U.S. patent number RE41,480 [Application Number 10/775,058] was granted by the patent office on 2010-08-10 for video display apparatus with on-screen display pivoting function.
This patent grant is currently assigned to Samsung Electronics Co., Ltd.. Invention is credited to Young-Chan Kim.
United States Patent |
RE41,480 |
Kim |
August 10, 2010 |
Video display apparatus with on-screen display pivoting
function
Abstract
A video display apparatus has an on-screen display pivoting
function in which, even when the user arbitrarily pivots the
monitor of a computer system, the on-screen display is normally
displayed. An on-screen display (OSD) generating section receives
horizontal/vertical synchronizing signals and clock signals, and
outputs first video signals in response to OSD control signals. A
pivot circuit section receives the first video signals, stores a
write address of the first video signals in a position-converting
manner and in correspondence with a pre-set pivot write address,
and converts the write address in response to the
horizontal/vertical synchronizing signals and the clock signals so
as to output the first video signals in the form of second video
signals. A scale converting section furnishes the
horizontal/vertical synchronizing signals and the clock signals to
the OSD generating section and the pivot circuit section,
respectively, and receives the second video signals so as to
convert scales of the second video signals. A control section
furnishes the OSD control signals and scale control signals to the
OSD generating section and the scale converting section,
respectively, and furnishes pivot control signals to the pivot
control section in response to mode control signals generated by
the user.
Inventors: |
Kim; Young-Chan (Anyang,
KR) |
Assignee: |
Samsung Electronics Co., Ltd.
(Suwon-si, KR)
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Family
ID: |
19587921 |
Appl.
No.: |
10/775,058 |
Filed: |
February 10, 2004 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
Issue Date |
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Reissue of: |
09412745 |
Oct 5, 1999 |
06346972 |
Feb 12, 2002 |
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Foreign Application Priority Data
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May 26, 1999 [KR] |
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99-19077 |
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Current U.S.
Class: |
348/569; 348/583;
345/659; 345/649; 345/660; 348/E5.1 |
Current CPC
Class: |
G09G
5/005 (20130101); H04N 21/4312 (20130101); H04N
21/47 (20130101); H04N 21/42202 (20130101); H04N
21/4314 (20130101); G09G 2340/12 (20130101); G09G
5/008 (20130101); G09G 2340/0492 (20130101); H04N
5/44504 (20130101); G09G 5/006 (20130101) |
Current International
Class: |
H04N
5/50 (20060101); H04N 9/74 (20060101); G09G
5/00 (20060101) |
Field of
Search: |
;345/649,689,650,659,660
;348/569,583 |
References Cited
[Referenced By]
U.S. Patent Documents
Foreign Patent Documents
Primary Examiner: Yang; Ryan R
Attorney, Agent or Firm: Stanzione & Kim, LLP
Claims
What is claimed is:
1. A video display apparatus with an on-screen display pivoting
function, comprising: an on-screen display (OSD) generating section
for receiving horizontal/vertical synchronizing signals and clock
signals, and for outputting first video signals in response to OSD
control signals; a pivot circuit section for receiving the first
video signals, for storing in a position-converting manner a write
address of the first video signals in correspondence with a pre-set
pivot write address, and for converting the write address in
response to the horizontal/vertical synchronizing signals and the
clock signals so as to output the first video signals in the form
of second video signals; a scale converting section for furnishing
the horizontal/vertical synchronizing signals and the clock signals
to said OSD generating section and said pivot circuit section,
respectively, and for receiving the second video signals so as to
convert scales of the second video signals in response to scale
control signals; and a control section for furnishing the OSD
control signals and the scale control signals to said OSD
generating section and said scale converting section, respectively,
in response to OSD driving signals, and for furnishing pivot
control signals to said pivot control section in response to mode
control signals generated by a user.
2. The video display apparatus as claimed in claim 1, wherein said
pivot circuit section comprises: an R-pivot circuit for receiving
R-data signals of the first video signals from said OSD generating
section, for storing in a position-converting manner a write
address of the R-data signals in correspondence with a pre-set
pivot write address in response to the pivot control signals, and
for converting the write address in response to the
horizontal/vertical synchronizing signals and the clock signals so
as to output the stored R-data signals in a form of R-data signals
of the second video signals; a G-pivot circuit for receiving G-data
signals of the first video signals from said OSD generating
section, for storing in a position-converting manner a write
address of the G-data signals in correspondence with the pre-set
pivot write address in response to the pivot control signals, and
for converting the write address in response to the
horizontal/vertical synchronizing signals and the clock signals so
as to output the stored G-data signals in a form of G-data signals
of the second video signals; and a B-pivot circuit for receiving
B-data signals of the first video signals from said OSD generating
section, for storing in a position-converting manner a write
address of the B-data signals in correspondence with the pre-set
pivot write address in response to the pivot control signals, and
for converting the write address in response to the
horizontal/vertical synchronizing signals and the clock signals so
as to output the stored B-data signals in a form of B-data signals
of the second video signals.
