IP Library Granted Patent US 7,672,052
Granted Patent B2
US 7,672,052 · App. 11/534,947 · Granted Mar 2, 2010

Optical sheet and method of assembling liquid crystal display module using the same

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Quick Facts
Patent No.
US 7,672,052
App. No.
11/534,947
Granted
Mar 2, 2010
Kind
B2
Abstract

The present invention relates to an optical sheet and a method of assembling a liquid crystal display module that is capable of preventing an inflow of impurities on a backlight unit, thereby minimizing screen staining caused by the impurities. An optical sheet installed between a liquid crystal display panel and a light guide member according to the present invention includes a transparent peeling sheet adhered to the front surface of the optical sheet facing the liquid crystal display panel; and a semitransparent peeling sheet stuck to the rear surface of the optical sheet facing the light guide member.

Claims (8)

1. An optical sheet comprising:

a diffusion sheet;

a lower prism sheet on the diffusion sheet;

an upper prism sheet on the lower prism sheet;

a transparent peeling sheet adhered to a front surface of the upper prism sheet; and

a semitransparent peeling sheet adhered to a rear surface of the diffusion sheet.

2. The optical sheet according to claim 1 , wherein the material of the transparent peeling sheet is Polyethylene Terephthalate PET.

3. The optical sheet according to claim 1 , wherein the material of the semitransparent peeling sheet is Polyethylene.

Assignments (1)
CHANGE OF NAME Recorded May 21, 2008
From: LG.PHILIPS LCD CO., LTD.
To: LG DISPLAY CO., LTD.
Reel/Frame 020985/0675 →