by a camming mechanism which retracts the locking shaft 1228 when
the lever is moved to an open position, as shown in FIG. 120. The
opposite end of the locking shaft 1228 is fixedly secured to the
release member 1200 such as by threaded engagement with a portion
of the release member 1200. The lever assembly 1220 thus forms a
convenient means by which the release member 1200, and a ball joint
assembly attached thereto, can be quickly and easily locked in
place or unlocked. FIGS. 121 and 122 illustrate the lever 1222
being moved from the closed to the open position.
[0250] Referring now to FIGS. 123-126, another alternative
embodiment of the extendable arm of FIG. 82 is shown. This
embodiment includes a support arm 1250 having a plurality of
longitudinally extending grooves or channels 1252a-1252c (FIG.
125). The channels 1252b and 1252c accept complementarily shaped
shoulder portions 1254 formed in an interior surface of a support
member 1256. The support member 1256 also includes a threaded
opening 1258 through which a threaded portion 1260 of a locking
knob 1262 is disposed. The threaded portion 1260 is fixedly secured
to a knob portion 1264 and at its opposite end rotatably to a tab
1266. The tab 1266 is shaped so as to fit within the channel 1252a
when the support arm 1250 is inserted into the support member
1256.
[0251] From FIGS. 124-126, the support arm 1250 is locked into
place by simply screwing down the locking knob 1264, which clamps
the arm 1250 securely within the support member 1252.
[0252] Referring now to FIG. 127, the locking knob 1262 is just as
easily adaptable for use with a support arm 1270 which incorporates
rollers 1274. The rollers 1274 allow an even smoother rolling
movement of the support arm 1270 into and out of its associated
support member 1276.
[0253] Referring to FIGS. 128-130, a release assembly 1300 for a
ball joint is shown. The assembly 1300 includes a ball joint member
1302, a mounting block 1304, a washer assembly 1306, a retainer
1308 and an end cap 1310. Optionally, a flat washer 1312 can also
be included.
[0254] The ball joint member 1303 includes a ball joint portion
1314 coupled via a shaft 1316 to a base member 1318. A locking
shaft 1320 projects from the base member 1318. The locking shaft
1320 includes a groove 1322 formed on an end portion thereof for
accepting the retainer 1308. The base member 1318 includes four
registration detents 1324 spaced every 90 degrees about the
periphery thereof.
[0255] The mounting block 1304 shown in FIGS. 128 and 129 includes
four raised shoulder portions 1326, one at each corner thereof. The
shoulder portions 1326 are further spaced so as to engage with the
four registration detents 1324 when aligned with the detents 1324.
A central opening 1327 provides a passage for the locking shaft
1320 to extend therethrough, and a recess 1329 in a rear surface
1331 provides room for the washer assembly 1306, the retainer 1308,
the cover member 1310, and optionally the flat washer 1312, if
included, to reside therein.
[0256] The assembled components are shown in FIG. 130. The washer
assembly 1306 preferably comprises a "wave" washer assembly which
provides a biasing force when compressed to maintain the ball joint
member 1302 securely against the mounting block 1304. It will be
appreciated that a wide variety of spring assemblies could be used
to provide a suitable biasing force in lieu of the washer assembly
1306. When assembled, the shoulder portions 1326 are held securely
within the registration detents 1324 when aligned therewith, thus
preventing rotation of the ball joint member 1302.
[0257] When it is desired to reposition the ball joint member 1302,
a pulling force is exerted on the member 1302 to momentarily urge
it away from the mounting block 1304. While in this position, the
ball joint member 1302 is rotated either clockwise or
counterclockwise. As the ball joint member 1302 is rotated, the
shoulders 1326 will automatically "snap" into the registration
detents 1324 after 90 degrees of rotation. The ball joint member
1302 can thus be positioned and held within any of four positions,
wherein each position is 90 degrees from its next adjacent
position. Advantageously, no tools or partial disassembly of the
system 1300 is required to rotate the ball joint member 1302.
[0258] Referring now to FIGS. 131-133, an arrangement is
illustrated for attaching two LCD screens 1352 and 1354 of a dual
screen LCD display system 1350 in such a manner that the screens
can be supported by a pair of ball joint type supports on a common
support arm 1356, and centered along a horizontal midpoint of each,
or aligned such that the lower or upper edges of each LCD screen
are aligned with each other.