3. The video display apparatus as claimed in claim 2, wherein each
of said R, G and B pivot circuits comprises: an analog/digital
converting section for receiving relevant picture data signals of
R, G and B data signals, respectively, of the first video signals
from said OSD generating section so as to convert them to digital
signals; a buffering section for receiving and storing the picture
data signals from said analog/digital converting section, and for
outputting previous picture data signals upon receiving next
picture data signals from said analog/digital converting section; a
pivot controller for outputting storing position control signals
and data selection control signals in response to the pivot control
signals of said control section; a data storing section for
receiving and storing the picture data signals of said buffering
section, and for storing in a position-converting manner a write
address of the picture data signals of said buffering section in
correspondence with the pre-set pivot write address in response to
the storing position control signals; and a data selector for
receiving one of the picture data signals of the first video
signals and the picture data signals of said data storing section,
and for outputting said one of the picture data signals of the
first video signals and the picture data signals of said data
storing section in a form of second video signals.
4. The video display apparatus as claimed in claim 3, wherein said
buffering section comprises eight buffers for storing 8-bit picture
data signals from said analog/digital converting section.
5. A video display apparatus with an on-screen display pivoting
function, comprising: a power supply section for supplying power; a
display section for receiving the power from said power supply
section, and for displaying a picture of externally inputted video
signals to a user; a signal converter/clock generator section for
receiving horizontal/vertical synchronizing signals and video
signals, for converting the video signals to first digital signals
in response to first control signals, and for generating clock
signals; a decoder for receiving brightness/chromatic signals, and
for converting the brightness/chromatic signals to second digital
signals in response to second control signals; a frame rate
converter section for receiving the horizontal/vertical
synchronizing signals and the video signals from said signal
converter/clock generator section, for receiving the
brightness/chromatic signals from said decoder, for storing the
video signals in response to third control signals, and for
converting the stored video signals so as to have a certain
frequency ratio in correspondence with display characteristics of
the display section; an on-screen display (OSD) generating section
for receiving the horizontal/vertical synchronizing signals and the
clock signals, and for outputting first video signals in response
to OSD control signals; a pivot circuit section for receiving the
first video signals, for storing in a position-converting manner a
write address of the first video signals in correspondence with a
pre-set pivot write address, and for converting the write address
in response to the horizontal/vertical synchronizing signals and
the clock signals so as to output the first video signals in the
form of second video signals; a scale converting section for
furnishing the horizontal/vertical synchronizing signals and the
clock signals to said OSD generating section and said pivot circuit
section, respectively, for converting scales of video signals of
said frame rate converting section, and for receiving the second
video signals so as to convert scales of the second video signals
of said pivot circuit section in response to scale control signals;
a control section for furnishing the first, second and third
control signals to said signal converting/clock generating section,
said decoder and said frame rate converting section, respectively,
for furnishing the OSD control signals and the scale control
signals to said OSD generating section and said scale converting
section, respectively, in response to OSD driving signals, and for
furnishing pivot control signals to said pivot circuit section in
response to mode control signals; and a driving section for
furnishing video signals and driving signals from said scale
converting section to said display section.
6. The video display apparatus as claimed in claim 5, wherein said
pivot circuit section comprises: an R-pivot circuit for receiving
R-data signals of the first video signals from said OSD generating
section, for storing in a position-converting manner a write
address of the R-data signals in correspondence with a pre-set
pivot write address in response to the pivot control signals, and
for converting the write address in response to the
horizontal/vertical synchronizing signals and the clock signals so
as to output the stored R-data signals in a form of R-data signals
of the second video signals; a G-pivot circuit for receiving G-data
signals of the first video signals from said OSD generating
section, for storing in a position-converting manner a write
address of the G-data signals in correspondence with the pre-set
pivot write address in response to the pivot control signals, and
for converting the write address in response to the
horizontal/vertical synchronizing signals and the clock signals so
as to output the stored G-data signals in a form of G-data signals
of the second video signals; and a B-pivot circuit for receiving
B-data signals of the first video signals from said OSD generating
section, for storing in a position-converting manner a write
address of the B-data signals in correspondence with the pre-set
pivot write address in response to the pivot control signals, and
for converting the write address in response to the
horizontal/vertical synchronizing signals and the clock signals so
as to output the stored B-data signals in a form of B-data signals
of the second video signals.
7. The video display apparatus as claimed in claim 6, wherein each
of said R, G and B pivot circuits comprises: an analog/digital
converting section for receiving relevant picture data signals of
the R, G and B data signals, respectively, of the first video
signals from said OSD generating section so as to convert them to
digital signals; a buffering section for receiving and storing the
picture data signals from said analog/digital converting section,
and for outputting previous picture data signals upon receiving
next picture data signals from said analog/digital converting
section; a pivot controller for outputting storing position control
signals and data selection control signals in response to the pivot
control signals of said control section; a data storing section for
receiving and storing the picture data signals of said buffering
section, and for storing in a position-converting manner a write
address of the picture data signals of said buffering section in
correspondence with a pre-set pivot write address in response to
store position control signals; and a data selector for receiving
one of the picture data signals of the first video signals and the
picture data signals of said data storing section, and for
outputting said one of the picture data signals of the first video
signals and the picture data signals of said data storing section
in a form of second video signals.
