Curved liquid crystal display device

Patent metadata

Field	Value
Publication number	US-9274362-B2
Application number	US-201414356385-A
Country	US
Kind code	B2
Filing date	Apr 3, 2014
Priority date	Mar 21, 2014
Publication date	Mar 1, 2016
Grant date	Mar 1, 2016

Abstract

The present invention provides a curved liquid crystal display device, which includes: a backlight module ( 2 ), a mold frame ( 4 ), a liquid crystal display panel ( 6 ), and a front bezel ( 8 ). The backlight module ( 2 ) includes a backplane ( 22 ), a curved light guide plate ( 24 ) arranged in the backplane ( 22 ), a backlight source ( 26 ) arranged in the backplane ( 22 ), and a heat dissipation board ( 28 ) receiving the backlight source ( 26 ) mounted thereto. The heat dissipation board ( 28 ) includes a bracket section ( 282 ) and a mount section ( 284 ) connected, in an inclined manner, to the bracket section ( 282 ). The bracket section ( 282 ) is mounted to the backplane ( 22 ). The backlight source ( 26 ) is mounted to the mount section ( 284 ). The front bezel ( 8 ) includes a front plate ( 82 ) and a side plate ( 84 ) connected to the front plate ( 82 ). The side plate ( 84 ) includes a coupling section ( 842 ) projecting toward the mount section ( 284 ). The coupling section ( 842 ) is coupled to the mount section ( 284 ) so as to couple the front bezel ( 8 ) and the heat dissipation board ( 28 ) together.

First claim

What is claimed is:

1. A curved liquid crystal display device, comprising: a backlight module, a mold frame mounted on the backlight module, a liquid crystal display panel arranged on the mold frame, and a front bezel arranged on the liquid crystal display panel, the backlight module comprising a backplane, a curved light guide plate arranged in the backplane, a backlight source arranged in the backplane, and a heat dissipation board receiving the backlight source mounted thereon, the heat dissipation board comprising a bracket section and a mount section that is connected, in an inclined manner, to the bracket section, the bracket section being mounted to the backplane, the backlight source being mounted to the mount section, the front bezel comprising a front plate and a side plate connected to the front plate and inclined with respect to the mount section of the heat dissipation board with a gap having a wedge-shaped cross section defined between the side plate and the mount section, the side plate comprising an inside surface facing an outside surface of the mount section of the heat dissipation board and a coupling section that is raised from the inside surface and projects towards the outside surface of the mount section to define an end face that is spaced from the inside surface of the side plate and corresponds to and is in contact engagement with the outside surface of the mount section, the coupling section being coupled to the mount section through the end face in surface contact with the outside surface of the mount section so as to couple the front bezel and the heat dissipation board together.

2. The curved liquid crystal display device as claimed in claim 1 , wherein the coupling section of the side plate comprises a through hole formed therein and the mount section of the heat dissipation board comprises a threaded hole formed therein to correspond to the through hole, a screw being received through the through hole to engage the threaded hole so as to fix the front bezel and the heat dissipation board to each other.

3. The curved liquid crystal display device as claimed in claim 1 , wherein the mount section supports the mold frame thereon.

4. The curved liquid crystal display device as claimed in claim 3 , wherein the mold frame has an end section positioned against an outer side of the mount section that is opposite to the backlight source and located beside the coupling section.

5. The curved liquid crystal display device as claimed in claim 1 , wherein the backlight source is mounted to the mount section to correspond to a light incidence surface of the curved light guide plate.

6. The curved liquid crystal display device as claimed in claim 1 , wherein the backlight module comprises a bottom reflector plate arranged on a bottom surface of the curved light guide plate that faces the backplane and an optical film assembly arranged above the curved light guide plate and located in the mold frame.

7. The curved liquid crystal display device as claimed in claim 1 , wherein the backplane is made of a steel plate.

8. The curved liquid crystal display device as claimed in claim 7 , wherein the steel plate has a thickness of 0.8-1 mm.

9. The curved liquid crystal display device as claimed in claim 1 , wherein the heat dissipation board is made of an aluminum plate.

10. A curved liquid crystal display device, comprising: a backlight module, a mold frame mounted on the backlight module, a liquid crystal display panel arranged on the mold frame, and a front bezel arranged on the liquid crystal display panel, the backlight module comprising a backplane, a curved light guide plate arranged in the backplane, a backlight source arranged in the backplane, and a heat dissipation board receiving the backlight source mounted thereon, the heat dissipation board comprising a bracket section and a mount section that is connected, in an inclined manner, to the bracket section, the bracket section being mounted to the backplane, the backlight source being mounted to the mount section, the front bezel comprising a front plate and a side plate connected to the front plate and inclined with respect to the mount section of the heat dissipation board with a gap having a wedge-shaped cross section defined between the side plate and the mount section, the side plate comprising an inside surface facing an outside surface of the mount section of the heat dissipation board and a coupling section that is raised from the inside surface and projects towards the outside surface of the mount section to define an end face that is spaced from the inside surface of the side plate and corresponds to and is in contact engagement with the outside surface of the mount section, the coupling section being coupled to the mount section through the end face in surface contact with the outside surface of the mount section so as to couple the front bezel and the heat dissipation board together;
wherein the coupling section of the side plate comprises a through hole formed therein and the mount section of the heat dissipation board comprises a threaded hole formed therein to correspond to the through hole, a screw being received through the through hole to engage the threaded hole so as to fix the front bezel and the heat dissipation board to each other;
wherein the mount section supports the mold frame thereon;
wherein the mold frame has an end section positioned against an outer side of the mount section that is opposite to the backlight source and located beside the coupling section; and
wherein the backlight source is mounted to the mount section to correspond to a light incidence surface of the curved light guide plate.

11. The curved liquid crystal display device as claimed in claim 10 , wherein the backlight module comprises a bottom reflector plate arranged on a bottom surface of the curved light guide plate that faces the backplane and an optical film assembly arranged above the curved light guide plate and located in the mold frame.

12. The curved liquid crystal display device as claimed in claim 10 , wherein the backplane is made of a steel plate.

13. The curved liquid crystal display device as claimed in claim 12 , wherein the steel plate has a thickness of 0.8-1 mm.

14. The curved liquid crystal display device as claimed in claim 10 , wherein the heat dissipation board is made of an aluminum plate.

Assignees

• Shenzhen China Star Optoelect
• Shenzhen China Star Optoelect

Inventors

• Hsiao Yuchun
• Yu Gang
• Li Jiaxin
• Li Quan

Classifications

• G02F2001/133628

  Physics · mapped topic

• G02F1/1336

  Illuminating devices · CPC title

• G02B6/0091

  of the light source relative to the light guide (G02B6/0021 takes precedence) · CPC title

• G02B6/005

  provided by one optical element, or plurality thereof, placed on the light output side of the light guide · CPC title

• G02F1/133308 Primary

  Support structures for LCD panels, e.g. frames or bezels · CPC title