U.S. patent application number 10/418980 was filed with the patent office on 2004-10-21 for straight down-type backlight module assembly structure.
Invention is credited to Kuo, Heng Huang.
Application Number | 20040208003 10/418980 |
Document ID | / |
Family ID | 33159238 |
Filed Date | 2004-10-21 |
United States Patent
Application |
20040208003 |
Kind Code |
A1 |
Kuo, Heng Huang |
October 21, 2004 |
STRAIGHT DOWN-TYPE BACKLIGHT MODULE ASSEMBLY STRUCTURE
Abstract
An improved straight down-type backlight module assembly
structure is described. A groove is disposed in a base in a
position that facilitates detachment. The groove is used to receive
a light-emitting component. When the light-emitting component is to
be maintained or replaced, it is not necessary to make many
unnecessary detachment actions, hence facilitating detachment and
maintenance of the light-emitting component.
Inventors: |
Kuo, Heng Huang; (Taipei,
TW) |
Correspondence
Address: |
HENG HUANG KUO
P.O. BOX 26-757
TAIPEI
TW
|
Family ID: |
33159238 |
Appl. No.: |
10/418980 |
Filed: |
April 18, 2003 |
Current U.S.
Class: |
362/241 ;
362/307; 362/560 |
Current CPC
Class: |
F21Y 2103/00 20130101;
G02B 6/0031 20130101; F21Y 2115/10 20160801; G02B 6/0046 20130101;
G02B 6/0013 20130101; G02B 6/0068 20130101; G02B 6/0021
20130101 |
Class at
Publication: |
362/241 ;
362/560; 362/307 |
International
Class: |
F21V 007/05 |
Claims
I claim:
1. An improved straight down-type backlight module assembly
structure, comprising: a base with a rectangular groove disposed at
a center thereof, two sides of said groove having inclines tilting
upwards from the center of said base, a first reflecting component
and a light guiding component being disposed in order on said
inclines; a light-emitting component disposed in said groove; and a
rectangular movable base with a second reflecting component
disposed thereon, said movable base being disposed at a backside of
said groove to receive said light-emitting component in said base,
upper and lower ends of said movable base being fixedly retained at
upper and lower sides of said base; whereby said light-emitting
component is disposed on said base in detachable way.
2. The improved straight down-type backlight module assembly
structure as claimed in claim 1, wherein said base and said movable
base are both made of a metal having good heat-radiating
characteristic.
3. The improved straight down-type backlight module assembly
structure as claimed in claim 1, wherein said light-emitting
component is a cold cathode fluorescent lamp or a light-emitting
diode.
4. The improved straight down-type backlight module assembly
structure as claimed in claim 1, wherein said first reflecting
component and said second reflecting component are disposed on said
inclines or said movable base by means of flat adhesion or
electroplating.
5. The improved straight down-type backlight module assembly
structure as claimed in claim 1, wherein said base and said movable
base are both integrally formed, said first reflecting component is
disposed on said base, and said light-emitting component is
directly disposed on said first reflecting component.
6. The improved straight down-type backlight module assembly
structure as claimed in claim 1, wherein said inclines of said base
are arc-shaped, said light guiding component disposed on said first
reflecting component is a rectangular plate, and said
light-emitting component penetrates said groove to be disposed in
said base.
7. The improved straight down-type backlight module assembly
structure as claimed in claim 1, wherein said inclines of said base
are V-shaped, said light guiding component disposed on said first
reflecting component is also V-shaped, and a rectangular receiving
space is disposed at an inside of said light guiding component and
corresponding to the center of said groove to receive said
light-emitting component therein.
8. The improved straight down-type backlight module assembly
structure as claimed in claim 1, wherein said base forms continuous
V shapes and said light guiding component also forms continuous V
shapes for simultaneous installation of many sets of said
light-emitting component and said movable base.
Description
FIELD OF THE INVENTION
[0001] The present invention relates to an improved straight
down-type backlight module assembly structure and, more
particularly, to an improved straight down-type backlight module
assembly structure, which has a groove for firm installation and
convenient replacement of a light-emitting component.