8. The video display apparatus as claimed in claim 7, wherein said
buffering section comprises eight buffers for storing 8-bit picture
data signals from said analog/digital converting section.
9. The video display apparatus as claimed in claim 5, wherein said
frame rate converter section comprises: a frame memory for storing
the digital video signals from said signal converter/clock
generator section in response to control inputs; and a frame rate
converter for writing the output video signals of said signal
converter/clock generator section into said frame memory, and for
reading out the video signals written into said frame memory so as
to convert the video signals to have a certain frequency ratio in
correspondence with display characteristics of said display
section.
10. The video display apparatus as claimed in claim 9, wherein said
frame rate converter generates said control inputs and provides
said control inputs to said frame memory.
11. The video display apparatus as claimed in claim 5, wherein said
OSD driving signals are generated by the user.
12. The video display apparatus as claimed in claim 5, wherein said
mode control signals are generated by the user.
13. A video display apparatus having an on-screen display pivoting
function, comprising: on-screen display (OSD) generating means for
outputting first video signals having a write address in response
to OSD control signals; pivot circuit means for receiving the first
video signals, for converting the write address of the first video
signals, and for outputting the first video signal in a form of
second video signals having scales; scale converting means for
receiving the second video signals and for converting the scales of
the second video signals in response to scale control signals; and
control means for furnishing the OSD control signals and the scale
control signals to said OSD generating means and said scale
converting means, respectively, in response to OSD driving signals
generated by a user input.
14. The video display apparatus as claimed in claim 13, wherein
said pivot circuit means comprises: an R-pivot circuit for
receiving R-data signals of the first video signals from said OSD
generating means, for storing a write address of the R-data signals
in response to pivot control signals generated by said control
means, and for converting the write address so as to output the
R-data signals in a form of R-data signals of the second video
signals; a G-pivot circuit for receiving G-data signals of the
first video signals from said OSD generating means and for
converting the write address so as to output the stored G-data
signals in a form of G-data signals of the second video signals;
and a B-pivot circuit for receiving B-data signals of the first
video signals from said OSD generating means and for converting the
write address so as to output the stored B-data signals in a form
of B-data signals of the second video signals.
15. The video display apparatus as claimed in claim 14, wherein
each of said R,G and B pivot circuits comprises: an analog/digital
converting section for receiving relevant picture data signals of
R,G and B data signals, respectively, of the first video signals
from said OSD generating means so as to convert them to digital
signals; a buffering section for receiving and storing the picture
data signals from said analog/digital converting section, and for
outputting previous picture data signals upon receiving next
picture data signals from said analog/digital converting section; a
pivot controller for outputting storing position control signals
and data selection control signals in response to pivot control
signals from said control means; a data storing section for
receiving and storing the picture data signals of said buffering
section, and for storing a write address of the picture data
signals of said buffering section in response to the storing
position control signals; and a data selector for receiving one of
the picture data signals of the first video signals and the picture
data signals of said data storing section, and for outputting said
one of the picture data signals of the first video signals and the
picture data signals of said data storing section in a form of
second video signals.
16. The video display apparatus as claimed in claim 15, wherein
said buffering section comprises eight buffers for storing 8-bit
picture data signals from said analog/digital converting
section.
17. The video display apparatus as claimed in claim 13, further
comprising: signal converting/clock generating means for receiving
horizontal/vertical synchronizing signals and video signals, for
converting the video signals to first digital signals in response
to first control signals from said control means, and for
generating clock signals.
18. The video display apparatus as claimed in claim 17, further
comprising: decoder means for receiving brightness/chromatic
signals, and for converting the brightness/chromatic signals to
second digital signals in response to second control signals from
said control means.
19. The video display apparatus as claimed in claim 18, further
comprising: frame rate converting means for receiving the
horizontal/vertical synchronizing signals and the first video
signals from said signal converting/clock generating means, for
receiving the brightness/chromatic signals from said decoder means,
for storing the first video signals in response to third control
signals from said control means, and for converting the stored
first video signals so as to have a certain frequency ratio in
correspondence with display characteristics of a display
section.
.Iadd.20. A method of displaying an on-screen display (OSD) image
in a video display apparatus having a screen panel and a rotatable
screen body supporting the screen, the method comprising:
generating a pivot control signal to be supplied to a pivot circuit
so as to display the OSD image suitable to a rotated state of the
rotatable screen body; converting scales of externally input color
component video signals to have a certain frequency ratio in
correspondence with display characteristics of the screen panel;
manipulating a key located on the rotatable screen body; and
displaying a picture of the converted color component video signals
on the screen body, and displaying the OSD image on the displayed
picture in accordance with the pivot control signal and the key
manipulation..Iaddend.
.Iadd.21. The method as claimed in claim 20, further comprising:
generating an OSD control signal to request generation of the OSD
image according to the key manipulation by the user..Iaddend.
.Iadd.22. The method as claimed in claim 20, further comprising:
generating a mode control signal indicating a rotated state of the
screen body according to the key manipulation by the user, wherein
the pivot control signal is generated to control the pivot circuit
to generate a pivoted OSD image signal in response to the mode
control signal generated by the user..Iaddend.
