IP Library Granted Patent US 7,492,422
Granted Patent B2
US 7,492,422 · App. 10/952,712 · Granted Feb 17, 2009

Liquid crystal display device

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Quick Facts
Patent No.
US 7,492,422
App. No.
10/952,712
Granted
Feb 17, 2009
Kind
B2
Abstract

A liquid crystal display device includes a liquid crystal display panel and a backlight unit. A case top covers edges of the liquid crystal display panel. At least one resilient metallic member contacts a portion of the case top as well as an upper glass substrate of the liquid crystal display panel and a plastic support main on which the liquid crystal display panel is supported and into which the backlight unit is fit. The resilient metallic member grounds the liquid crystal display panel to the case top, thereby preventing static electricity from damaging the liquid crystal display panel.

Claims (14)

1. A liquid crystal display device comprising:

a liquid crystal display panel;

a case top covering edges of the liquid crystal display panel;

an insulating support main configured to support the liquid crystal display panel, the insulating support main further including a peg; and a coiled compressible conductive member disposed on the peg and biased between the case top and the liquid crystal display panel to provide electrical contact between the liquid crystal display panel and the case top.

2. The liquid crystal display device as claimed in claim 1 , wherein the coiled compressible conductive member contacts the liquid crystal display panel and the case top.

3. The liquid crystal display device as claimed in claim 1 , wherein the liquid crystal panel comprises opposing substrates, one of the substrates contacting the support main.

4. The liquid crystal display device as claimed in claim 1 , wherein the coiled compressible conductive member is attached to the case top.

5. The liquid crystal display device as claimed in claim 1 , wherein the coiled compressible conductive member is attached to the liquid crystal panel.

6. The liquid crystal display device as claimed in claim 1 , wherein the compressible conductive member is disengageable from the liquid crystal panel.

7. The liquid crystal display device as claimed in claim 1 , wherein the coiled compressible conductive member is resilient.

8. The liquid crystal display device as claimed in claim 1 , wherein the coiled compressible conductive member provides physical contact between the liquid crystal display panel and the case top.

9. The liquid crystal display device as claimed in claim 1 , wherein the compressible conductive member provides physical contact between the liquid crystal display panel and the support main.

10. The liquid crystal display device as claimed in claim 1 , wherein the coiled compressible conductive member is laterally constrained by the support main.

11. The liquid crystal display device as claimed in claim 1 , wherein the coiled compressible conductive member is non-adhesive.

Assignments (2)
CHANGE OF NAME Recorded May 22, 2008
From: LG PHILIPS CO., LTD.
To: LG DISPLAY CO., LTD.
Reel/Frame 020976/0785 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 27, 2005
From: JA, OH IN (LEGAL REPRESENTATIVE SIGNING ON BEHALF OF DECEASED INVENTOR YOUNG WOO PARK); HA, YOUNG KWANG
To: LG PHILIPS LCD CO., LTD.
Reel/Frame 016210/0765 →