BACKGROUND OF THE INVENTION
[0002] In a conventional, straight down-type backlight module, the
light-emitting component thereof is disposed in a position on a
base that makes detachment thereof difficult. If the light-emitting
component is to be maintained or replaced, it is necessary to
detach many unnecessary components, hence wasting much time and
easily causing contamination of internal components by dust and
unwanted impact and abrasion during detachment. Moreover, because
the base is generally made of plastic, if the light-emitting
component is disposed in the base, the problem of damaging heat
radiation may arise to affect the lifetime of use of the
light-emitting component.
[0003] FIG. 1 shows a conventional, straight down-type backlight
module, wherein a base 60 is made of plastic material. The base 60
is a rectangle, whose inside is an arc plane 61. An arc-shaped
first reflecting component 62 sticks onto the arc plane 61. A
light-emitting component 63 is disposed in the base 60. Two top
ends of the arc plane 61 connect to a rectangular diffusion plate
64. Second rectangular reflecting components 65 stick onto end
faces of two short sides of the diffusion plate 64, respectively. A
conventional, straight down-type backlight module is thus
formed.
[0004] Because the light-emitting component 63 is disposed in the
base 60, if it is to be maintained or replaced, it is necessary to
perform many unnecessary detachment steps from outside to inside.
Moreover, during detachment, dusts may contaminate internal
components or unwanted impact of other components may occur.
Besides, because the light-emitting component 63 is disposed in the
base 60 made of plastic, the problem of damaging heat radiation may
arise to reduce the lifetime of use of the light-emitting
component.
[0005] Accordingly, the conventional, straight down-type backlight
module has inconveniences and drawbacks in practical use. The
present invention aims to solve the problems in the prior art.
SUMMARY OF THE INVENTION
[0006] The primary object of the present invention is to solve the
problems such as time-consuming and difficult maintenance and
replacement of the light-emitting component, unwanted impact and
abrasion during detachment, contamination of internal components by
dusts, and the reduced lifetime of use of the light-emitting
component due to damaging heat radiation as occur in a
conventional, straight down-type backlight module.
[0007] To achieve the above object, the present invention provides
an improved straight down-type backlight module assembly structure,
which comprises a base and a movable base. A groove is disposed in
the middle of the base. Two sides of the base connect two short
sides of a light guiding component. A light-emitting component is
disposed on the movable base. The movable base covers over and is
retained outside the groove of the base.
BRIEF DESCRIPTION OF THE DRAWINGS
[0008] The various objects and advantages of the present invention
will be more readily understood from the following detailed
description when read in conjunction with the appended drawings, in
which:
[0009] FIG. 1 is a cross-sectional view of a conventional, straight
down-type backlight module;
[0010] FIG. 2 is an exploded perspective view of a first embodiment
of the present invention;
[0011] FIG. 3 is a cross-sectional view of the first embodiment of
the present invention;
[0012] FIG. 4 is an exploded cross-sectional partial view of the
first embodiment of the present invention;
[0013] FIG. 5 is a cross-sectional view of a second embodiment of
the present invention;
[0014] FIG. 6 is an exploded perspective view of a third embodiment
of the present invention;
[0015] FIG. 7 is a cross-sectional view of the third embodiment of
the present invention; and
[0016] FIG. 8 is an exploded cross-sectional partial view of a
fourth embodiment of the present invention.
DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS
[0017] FIG. 2 shows a first embodiment of the present invention,
which comprises a base 10 and a movable base 20. The base 10 is
rectangular, and is made of a metal having good heat-radiating
characteristic. A rectangular groove 1 is disposed in the middle of
the base 10. Two sides of the groove 11 have inclines 12 tilting
upwards from the center of the base 10. Two L-shaped first
reflecting components 13 stick onto the two inclines 12,
respectively. Or the first reflecting components 13 are directly
electroplated onto the inclines 12. Two sides of the base 10 firmly
connect two short sides of a V-shaped light guiding component 14. A
rectangular receiving space 15 is formed at the center of the
inside of the light-guiding component 14. Two outer short sides of
the light guiding component 14 have rectangular connection faces
16. Rectangular diffusion plates 17 stick onto the connection faces
16, respectively. A liquid crystal module 18 sticks onto the
outside of the diffusion plate 17.
