Backlight module and display device

Patent metadata

Field	Value
Publication number	US-10018773-B2
Application number	US-201515121405-A
Country	US
Kind code	B2
Filing date	May 29, 2015
Priority date	Dec 24, 2014
Publication date	Jul 10, 2018
Grant date	Jul 10, 2018

Abstract

A backlight module includes: a first frame having a first portion parallel to the display substrate; and a first light shielding structure provided between the first portion and the display substrate, wherein a vertical projection of the first light shielding structure on a plane in which the display substrate is located at least partially overlaps with at least one substrate light shielding structure adjacent to an edge of the display substrate. An embodiment of the present invention further provides a display device including the backlight module described above.

First claim

What is claimed is:

1. A backlight module for a display substrate, comprising:
a first frame having a first portion parallel to the display substrate; and
a first light shielding structure provided between the first portion and the display substrate,
wherein a vertical projection of the first light shielding structure on a plane in which the display substrate is located at least partially overlaps with at least one substrate light shielding structure adjacent to an edge of the display substrate,
wherein the first is an adhesive frame;
wherein an attaching reference is disposed on a side of the first portion adjacent to the display substrate; and
wherein the first light shielding structure extends from the attaching reference in a direction toward vicinity of the center of the backlight module.

2. The backlight module according to claim 1 ,
wherein a material for forming the first light shielding structure comprises rubber.

3. The backlight module according to claim 1 ,
wherein the substrate light shielding structure comprises a black matrix on the display substrate.

4. The backlight module according to claim 1 ,
wherein a width of the overlapped area is greater than or equal to 1 mm.

5. The backlight module according to claim 1 ,
wherein an edge of the first light shielding structure on its side away from center of the backlight module is aligned with an edge of the display substrate or extends beyond the edge of the display substrate.

6. The backlight module according to claim 1 ,
wherein the attaching reference is a strip-like protrusion.

7. The backlight module according to claim 1 , further comprising:
a light guide plate,
wherein the first frame further comprises a second portion that vertically extends from an end of the first portion in a direction toward vicinity of the light guide plate and that is connected to the light guide plate by a connecting structure.

8. A display device, comprising:
a display substrate; and
a backlight module according to claim 1 .

9. The display device according to claim 8 , further comprising:
an array substrate provided opposite to the display substrate,
wherein a peripheral area of the array substrate is provided with a binding area that is covered with a second light shielding structure.

10. The display device according to claim 9 ,
wherein the second light shielding structure comprises a black UV-curable adhesive.

11. The display device according to claim 10 ,
wherein the second light shielding structure adjoins an edge of the display substrate.

12. The display device according to claim 11 , further comprising:
a flexible circuit board that is electrically connected to binding wires in the binding area,
wherein the second light shielding structure covers an edge of the flexible circuit board.

13. The display device according to claim 12 ,
wherein a width of the second light shielding structure is 1.0 mm-1.5 mm.

14. The display device according to claim 8 ,
wherein the at least one substrate light shielding structure extends to the edge of the display substrate.

15. The backlight module according to claim 4 ,
wherein a material for forming the first light shielding structure comprises rubber.

16. The backlight module according to claim 4 ,
wherein the substrate light shielding structure comprises a black matrix on the display substrate.

17. The backlight module according to claim 5 ,
wherein a material for forming the first light shielding structure comprises rubber.

18. The backlight module according to claim 5 ,
wherein the substrate light shielding structure comprises a black matrix on the display substrate.

19. The backlight module according to claim 5 ,
wherein a width of the overlapped area is greater than or equal to 1 mm.

Assignees

• Boe Technology Group Co Ltd
• Hefei Xinsheng Optoelectronics Technology Co Ltd

Inventors

• Li Yanping
• Qian Zhiyu
• Zhang Zhengyuan
• Jiang Yiqiang
• Sun Yong

Classifications

• G02B6/0088 Primary

  of the light guide or other optical sheets in the package · CPC title

• G02F1/133608

  including particular frames or supporting means · CPC title

• F21V1/00

  Shades for light sources {, i.e. lampshades for table, floor, wall or ceiling lamps} · CPC title

• G02F1/133615

  Edge-illuminating devices, i.e. illuminating from the side · CPC title

• F21V17/10

  characterised by specific fastening means or way of fastening (F21V17/02 - F21V17/08 take precedence) · CPC title