IP Library Granted Patent US 8,477,264
Granted Patent B2
US 8,477,264 · App. 13/300,332 · Granted Jul 2, 2013

Liquid crystal module and liquid crystal display device

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Quick Facts
Patent No.
US 8,477,264
App. No.
13/300,332
Granted
Jul 2, 2013
Kind
B2
Abstract

According to one embodiment, a liquid crystal module includes a transmissive liquid crystal cell, a light source device, a light guide plate and a frame. The light source device includes a plurality of light-emitting elements arranged in a row on a board. The light guide plate includes a light incidence surface on which light emitted from the light source device enters and a light exit surface from which light that has entered the light guide plate through the light incidence surface is output. The frame is configured to hold a peripheral portion of the liquid crystal cell and the light source device and to comprise a first projection projecting from a position close to the light source device toward the light guide plate.

Claims (57)

1. A liquid crystal module comprising:

a transmissive liquid crystal cell;

a board included

a plurality of light-emitting elements arranged in a row in a longitudinal direction thereof, and

a slit arranged in the vicinity of the light-emitting elements;

a light guide plate compromising

a light incidence surface on which light emitted from the light-emitting elements; enter, and

a light exit surface from which the light that has entered through the light incident surface is output,

a frame including a projection

that is inserted into the slit to protrude in a direction of the light guide plate, and

that is provided with a light reflection sheet on a surface, opposed to the light-emitting elements, thereof,

the frame configured to hold a peripheral portion of the liquid crystal cell and the board.

2. The liquid crystal module of claim 1 , wherein the surface, opposed to the light-emitting elements, of the projection is located within a thickness of the light incidence surface of the light guide plate.

3. The liquid crystal module of claim 1 , wherein the projection is located at such a position that a tip of the projection is in contact with or close to the light guide plate.

4. The liquid crystal module of claim 2 , wherein the projection is located at such a position that a tip of the projection is in contact with or close to the light guide plate

5. The liquid crystal module according to claim 1 , wherein

the slit is one of a plurality of slits arranged in parallel to the light emitting elements, and

the projection is one of a plurality of projections that protrude from the board in a direction of the light guide plate through the plurality of slits.

6. The liquid crystal module according to claim 2 , wherein

the slit is one of a plurality of slits arranged in parallel to the light emitting elements, and

the projection is one of a plurality of projections that protrude from the board in a direction of the light guide plate through the plurality of slits.

7. The liquid crystal module according to claim 3 , wherein

the slit is one of a plurality of slits arranged in parallel to the light emitting elements, and

the projection is one of a plurality of projections that protrude from the board in a direction of the light guide plate through the plurality of slits.

8. The liquid crystal module according to claim 4 , wherein

the slit is one of a plurality of slits arranged in parallel to the light emitting elements, and

the projection is one of a plurality of projections that protrude from the board in a direction of the light guide plate through the plurality of slits.

9. The liquid crystal according to claim 5 , wherein the board comprises interconnections is regions other than the plurality of slits.

10. The liquid crystal module according to claim 1 , wherein the frame compromises a liquid crystal cell holding projection configured to hold the peripheral portion of the liquid crystal cell, at a position that is closer to the liquid crystal cell than the projection.

11. A liquid crystal display device comprising:

a transmissive liquid crystal cell;

a board including

a plurality of light-emitting elements arranged in a row in a longitudinal direction thereof and

a slit arranged in the vicinity of the light-emitting elements;

a light guide plate comprising

a light incidence surface on which light emitted from the light-emitting elements enter, and

a light exit surface from which the light that has entered trough the light incidence surface is output,

a frame including a projection

that is inserted into she slit to protrude in a direction of the light guide plate, and

that is provided with a light reflection sheet on a surface, opposed to the light-emitting elements, thereof

the frame configured to hold a peripheral portion of the liquid crystal cell and the board.

12. The liquid crystal display device according to claim 11 , wherein the surface, opposed to the light-emitting elements, of the projection is located within a thickness of the light incidence surface of the light guide plate.

13. The liquid crystal display device according to claim 11 , wherein the projection is located at such a position that a tip of the projection is in contact with or close to the light guide plate.

14. The liquid crystal device according to claim 12 , wherein the projection is located at such a position that a tip of the projection is in contact with or close to the light guide plate.

15. The liquid crystal display device according to claim 11 , wherein the slit is one of a plurality of slits arranged in parallel to the light emitting elements, and

the projection is one of a plurality of projections that protrude from the board in a direction of the light guide plate through the plurality of slits.

16. The liquid crystal display device according to claim 12 , wherein

the slits is one of a plurality of slits arranged parallel to the light emitting elements, and pg, 14

the projection is once of a plurality of projections that protrude from the board in a direction of the light guide plate through the plurality of slits.

17. The liquid crystal device according to claim 13 , wherein

the slit is one of a plurality of slits arranged in parallel to the light emitting element, and

the projection is one of a plurality of projections that protrude from the board in a direction of the light guide plate through the of slits.

18. The liquid crystal display device according to claim 14 , wherein

the slit is one of a plurality of slits arranged in parallel to the light emitting elements, and

the projection is one of a plurality of projections that protrude from the board in a direction of the light guide plate through the plurality of slits.

19. The liquid crystal display device according to claim 15 , wherein the board compromises interconnections in regions other than the plurality of slits.

20. the liquid crystal display device according to claim 11 , wherein the frame compromises a liquid crystal cell holding projection configured to hold the peripheral portion of the liquid crystal cell, at a position that is closer to the liquid crystal cell than the projection.

Assignments (5)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 7, 2020
From: TOSHIBA VISUAL SOLUTIONS CORPORATION
To: HISENSE VISUAL TECHNOLOGY CO., LTD.
Reel/Frame 051493/0333 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 26, 2018
From: KABUSHIKI KAISHA TOSHIBA
To: TOSHIBA VISUAL SOLUTIONS CORPORATION
Reel/Frame 046881/0120 →
ASSIGNMENT OF PARTIAL RIGHTS Recorded Oct 21, 2016
From: KABUSHIKI KAISHA TOSHIBA
To: TOSHIBA LIFESTYLE PRODUCTS & SERVICES CORPORATION
Reel/Frame 040458/0840 →
CORPORATE SPLIT Recorded Oct 21, 2016
From: TOSHIBA LIFESTYLE PRODUCTS & SERVICES CORPORATION
To: TOSHIBA VISUAL SOLUTIONS CORPORATION
Reel/Frame 040458/0859 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 18, 2011
From: MORITO, YOSHIHIRO
To: KABUSHIKI KAISHA TOSHIBA
Reel/Frame 027259/0840 →