[0018] The movable base 20 is a rectangle, and is made of metal
having good heat-radiating characteristic. A rectangular second
reflecting component 21 sticks onto the movable base 20, or the
second reflecting component 21 is disposed on the movable base 20
by means of electroplating. A light-emitting component 22 is
disposed on the second reflecting component 21. The light-emitting
component 22 is a cold cathode fluorescent lamp (CCFL) or a
light-emitting diode (LED). Leads are provided at two ends of the
light-emitting component 22 for providing the required
electricity.
[0019] Reference is made to FIGS. 2, 3 and 4. The movable base 20
is disposed at the backside of the groove 11, and the upper and
lower ends of the movable base 20 are fixedly retained at the upper
and lower sides of the base 10. The improved straight down-type
backlight module assembly structure is thus formed.
[0020] In this embodiment, the groove 11 is disposed in the base
10. The groove 11 is used to receive the light-emitting component
22 in the receiving space 15 so that the light-emitting component
22 is disposed on the base 10 in a detachable way. Therefore, if
the light-emitting component 22 is to be maintained or replaced, it
is only necessary to open the movable base 20 outside the groove 11
to take the light-emitting component 22 out of the receiving space
15, hence facilitating the maintenance and replacement work.
[0021] FIG. 5 shows a second embodiment of the present invention,
which differs from the first embodiment mainly in that one face of
the base 30 and the light guiding component 3 form continuous V
shapes. The primary object of this design is to simultaneously
install many sets of the movable base 20 and the light-emitting
component 22 for enhancing the brightness thereof.
[0022] FIGS. 6 and 7 show a third embodiment of the present
invention, which differs from the first embodiment mainly in that
the base 40 is arc-shaped, the first reflecting component 41 is
also an arc-shaped sheet, and a rectangular receiving groove 42 is
disposed at the center of the first reflecting component 41.
Besides, the light guiding component 43 is a rectangular plate. A
groove 11 is also disposed at the center of the base 40 for
installation and fastening of the movable base 20 having the
light-emitting component 22 disposed therein. Therefore, when
maintaining or replacing the light-emitting component 22, it is
only necessary to take the movable base 20 out from the groove 11
and then detach the light-emitting component 22.
[0023] FIG. 8 shows a fourth embodiment of the present invention,
which differs from the first embodiment mainly in that the base 101
is integrally formed without a groove 11, the first reflecting
component 131 is also integrally formed and sticks onto the base
101, and the light-emitting component 22 is firmly installed on the
first reflecting component 131. In this design, the movable base 20
is not required, hence simplifying the components and also
facilitating detachment and maintenance.
[0024] To sum up, in the present invention, a groove for receiving
a light-emitting component is disposed in a base. The
light-emitting component is disposed in a position easy for
detachment and near the outside of the base. Therefore, if the
light-emitting component is to be maintained or replaced, it is
only necessary to take the movable base out from the groove and
then detach the light-emitting component. This design can
facilitate detachment of the light-emitting component without
detaching many unnecessary components. Therefore, the problems of
time-consuming and difficult maintenance and replacement of the
light-emitting component, unwanted impact and abrasion during
detachment, contamination of internal components by dusts, and
damaging heat radiation to reduce the lifetime of use of the
light-emitting component as occur in a conventional, straight
down-type backlight module can be solved. Besides, because the
light-emitting component is disposed in the movable base and the
base both made of material having good heat-radiating
characteristic and near the outside, a better heat-radiating effect
can be accomplished, hence increasing the lifetime of use of the
light-emitting component.
[0025] Although the present invention has been described with
reference to the preferred embodiments thereof, it will be
understood that the invention is not limited to the details
thereof. Various substitutions and modifications have been
suggested in the foregoing description, and other will occur to
those of ordinary skill in the art. Therefore, all such
substitutions and modifications are intended to be embraced within
the scope of the invention as defined in the appended claims.
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