[0259] In FIG. 133, the distance Xa is set equal to Xb, when the
two LCD screens 1352 and 1354 are to be aligned along their upper
horizontal edges. This produces hypotenuse Xc. Distance Y1
represents the desired clearance between the two LCD screens
1352,1354. Distance F represents the difference in distance by
which LCD screen 1354 exceeds LCD screen 1352. Distance Xb is 1/2
the total distance G of LCD screen 1352. When LCD screen 1352 is
positioned in the landscape orientation, its top edge is aligned
with the top edge of LCD screen 1354. When it is removed from its
ball joint support, the ball joint support rotated 90 degrees
clockwise, and the screen 1352 is rotated 90 degrees clockwise and
reattached in the portrait mode, edge 1352a will be aligned with
edge 1354a of screen 1354. Conversely, LCD screen 1354 could be
removed, its ball joint support rotated 90 degrees clockwise, the
screen 1354 rotated likewise, and resecured to its ball joint such
that edge 1352a of screen 1352 and edge 1354a of screen 1354 are
both aligned parallel to each other, which will place edges 1352a'
and 1354a' in horizontal alignment with each other.
[0260] Referring to FIG. 131, the LCD screens 1352 and 1354 can be
aligned along edges 1352c and 1354c if the mounting point of screen
1352 is moved a distance d in the X direction and a distance c in
the Y direction, and where distance c equals d, and c plus d is
further equal to G. The effect of this is that the pivot point of
LCD screen 1352 moves along the hypotenuse Xc a small distance,
thereby allowing a shorter support arm 1356 to be used. Note H is
also 1/2 the distance of the LCD screen 1352 total height. Distance
H is also 1/2 the total width of LCD screen 1354. If the LCD screen
1352 is removed, rotated 90 degrees clockwise and reattached to the
support arm 1356, then the edges 1352d and 1354d will be
horizontally aligned. It will be appreciated that an arm 1356
having the same length as the arm shown in FIG. 133 could be used,
but that such a longer arm would require that the ball joint
supports which support the LCD screens 1352 and 1354 on the arm
1356 be mounted on the arm for sliding movement so they can be
positioned closer to one another than the spacing shown in FIG.
133. In this manner the ball joints could be readjusted closer to
each other when the screens 1352 and 1354 are to be aligned as
shown in FIG. 131.
[0261] Referring to FIG. 132, the LCD screen 1352 can be positioned
perfectly centered along the vertical side of LCD screen 1354, if
the pivot point is located offset from a horizontal midpoint of
screen 1352 by a distance b in the X direction and a distance a in
the Y direction, and if b is equal to a, and the sum of b and a
equals B2. Since the LCD screen 1352 is centered along the vertical
edge of screen 1354, B2 is equal to B1. In this instance, B1 and B2
will each be 1/2 of distance F designated in FIG. 133. The LCD
screen 1352 can also be removed, its ball joint support rotated 90
degrees clockwise, and the screen 1352 reattached to the support
arm 1356, which will put edge 1352d thereof in horizontal alignment
with edge 1354d of screen 1354.
[0262] It will also be noted that the support arm 1356 shown in
FIG. 132 also is shorter than the support arm 1356 shown in FIG.
133. By therefore using the above-described guidelines, the ball
joint supports of each of the LCD screens 1352 and 1354 can be
mounted at specific points on the rear surface of each LCD screen
1352 and 1354, and spaced apart on the support arm 1356, such that
the two screens can be aligned together in various orientations
when one is in the portrait orientation and the other is in a
landscape orientation. It will also be appreciated that while the
above-described dimensions have been discussed only with regard to
LCD screen 1352, that screen 1354 will need to supported, in each
of FIGS. 131-133, with the same dimensional requirements as its
accompanying screen 1352 in each figure. Also, the distances Y1, Y2
and Y3 shown in FIGS. 133, 132 and 131, respectively, need to be
taken into account in each instance when determining the needed
spacing between the two pivot points on the support arm 1356.
[0263] Referring now to FIGS. 134-139, a ball joint assembly 1400
is illustrated which enables rotation of a neck portion 1402
relative to a base portion 1404 when the neck portion is urged into
the position shown in FIGS. 136 and 137. This feature is useful for
enabling an LCD screen to be moved from a portrait orientation into
a landscape orientation, or vice versa, without the need to first
physically detach the LCD screen from its ball joint support
assembly, while still permitting booking of the two screens
relative to each other. It will be appreciated that with the ball
joint support assemblies described previously herein, rotation of
one of two closely positioned LCD screens first requires removal of
the screen before it can be rotated. After being rotated into the
desired orientation, the LCD screen would be reattached. The
problem of sufficient clearance between the two LCD screens, and
the limitations on the construction of the ball joint assembly
itself, did not permit one of the LCD screens to simply be rotated
into another orientation.
[0264] Referring further to FIGS. 134 and 135, the ball joint
assembly 1400 overcomes this shortcoming by providing a groove
formed in the base member of the assembly 1400 which enables the
neck portion 1402 to be rotated once the neck is moved into a
booked position. To accomplish this, the neck portion 1402 includes
a pin 1406 fitted in the ball member 1408 thereof. The pin 1406 is
restrained for movement within a channel 1410. The channel enables
precise booking movement of the LCD screen (not shown) attached to
a keyed end portion 1412 of the neck portion 1402.