.Iadd.23. The method as claimed in claim 22, further comprising:
rotating the OSD image in accordance with the mode control signal,
wherein the OSD image rotating operation comprises reordering read
sequence of the OSD data which is stored in a data
memory..Iaddend.
.Iadd.24. The method as claimed in claim 23, wherein the reordering
operation is made to form characters and/or symbols represented by
the OSD data in a perpendicularly rotated manner..Iaddend.
.Iadd.25. The method as claimed in claim 22, further comprising:
rotating the OSD image in accordance with the mode control signal,
wherein the OSD image rotating operation comprises reordering read
addresses of the OSD data which is stored in a data
memory..Iaddend.
.Iadd.26. The method as claimed in claim 25, wherein the reordering
operation is made to form characters and/or symbols represented by
the OSD data in a perpendicularly rotated manner..Iaddend.
.Iadd.27. The method as claimed in claim 20, wherein the displaying
operation comprises: reading OSD data contained in the OSD image as
first OSD data; and modifying the first OSD data as second OSD data
according to the generated mode signal..Iaddend.
.Iadd.28. The method as claimed in claim 27, wherein the modifying
operation comprises: storing a write address of the first OSD data
in a predetermined format that corresponds to the rotated position
of the screen body..Iaddend.
.Iadd.29. A method of displaying an OSD image including an
on-screen display (OSD) in a video display apparatus having a
screen panel and a rotatable screen body, the method comprising:
receiving externally input video signals having a picture;
generating a pivot control signal to display the OSD image suitable
to a rotated state of the rotatable screen body; converting scales
of the input video signals to have a certain frequency ratio in
correspondence with display characteristics of the screen panel;
displaying the converted picture; modifying OSD data corresponding
to the OSD image including the OSD with respect to the pivot
control signal; and displaying the OSD image that corresponds to
the modified OSD data on the converted picture displayed on the
screen panel..Iaddend.
.Iadd.30. A video display apparatus having a screen body and a
screen panel to display an on-screen display (OSD) image, the video
display apparatus comprising: a converter to receive externally
input video signals having a picture and to convert scales of the
input video signals to have a certain frequency ratio in
correspondence with display characteristics of the screen panel; a
controller to generate a pivot control signal to display the OSD
image suitable to a rotated state of the screen body; and a circuit
unit to display the picture of the externally inputted video
signals on the screen panel and to display the OSD image at a
rotated position in accordance with the pivot control signal on the
displayed picture..Iaddend.
.Iadd.31. A video display apparatus having a rotatable display
unit, the video display apparatus comprising: an external signal
unit to receive an external image signal; an OSD generator to
generate an internal OSD image signal in response to an OSD driving
signal; a control unit to generate a pivot control signal to
display the OSD image suitable to a rotated state of the rotatable
display unit and a OSD driving signal according to a key
manipulation by a user to indicate the rotated state of the display
unit and request an OSD, respectively; and a circuit unit to drive
the display unit to display the external image signal and to drive
the display unit to display the internal OSD image signal at a
rotated position in accordance with the pivot control signal
generated by the control unit, wherein the display unit comprises
one or more function keys to change the operation settings thereof
by indicating the rotated state of the display unit such that the
circuit unit drives the display unit to display the internal OSD
image signal in response to a selection of the one or more function
keys..Iaddend.
.Iadd.32. The video apparatus as claimed in claim 31, wherein the
display unit comprises: a screen; and a rotatable screen body
surrounding the screen having the one or more function keys
installed thereon..Iaddend.
.Iadd.33. A video display apparatus having an on-screen display
pivoting function, comprising: a rotatable display; a controller to
receive at least one of a mode control signal and an on-screen
display (OSD) control signal, and to generate at least one of a
pivot control signal and a OSD driving signal, respectively; a
frame converter to receive video signals and to convert the video
signals so as to have a certain frequency ratio in correspondence
with display characteristics of the display; an on-screen display
(OSD) generator to receive the converted video signals and to
output first video signals in response to the OSD control signal; a
pivot circuit section to receive the first video signals, to store
in a position-converting manner a write address of the first video
signals in correspondence with a pre-set pivot write address, and
to convert the write address so as to output the first video
signals in the form of pivoted second video signals in response to
the pivot control signal; and a scale converting section to convert
scales of video signals of the frame rate converter, and to receive
the pivoted second video signals to convert scales of the second
video signals of the pivot circuit in response to scale control
signals..Iaddend.
Description
BACKGROUND OF THE INVENTION
1. Technical Field
The present invention relates to a video display apparatus with an
on-screen display pivoting function. More specifically, the present
invention relates to a video display apparatus with an on-screen
display pivoting function in which, even when the user arbitrarily
pivots the monitor of a computer system, the on-screen display is
normally displayed.
2. Related Art
Generally, a video display apparatus such as the monitor of a
computer system has functions such that the user can arbitrarily
adjust the brightness and size of the picture. In addition, such a
video display apparatus typically has an on-screen display (OSD)
capability.
