Liquid crystal module and curved surface display device

Patent metadata

Field	Value
Publication number	US-9715134-B2
Application number	US-201514894728-A
Country	US
Kind code	B2
Filing date	Jun 11, 2015
Priority date	Sep 26, 2014
Publication date	Jul 25, 2017
Grant date	Jul 25, 2017

Abstract

The invention provides a liquid crystal module and a curved surface display device. According to the liquid crystal module and the curved surface display device, a curved surface liquid crystal panel can be kept stable, and deformation of the curved surface liquid crystal panel is reduced. The liquid crystal module comprises the liquid crystal panel and a backlight source, wherein the backlight source comprises a light guiding plate. The light-emitting surface, facing the liquid crystal panel, of the light guiding plate is an inwards-concave arc-shaped curved surface, the liquid crystal panel is in an inwards-concave arc shape, and the liquid crystal panel is arranged on the light-emitting surface of the light guiding plate through a connecting member, wherein the curvature of the arc of the liquid crystal panel is the same as that of the light-emitting surface of the light guiding plate.

First claim

What is claimed is:

1. A liquid crystal module comprising:
a liquid crystal panel; and
a backlight source, the backlight source comprising a light guiding plate and a back plate on which a fixing structure for fixing the light guiding plate onto the back plate is arranged, wherein a light-emitting surface, facing the liquid crystal panel, of the light guiding plate is an inwards-concave arc-shaped curved surface, the liquid crystal panel is in an inwards-concave arc shape, the liquid crystal panel is arranged on the light-emitting surface of the light guiding plate, curvature of the arc of the liquid crystal panel is the same as that of the light-emitting surface of the light guiding plate, the fixing structure comprises a suction member fixed on the back plate, the suction member comprises a cavity having a suction opening facing a bottom surface of the light guiding plate, and when the bottom surface of the light guiding plate is joined to the cavity, air pressure within the cavity is lower than air pressure outside the cavity, such that the light guiding plate is fixed on the back plate through suction.

2. The liquid crystal module according to claim 1 , wherein, the liquid crystal panel is arranged on the light-emitting surface of the light guiding plate through a connecting member.

3. The liquid crystal module according to claim 2 , wherein, the connecting member is transparent adhesive.

4. The liquid crystal module according to claim 1 , wherein, the backlight source further comprises diffusion particles arranged on the light-emitting surface of the light guiding plate and used to diffuse light emitting the light-emitting surface of the light guiding plate.

5. The liquid crystal module according to claim 4 , wherein, the diffusion particles are arranged on the light-emitting surface of the light guiding plate by manner of coating.

6. The liquid crystal module according to claim 4 , wherein, the diffusion particles are formed on the light-emitting surface of the light guiding plate by manner of integrating with the light guiding plate as a whole.

7. The liquid crystal module according to claim 1 , wherein the bottom surface, opposite to the light-emitting surface, of the light guiding plate is a flat surface.

8. The liquid crystal module according to claim 1 , wherein the suction member is made from white plastic material.

9. The liquid crystal module according to claim 1 , wherein a reflection plate is arranged between the light guiding plate and the back plate, through holes are arranged on the reflection plate at positions corresponding to the suction member, and the suction member goes through the through holes.

10. The liquid crystal module according to claim 1 , wherein the backlight source further comprises a rubber frame, the light guiding plate is arranged on the back plate, the rubber frame is arranged around the back plate, the rubber frame comprises support portions onto which end portions of the liquid crystal panel are lap jointed, and the liquid crystal module further comprises a front frame arranged at periphery of the liquid crystal panel and used to fixedly connect the liquid crystal panel and the backlight source.

11. The liquid crystal module according to claim 10 , wherein, a straight slot is arranged on side wall of the rubber frame, bumps are arranged on the back plate at positions corresponding to the straight slot, the bumps are disposed in the straight slot.

12. A curved surface display device, comprising the liquid crystal module according to claim 1 .

13. The curved surface display device according to claim 12 , wherein, the liquid crystal panel is arranged on the light-emitting surface of the light guiding plate through a connecting member.

14. The curved surface display device according to claim 12 , wherein, the backlight source further comprises diffusion particles arranged on the light-emitting surface of the light guiding plate and used to diffuse light emitting the light-emitting surface of the light guiding plate.

15. The curved surface display device according to claim 12 , wherein, the bottom surface, opposite to the light-emitting surface, of the light guiding plate is a flat surface.

16. The curved surface display device according to claim 12 , wherein the backlight source further comprises a rubber frame, the light guiding plate is arranged on the back plate, the rubber frame is arranged around the back plate, the rubber frame comprises support portions onto which end portions of the liquid crystal panel are lap jointed, and the liquid crystal module further comprises a front frame arranged at periphery of the liquid crystal panel and used to fixedly connect the liquid crystal panel and the backlight source.

Assignees

• Boe Technology Group Co Ltd
• Beijing Boe Display Tech Co

Inventors

• Wang Fei
• Yuan Jing

Classifications

• G02B6/0055

  Reflecting element, sheet or layer · CPC title

• G02B6/0041 Primary

  provided in the bulk of the light guide · CPC title

• G02F2202/28

  Adhesive materials or arrangements · CPC title

• G02F1/133308 Primary

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

• G02B6/00

  Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings · CPC title