[0265] Formed within the base portion perpendicularly to channel
1410 is a groove 1414. Groove 1414 is sized to accept the pin 1406
once the pin is moved into alignment with the groove 1414. This
alignment is shown in FIGS. 136 and 137. When the pin 1406 is
aligned as shown in FIGS. 136 and 137, the LCD screen will be
booked outwardly such as shown in FIG. 141 by screen 1416. Once
booked into this orientation, LCD screen 1418 will not interfere
with subsequent rotation of screen 1416.
[0266] Referring to FIGS. 138-139 and 140-143, LCD screen 1416 can
then be rotated counterclockwise into the portrait orientation
without interference from screen 1418. The groove 1414 thus enables
rotation of the ball member 1408 but only once the screen 1416 has
been booked outwardly a sufficient degree to place the pin 1406 in
alignment with the groove 1406. This provides the advantage of
preventing accidental rotation of the LCD screen 1416, since the
user is required to move the screen 1416 to an outwardly booked
position (FIG. 141) before any rotation can be effected. The fully
rotated screen 1416 is illustrated in FIGS. 142 and 143.
[0267] If the ball joint assembly is orientated on its support arm
1420 in FIGS. 144-147 such that the groove 1406 is 180 degrees
displaced from the orientation in FIGS. 136 and 137, then screen
1418 in FIGS. 144-147 can be similarly rotated once it is booked
outwardly as shown in FIG. 145. Accordingly, the ball joint
assembly 1400 enables each of the screens 1416 and 1418 to be
rotated between the portrait and landscape orientations once they
are booked outwardly a sufficient degree. As such, there is no need
to first remove either screen if it needs to be repositioned.
[0268] Referring now to FIGS. 148 and 149, a portion of a base
assembly 1500 for an LCD screen is illustrated. The base assembly
1500 incorporates a built in control panel, which is shown in
enlarged fashion in Figure 1502. The control panel incorporates an
ON/OFF switch 1504, a built in speaker 1506, a volume "UP" button
1508 and a volume "DOWN" volume button 1510 for enabling easy
adjustment of the volume of the speaker 1506. A "SELECT" button
1512 enables the user to select which one of several LCD screens
being supported can be adjusted for picture brightness, centering,
etc. A "RESET" button 1514 enables the user to reset the various
visual adjustments (i.e., contrast, brightness, etc.) to default
settings. A dial 1516 enables the user to scroll through various
choices provided on the selected screen in menu format. Standby LED
1518 provides an provide an indication that one or more of the
screens are powered on. An infrared sensor 1520 enables use of the
display system with a wireless keyboard. It will be appreciated
that not all of the features of the control panel 1502 need to be
included and, alternatively, that other switches or components
could just as easily be incorporated if needed.
[0269] Referring now to FIG. 152, a display system 1550 is shown
which is substantially similar to the display system 400 of FIG. 65
with the exception of a camera 1552 mounted in a support arm 1554
thereof. The camera enables convenient video conferencing to be
accomplished from the display system 1550.
[0270] The camera 1552 includes a flexible tubular sheath 1556
which holds the orientation it is placed in. At one outermost end
of the sheath 1556 is mounted an optical camera 1558. The
flexibility of the sheath 1556 enables the camera 1552 to be
adjusted to precisely the desired height to suit the user seated in
front of the display system 1550.
[0271] Referring to FIG. 153, an alternative preferred embodiment
of the camera 1552' is shown in which a microphone 1560 is attached
to the optical camera 1558'.
[0272] FIG. 154 illustrates the camera 1552 disposed between a pair
of LCD screens 1562. FIG. 155 even better illustrates the
flexibility of the camera 1552. The flexibility of the sheath 1556
enables the optical camera 1558 to be pointed at a desired angle,
whether at the user or down on a document placed on a table
supporting the display system 1550. FIG. 156 illustrates in
enlarged fashion the sheath 1556 of the camera 1552 exiting through
an opening 1564 in the arm 1554.
[0273] Referring now to FIG. 157, a display system 1600 in
accordance with another alternative preferred embodiment is shown.
The system 1600 includes a pair of LCD screens 1602, with one of
the screens including a built-in camera 1604 placed within the
interior area of the bezel 1606 of the LCD screen.
[0274] FIG. 158 shows a clip 1608 having a built-in camera head
1610 suitable for coupling to the bezel of one of the LCD screens
1602. The clip 1608 is shown in FIG. 159 secured to a bezel 1612 of
the LCD screen 1602. Advantageously, the clip 1608 can be moved
around the bezel 1612 and secured at different positions on the
bezel 1612 to best suit the position of the LCD screen 1602
relative to the user.
* * * * *