Monitors associated with computer systems also have the capability
of being rotated by 90 degrees about an axis passing from the front
of the monitor to the rear thereof. However, when such rotation is
carried out, the OSD on the screen of the monitor also rotates
through 90 degrees so that the letters and figures of the OSD
appear to be lying on their sides relative to their previous,
unrotated appearance.
Thus, as a result of such rotation of the monitor, the user thereof
is substantially inconvenienced in that it is difficult for the
user to see or accurately view the OSD.
SUMMARY OF THE INVENTION
The present invention is intended to overcome the above described
disadvantage.
Therefore, it is an object of the present invention to provide a
video display apparatus with an on-screen display pivoting function
in which, even when a video display apparatus such as a monitor of
a computer system is arbitrarily turned, the on-screen display can
be displayed in a normal manner.
In achieving the above object, the video display apparatus with an
on-screen display pivoting function according to the present
invention includes: an OSD (on-screen display) generating section
for receiving horizontal/vertical synchronizing signals and clock
signals from an external source, and for outputting first video
signals in response to OSD control signals from an outside source;
a pivot circuit section for receiving the first video signals, for
storing in a position-converting manner a write address of the
first video signals in correspondence with a pre-set pivot write
address, and for converting the write address in response to the
horizontal/vertical synchronizing signals and the clock signals so
as to output the first video signals in the form of second video
signals; a scale converting section for furnishing the
horizontal/vertical synchronizing signals and the clock signals to
the OSD generating section and the pivot circuit section,
respectively, and for receiving the second video signals so as to
convert scales of the second video signals in response to scale
control signals from an outside source; and a control section for
furnishing OSD control signals and scale control signals to the OSD
generating section and to the scale converting section,
respectively, in response to OSD driving signals (generated by a
user), and for furnishing pivot control signals to the pivot
control section in response to mode control signals (also generated
by the user).
In another aspect of the present invention, the video display
apparatus with an on-screen display pivoting function according to
the present invention includes: a power supply section for
supplying power; a display section for receiving the power from the
power supply section, and for displaying a picture corresponding to
video signals externally inputted by a user; a signal
converting/clock generating section for receiving
horizontal/vertical synchronizing signals and video signals, for
converting the video signals to digital signals in response to
first control signals (from an outside source), and for outputting
clock signals; a decoder for receiving brightness/chromatic signals
from an outside source so as to convert the brightness/chromatic
signals to digital signals in response to second control signals
(from an outside source); a frame rate converting section for
receiving the horizontal/vertical synchronizing signals and the
video signals from the signal converting/clock generating section,
for receiving the brightness/chromatic signals from the decoder,
for storing the video signals in response to third control signals
(from an outside source), and for converting the video signals
(thus stored) to a certain frequency ratio corresponding to display
characteristics of a display section; an OSD (on-screen display)
generating section for receiving horizontal/vertical synchronizing
signals and clock signals from an outside source, and for
outputting first video signals in response to OSD control signals
from an outside source; a pivot circuit section for receiving the
first video signals, for storing in a position-converting manner a
write address of the first video signals corresponding to a pre-set
pivot write address, and for converting the write address in
response to the horizontal/vertical synchronizing signals and the
clock signals so as to output the first video signals in the form
of second video signals; a scale converting section for furnishing
the horizontal/vertical synchronizing signals and the clock signals
to the OSD generating section and the pivot circuit section,
respectively, for converting scales of video signals of the frame
rate converting section, and for receiving the second video signals
so as to convert scales of the second video signals of the pivot
circuit section in response to scale control signals from an
outside source; a control section for furnishing the first, second
and third control signals to the signal converting/clock generating
section, the decoder and the frame rate converting section,
respectively, for furnishing OSD control signals and scale control
signals to the OSD generating section and to the scale converting
section, respectively, in response to OSD driving signals
(generated by a user), and for furnishing pivot control signals to
the pivot control section in response to mode control signals
(generated by the user); and a driving section for furnishing the
video signals and driving signals from the scale converting section
to the display section.
In this video display apparatus with an on-screen display pivoting
function, even if the screen body is turned by 90 degrees, the
letters and figures of the on-screen display are displayed in the
normal manner. Therefore, the user can use the on-screen display in
a convenient way.
BRIEF DESCRIPTION OF THE DRAWINGS
A more complete appreciation of the invention, and may of the
attendant advantages, thereof, will be readily apparent as the same
becomes better understood by reference to the following detailed
description when considered in conjunction with the accompanying
drawings in which like reference symbols indicate the same or
similar components, wherein:
FIG. 1 illustrates an on-screen display of a video display
apparatus;
FIG. 2 illustrates an abnormal display of an on-screen display when
the screen body is turned by 90 degrees;
FIG. 3 is a block diagram showing a video display apparatus with an
on-screen display pivoting function according to the present
invention;
FIG. 4 is a block diagram showing a pivot circuit section according
to the present invention;
FIG. 5 is a block diagram showing another embodiment of the pivot
circuit section according to the present invention;
FIGS. 6 and 7 illustrate data maps which are stored in the case
where the on-screen display pivoting function of the invention is
not utilized;
FIGS. 8 and 9 illustrate data maps which are stored in the case
where the on-screen display pivoting function of the present
invention is utilized; and
FIG. 10 illustrates the on-screen display displayed in the normal
manner by the video display apparatus with an on-screen display
pivoting function according to the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT
FIG. 1 illustrates an on-screen display of a video display
apparatus.
