Backlight Module And Display Device

Patent metadata

Field	Value
Publication number	US-2016209705-A9
Application number	US-201313945599-A
Country	US
Kind code	A9
Filing date	Jul 18, 2013
Priority date	Aug 6, 2012
Publication date	Jul 21, 2016
Grant date	—

Abstract

Embodiments of the present invention provide a backlight module comprising a light source and a diffusion plate disposed immediately opposite a light exiting surface of the light source.

First claim

1 . A backlight module, comprising:
a light source; and a diffusion plate, disposed immediately opposite a light exiting surface of the light source.

2 . The backlight module according to claim 1 , wherein the backlight module further comprises a light source positioning groove, the light source disposed at a groove bottom of the light source positioning groove and the diffusion plate disposed at a groove opening of the light source positioning groove.

3 . The backlight module according to claim 2 , wherein the light source is a light emitting diode strip, a length direction of the light source being the same as a groove-length direction of the light source positioning groove.

4 . A display device, comprising:
a liquid crystal panel; and the backlight module according to claim 1 , wherein, in an expanded state, a light incident surface of the liquid crystal panel is disposed opposite a light exiting surface of the diffusion plate, and a predetermined diffusion distance is between the light incident surface of the liquid crystal panel and the light exiting surface of the diffusion plate, a panel surface size of the liquid crystal panel is substantially equivalent to the size of a light-radiating region of the backlight module at the panel surface of the liquid crystal panel.

5 . The display device according to claim 4 , wherein the backlight module is in a narrow strip shape, the backlight module further comprising a light source positioning groove having a length direction the same as a length direction of the backlight module, the light source disposed at a groove bottom of the light source positioning groove, and the diffusion plate disposed at a groove opening of the light source positioning groove.

6 . The display device according to claim 4 , further comprising:
two liquid crystal panel frames, disposed on both sides of the liquid crystal panel extending along the length direction of the backlight module.

7 . The display device according to claim 6 , further comprising a supporting member, wherein the supporting member is provided between each of the two liquid crystal panel frames and each of both sides of the light source positioning groove in a width direction, when the display device is in an expanded state.

8 . The display device according to claim 7 , wherein the supporting member comprises a front plate and a back plate, a first end of the front plate pivotally connected to one side of the light source positioning groove in the width direction, and a second end opposite the first end of the front plate detachably supported on one side facing the backlight module of the liquid crystal panel frame; a first end of the back plate pivotally connected to the other side of the light source positioning groove in the width direction, and a second end opposite the first end of the back plate pivotally connected to one side facing the backlight module of the corresponding liquid crystal panel frame.

9 . The display device according to claim 8 , wherein a distance between the two liquid crystal panel frames is less than that between the first end of the front plate and the second end of the front plate, and that between the first end of the back plate and the second end of the back plate.

Assignees

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

Inventors

• Deng Yi
• Sun Yanjun

Classifications

• G02B27/024

  comprising a light source, e.g. for viewing photographic slides, X-ray transparancies (G02B27/023, and photographic, cine and overhead projectors G03B21/00 and subgroups) · CPC title

• F21K9/60

  Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction · CPC title

• G02F1/133608

  including particular frames or supporting means · CPC title

• G02F1/133603 Primary

  with LEDs · CPC title

• G02B6/0011

  the light guides being planar or of plate-like form · CPC title