IP Library Granted Patent US 7,494,242
Granted Patent B2
US 7,494,242 · App. 11/863,370 · Granted Feb 24, 2009

Backlight assembly including a diffuser plate having indented portions and a reflective plate having lamp insertion portions

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Quick Facts
Patent No.
US 7,494,242
App. No.
11/863,370
Granted
Feb 24, 2009
Kind
B2
Abstract

A backlight assembly structured to reduce vibrations and impacts that are transmitted to fluorescent lamps. The backlight assembly includes a diffuser plate diffusing light and including indented portions in a bottom surface thereof, a plurality of lamps disposed under the diffuser plate and emitting the light, and a reflective plate disposed under the lamps and reflecting the light.

Claims (27)

1. A backlight assembly comprising:

a diffuser plate comprising indented portions in a bottom surface of the diffuser plate;

a reflective plate disposed under the diffuser plate and including lamp insertion portions formed in a top surface of the reflective plate, wherein the lamp insertion portions correspond to the indented portions of the diffuser plate; and

a plurality of lamps interposed between the diffuser plate and the reflective plate, wherein the lamp insertion portions comprise a plurality of grooves formed in the reflective plate and receiving the plurality of lamps therein.

2. The backlight assembly of claim 1 , wherein the indented portions each have a furrow shape and extend in a lengthwise direction of the lamps.

3. The backlight assembly of claim 1 , wherein the indented portions have semicircular cross-sections.

4. The backlight assembly of claim 1 , further comprising buffer portions formed on outer surfaces of the lamps, wherein the buffer portions are positioned between the diffuser plate and the reflective plate.

5. The backlight assembly of claim 4 , wherein the Duffer portions are interposed between the indented portions and the lamp insertion portions.

6. The backlight assembly of claim 4 , wherein the buffer portions have a ring shape.

7. The backlight assembly of claim 4 , wherein the buffer portions include a transparent material.

8. The backlight assembly of claim 7 , wherein the buffer portions include silicon or rubber.

9. The backlight assembly of claim 1 , wherein the lamp insertion portions each have a furrow shape and extend in the lengthwise direction of the lamps.

10. The backlight assembly of claim 9 , wherein the lamp insertion portions have semicircular cross-sections.

11. The backlight assembly of claim 9 , wherein the lamp insertion portions have parabolic cross-sections.

12. The backlight assembly of claim 9 , wherein the lamp insertion portions are separated from one another at regular intervals, and the reflective plate comprises a reflective surface between the lamp insertion portions.

13. The backlight assembly of claim 12 , wherein the reflective surface is flat.

14. The backlight assembly of claim 12 , wherein the reflective surface is curved.

15. A liquid crystal display comprising:

a liquid crystal panel displaying an image; and

a backlight assembly including a diffuser plate having indented portions in a bottom surface of the diffuser plate,

a reflective plate disposed under the diffuser plate and including lamp insertion portions formed in a top surface of the reflective plate, wherein the lamp insertion portions correspond to the indented portions of the diffuser plate, and

a plurality of lamps interposed between the diffuser plate and the reflective plate, wherein the lamp insertion portions comprise a plurality of grooves formed in the reflective plate and receiving the plurality of lamps therein.

16. The liquid crystal display of claim 15 , wherein the indented portions each have a furrow shape and extend in the lengthwise direction of the lamps.

17. The liquid crystal display of claim 15 , wherein the lamp insertion portions each have a furrow shape and extend in the lengthwise direction of the lamps.

18. The liquid crystal display of claim 15 , further comprising buffer portions formed on outer surfaces of the lamps, wherein the buffer portions are positioned between the diffuser plate and the reflective plate.

19. The liquid crystal display of claim 18 , wherein the buffer portions are interposed between the indented portions and the lamp insertion portions.

20. The liquid crystal display of claim 15 , wherein the lamp insertion portions are separated from one another at regular intervals, and the reflective plate comprises a reflective surface between the lamp insertion portions.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 17, 2012
From: SAMSUNG ELECTRONICS CO., LTD.
To: SAMSUNG DISPLAY CO., LTD.
Reel/Frame 029045/0860 →