As shown in FIG. 1, the on-screen display function is carried out
on a screen 13 when the user manipulates a particular key of a key
pad 15 to generate an on-screen display 14, the key pad 15 being
located on a screen body 11 of the video display apparatus 10.
FIG. 2 illustrates an abnormal display of an on-screen display when
the screen body is turned by 90 degrees. As shown in FIG. 2, if the
screen body 11 of the video display apparatus 10 is turned by 90
degrees, then the on-screen display 14 on screen 13 is also turned
by 90 degrees. Therefore the letters and figures of the on-screen
display are laid on their side as viewed by the user. Accordingly,
when the screen body 11 of the video display apparatus 10 is turned
by 90 degrees, the user encounters a substantial inconvenience.
FIG. 3 is a block diagram showing a video display apparatus with an
on-screen display pivoting function according to the present
invention; FIG. 4 is a block diagram showing a pivot circuit
section according to the present invention; and FIG. 5 is a block
diagram showing another embodiment of the pivot circuit section
according to the present invention.
Referring to FIG. 3, the video display apparatus with an on-screen
display pivoting function according to the present invention
includes: a power supply 1000 for supplying power (9 V or 12 V); a
display panel 1100 for receiving power from the power supply 1000,
and for displaying a picture of externally inputted R-G-B video
signals to a user in response to driving signals; a signal
converter/clock generator 100 for receiving horizontal/vertical
synchronizing signals H/V SYNC and R-G-B video signals, for
converting the R-G-B video signals to digital signals in response
to first control signals (from an outside source), for generating
clock signals, and for producing output signals 101; a decoder 300
for receiving brightness/chromatic signals (Y/C) from an outside
source so as to convert the brightness/chromatic signals to digital
signals 301 in response to second control signals 204 (from an
outside source); a frame rate converter 400 for receiving the
output signals 101 from the signal converter/clock generator 100,
for receiving the digital signals 301 from the decoder 300, for
storing R-G-B signals in response to third control signals 206
(from an outside source), for converting the R-G-B signals (thus
stored) so as to have a certain frequency ratio corresponding to
display characteristics of a display panel 1100, and for generating
an output 401; a frame memory 500 for storing the R-G-B signals for
the signal converter/clock generator 100 under the control of the
frame rate converter 400; an OSD (on-screen display) generator 700
for receiving horizontal/vertical synchronizing signals and clock
signals 601 from an outside source, and for outputting first R-G-B
signals 701 in response to OSD control signals 210 from a
controller 200; a pivot circuit 800 for receiving the first R-G-B
signals 701, for storing in a position-converting manner a write
address of the first R-G-B signals 701 in correspondence to a
pre-set pivot write address, and for converting the write address
in response to the horizontal/vertical synchronizing signals and
the clock signals so as to output second R-G-B signals 801; a scale
converter 600 for furnishing the horizontal/vertical synchronizing
signals and the clock signals 601 to the OSD generator 700 and the
pivot circuit 800, respectively, for converting scales of video
signals of the frame rate converter 400, and for receiving the
second R-G-B signals to convert scales of the second R-G-B signals
801 of the pivot circuit 800 in response to scale control signals
208 from an outside source; a controller 200 for furnishing the
first, second and third control signals 202, 204 and 206,
respectively, to the signal converting/clock generator 100, the
decoder 300 and frame rate converter 400, respectively, for
furnishing OSD control signals 210 and scale control signals 208 to
the OSD generator 700 and to the scale converter 600, respectively,
in response to OSD driving signals (generated by the user), and for
furnishing pivot control signals 212 to the pivot circuit 800 in
response to mode control signals (generated by the user); and a
panel driver 900 for receiving the R-G-B signals 602 from the scale
converter 600 and furnishing driving signals 901 to the display
panel 1100.
Referring to FIG. 4, the pivot circuit 800 includes: a B-pivot
circuit 800a for receiving B-data signals OSD-B of the first R-G-B
signals 701 from the OSD generator 700, for storing in a
position-converting manner a write address of the B-data signals
OSD-B in correspondence with a pre-set pivot write address in
response to pivot control signals 212, and for converting the write
address in response to the horizontal/vertical synchronizing
signals and clock signals 601 so as to output the stored B-data
signals OSD-B in the form of B-data signals B of the second R-G-B
signals 801; a G-pivot circuit 800b for receiving G-data signals
OSD-G of the first R-G-B signals 701 from the OSD generator 700,
for storing in a position-converting manner a write address of the
G-data signals OSD-G in correspondence with a pre-set pivot write
address in response to pivot control signals 212, and for
converting the write address in response to the horizontal/vertical
synchronizing signals and clock signals 601 so as to output the
stored G-data signals OSD-G in the form of G-data signals G of the
second R-G-B signals 801; and an R-pivot circuit 800c for receiving
R-data signals OSD-R of the first R-G-B signals 701 from the OSD
generator 700, for storing in a position-converting manner a write
address of the R-data signals OSD-R in correspondence with a
pre-set pivot write address in response to pivot control signals
212, and for converting the write address in response to the
horizontal/vertical synchronizing signals and clock signals 601 so
as to output the stored R-data signals OSD-R in the form of R-data
signals R of the second R-G-B signals 801.
