IP Library Granted Patent US 8,045,086
Granted Patent B2
US 8,045,086 · App. 11/645,645 · Granted Oct 25, 2011

Lamp guide with optical member holder and liquid crystal display device having the same

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Quick Facts
Patent No.
US 8,045,086
App. No.
11/645,645
Granted
Oct 25, 2011
Kind
B2
Abstract

A backlight unit having a decreased thickness includes at least one lamp which emits light; and at least one light-diffusion plate which diffuses the light emitted from the light, and is positioned above each lamp, wherein the lamp and the light-diffusion plate are fixed and supported by a lamp guide.

Claims (30)

1. A backlight unit comprising:

a plurality of lamps;

a plurality of light-diffusion plates for diffusing the light emitted from the lamp, each light-diffusing plate being positioned above each lamp; and

a plurality of lamp guides for fixing the lamps and the light-diffusing plates,

wherein the lamp guides correspond to the lamps and the light-diffusing plates so that each lamp guide fixes a corresponding lamp and light-diffusing plate.

2. The backlight unit of claim 1 , wherein the lamp is formed of CCFL or EEFL.

3. The backlight unit of claim 1 , wherein the lamp guide includes:

a base;

at least one lamp holder in the base to fix the lamp; and

at east one light-diffusion plate holder in the base to fix the light-diffusion plate.

4. The backlight unit of claim 3 , wherein a plurality of lamp guides are disposed in an extending direction of the lamp.

5. The backlight unit of claim 3 , wherein the light-diffusion plate holder is disposed above the lamp holder.

6. The backlight unit of claim 3 , wherein a plurality of the lamp holders and light-diffusion plate holders are disposed in the base to fix the plurality of adjacent lamps and light-diffusion plates.

7. The backlight unit of claim 1 , further comprising optical sheets above the light-diffusion plate.

8. The backlight unit of claim 7 , wherein the lamp guide includes at least one supporter for supporting the optical sheets.

9. The backlight unit of claim 3 , wherein the lamp holder is formed from an elastic material.

10. A liquid crystal display device comprising:

a liquid crystal display panel;

a plurality of lamps supplying light to the liquid crystal display panel;

a plurality of light-diffusion plates above the lamp to diffuse the light emitted from the lamp;

a plurality of lamp guides for fixing the lamps and the light-diffusing plates; and

optical sheets above the light-diffusion plate,

wherein the lamp guides correspond to the lamps and the light-diffusing plates so that each lamp guide fixes a corresponding lamp and light-diffusing plate.

11. The liquid crystal display device of claim 10 , wherein the lamp guide includes:

a base;

at least one lamp holder in the base to fix the lamp; and

at least one light-diffusion plate holder in the base to fix the light-diffusion plate.

12. The liquid crystal display device of claim 11 , wherein the light-diffusion plate holder is disposed above the lamp holder.

13. The liquid crystal display device of claim 11 , wherein the lamp guide includes at least one supporter for supporting the optical sheets.

14. The liquid crystal display device of claim 11 , wherein the lamp holder is formed from an elastic material.

Assignments (2)
CHANGE OF NAME Recorded May 21, 2008
From: LG.PHILIPS LCD CO., LTD.
To: LG DISPLAY CO., LTD.
Reel/Frame 020985/0675 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 27, 2006
From: MOON, JEONG-MIN; KIM, EUN-JU; LEE, JAE-WON
To: LG. PHILIPS LCD CO., LTD.
Reel/Frame 018744/0421 →