Referring to FIG. 5, the B, G and R-pivot circuits 800a, 800b and
800c, respectively, have the same composition.
The B-pivot circuit 800a includes: an analog/digital converter 810
for receiving the B-data signals of the first R-G-B signals 701
from the OSD generator 700 so as to convert them to digital
signals; a buffering section 820 for receiving and storing the
digital B-data signals from the analog/digital converter 810, and
for outputting previous B-data signals upon receiving next B-data
signals from the analog/digital converter 810; a pivot controller
840 for outputting storing position control signals 841 and data
selection control signals 842 in response to pivot control signals
212 from the controller 200; a data storing section 830 for
receiving and storing the B-data signals of the buffering section
820, and for storing in a position-converting manner a write
address of the B-data signals of the buffering section 820 in
correspondence with a pre-set pivot write address in response to
store position control signals 841; and a data selector 850 for
receiving the B-data signals of the first R-G-B signals 701 or the
B-data signals of the data storing section 830 so as to output the
B-data signals of the first R-G-B signals 701 or the B-data signals
of the data storing section 830 in the form of second R-G-B signals
801.
Under this condition, the buffering section 820 of the B-pivot
circuit 800a includes eight buffers 820a, 820b, 820c, 820d, 820e,
820f, 820g and 820h for storing the 8-bit data of the
analog/digital converter 810.
The compositions of the G-pivot circuit 800b and the R-pivot
circuit 800c, respectively, are the same as that of the B-pivot
circuit 800a. Further, the buffering sections of the G-pivot
circuit 800b and the R-pivot circuit 800c, respectively, are the
same as that of the B-pivot circuit 800a.
Now the operation of the video display apparatus with an on-screen
display pivoting function according to the present invention will
be described.
FIGS. 6 and 7 illustrate data maps which are stored in the case
where the on-screen display pivoting function of the invention is
not utilized. FIGS. 8 and 9 illustrate data maps which are stored
in the case where the on-screen display pivoting function of the
invention is utilized. FIG. 10 illustrates the on-screen display
displayed in the normal manner in the video display apparatus with
an on-screen display pivoting function according to the present
invention.
The case where the user does not turn .[.the.]. .Iadd.a
.Iaddend.screen body .[.11.]. .Iadd.1101 .Iaddend.is the same as
the conventional case and, therefore, the operation of this case
will be omitted. The case where the user turns the screen body
.[.11.]. .Iadd.1101 .Iaddend.clockwise by 90 degrees will be
described.
Further, the operations of the components of the pivot circuit 800
will be described with reference to the B-pivot circuit 800a,
because the operations of the G and R-pivot circuits 800b and 800c,
respectively, are the same as that of the B-pivot circuit 800a.
First, referring to FIG. 3, the signal converter/clock generator
100 converts the incoming R-G-B signals to digital signals in
response to the first control signals 202 of the controller 200.
Further, the generator 100 generates clock signals 101 in response
to the horizontal/vertical synchronizing signals so as to meet the
operation criteria for the video display apparatus according to the
present invention.
The decoder 300 converts the brightness/chromatic signals to
digital signals 301 in response to the second control signals 204
of the controller 200.
The frame rate converter 400 writes the digital R-G-B signals of
the signal converter/clock generator 100 into the frame memory 500.
Then, the frame rate converter 400 sequentially reads them for
conversion so as to have a certain frequency ratio corresponding to
the characteristics of the display panel 1100.
Then, if the user supplies the OSD driving signal to the controller
200 by manipulating a particular key of the key pad 1105 (see FIG.
10) of the display panel 1100 to use an on-screen display 1104,
then the controller 200 supplies an OSD control signal 210 to the
OSD generator 700 in response to the user's OSD driving signal.
The OSD generator 700 supplies the first R-G-B signals 701 to the
analog/digital converter 810 of the pivot circuit 800 in response
to the OSD control signal 210.
Under this condition, the display panel 1100 has been turned by 90
degrees clockwise and, therefore, the user has to supply a mode
control signal to the controller 200 by pressing another particular
key of the key pad 1105 so that an on-screen display 1104 suitable
for the turned status of the display panel 1100 will be
displayed.
If the user does not manipulate the particular key to generate the
mode control signal, then the on-screen display will be displayed
with the letters and figures laid on their side as seen in FIG.
2.
Conversely, if the mode control signal is generated by the
manipulation of the key by the user, then the controller 200
supplies a pivot control signal 212 to the pivot circuit 800 so as
to display an on-screen display suitable to the turned status of
the display panel 1100.
Then, the analog/digital circuit 810 of the B-pivot circuit 800a of
the pivot circuit 800 sequentially receives the B data signals of
the first R-G-B signals 701.
The first to eighth buffers 820a, . . . , 820h, respectively, of
the buffering section 820 store the B data signals of the
analog/digital circuit 810. Then, when the next B data signals are
inputted, the preceding 8-bit B data signals are outputted.
That is, if the alphabet character "A" of FIG. 7 is taken as an
example, the B data signals of the alphabet character "A" are
supplied to the buffering section 820, starting from the first
column C1 in the order of "00000000", "00111100", 00100100",
"00100100", "00111100", "00100100", "00100100" and "00000000".
Under this condition, the G and R data signals of the alphabet
character "A" are supplied in the same manner.
Then, the pivot controller 840 supplies the store position control
signals 841 and the data selection control signals 842 to the data
memory 830 and the data selector 850, respectively.
The data memory 830 then receives the B data signals of the
alphabet character "A" from the first to eighth buffers 820a, . . .
,820h, respectively, of the buffering section 820 so as to store
them.
However, the data memory 830 stores in a position-converting manner
the storing address of the B data signals of the alphabet character
"A" (which are inputted from the first to eighth buffers of the
buffering section 820) in response to the storing position control
signals of the pivot controller 840.
That is, the B data signals "00000000" which correspond to the
first column C1, and which are first outputted from the buffering
section 820, are stored in the first storing positions of the
respective columns C1, C2, C3, C4, C5, C6, C7 and C8 of the
alphabet character "A" of FIG. 8, that is, in the storing positions
of the first row R1.
The B data signals "00111100" corresponding to the second column C2
for the alphabet character "A" of FIG. 7, which are outputted next,
are stored in the second storing positions of the respective
columns C1, C2, C3, C4, C5, C6, C7 and C8 for the alphabet
character "A" of FIG. 8, that is, in the second row R2.
Through this procedure, when the B data signals "00000000"
corresponding to the eighth column C8 for the alphabet character
"A" of FIG. 7 are stored in the eighth positions of the respective
columns C1, C2, C3, C4, C5, C6, C7 and C8, that is, when they are
stored in the eighth row R8, the storing of the B data signals for
the alphabet character "A" is completed.
The G and R data signals of the alphabet character "A" are stored
in the data memory 830 through the same procedure as that of the B
data signals. Further, alphabet characters "B", "C" and "D" of FIG.
7 are also stored in data memory 830 through the same
procedure.
Then, the data selector 850 receives, from the OSD generator 700,
the B data signals of the first R-G-B signal 701 which have not
been converted in accordance with pivoting. Further, the data
selector 850 receives, from the data memory 830, the B data signals
of the first R-G-B signals 701 which have been converted in
accordance with pivoting.
The data selector 850 selects one set of the B data signals from
among the B data signals of the converted first R-G-B signals 701
and the non-converted first R-G-B signals 701 so as to supply them,
in the form of second R-G-B signals 801, to the scale converter
600.
Under this condition, the display panel 1100 has been turned, and a
mode control signal has been generated by the user. Therefore, the
data selection control signal 842 is supplied as a signal showing
the pivot enable status.
Accordingly, the data selector 850 supplies the B data signals of
the converted (converted in accordance with pivoting) first R-G-B
signals 701 to the scale converter 600 as second R-G-B signals
801.
The scale converter 600 receives the second R-G-B signals 801 from
the B, G and R-pivot circuits 800a, 800b and 800c of the pivot
circuit 800.
The scale converter 600 converts the second R-G-B signals 801 in
response to the scale control signals 208 from the controller
200.
Then, if the second R-G-B signals 602 which have been
scale-converted by the scale converter 600 are outputted, the panel
driver 900 receives the second R-G-B signals 602 of the scale
converter 600 and provides a driving signal 901 to the display
panel 1100 so as to drive the display panel 1100.
The display panel 1100 receive power from the power supply 1000,
and receives the second R-G-B signals from the panel driver 900.
Further, the display panel 1100 displays the second R-G-B signals
on the screen in the form of an on-screen display in response to
the driving signal 901 of the panel driver 900.
In this manner, if the user has turned the display panel 1100 by 90
degrees clockwise, the R-G-B signals of the on-screen display are
displayed after being pivoted and, therefore, the letters and
figures of the on-screen display 1104 are displayed .Iadd.on a
screen 1103 of the screen body 1101 of the display panel 1100
.Iaddend.in the normal manner as seen by the user. This is
illustrated in FIG. 10.
According to the present invention as described above, even in the
case where the user turns the screen body by 90 degrees for the
sake of convenience, the letters and figures of the on-screen
display are displayed in the normal manner as viewed by the
user.
Therefore, the user can use the on-screen display in a convenient
manner, regardless of the turning or non-turning of the screen
body. Further, even in the case where the chromatic signals and
synchronizing signals are synthetically inputted instead of the
first and second R-G-B signals, the same pivoting function is
carried out.
In the above, the present invention was described based on the
specific preferred embodiment, but it should be apparent to those
ordinarily skilled in the art that various changes and
modifications can be added without departing from the spirit and
scope of the present invention, which are defined in the appended
claims.
* * * * *