Light guide plate and liquid crystal display device having...

Details Light guide plate and liquid crystal display device having... Light guide plate and liquid crystal display device having...

2007-04-04

2009-11-10

Truong, Bao Q (Department: 2875)

Illumination

Edge lighted panel

Light modifier with emission face combined with light guide...

C362S607000, C362S617000, C362S620000

Reexamination Certificate

active

07614773

ABSTRACT:
A light guide plate and a liquid crystal display device having the same. The light guide plate is disposed upstream of a liquid crystal panel to refract light supplied through an edge thereof, toward the liquid crystal panel. In the light guide plate, a plate body is disposed at a side of a light source for supplying light when a supply voltage is applied. A plurality of pyramidal diffusing elements are arrayed in a predetermined pattern on a surface of the plate body. Each of the diffusing elements is rotated clockwise or counterclockwise about an axis extending through a vertex of the diffusing element perpendicularly to the surface of the plate body so that an edge of the diffusing element facing a reference line connecting a central point of the light source to a central point of the plate body is angled 10° to 35° about the reference line.

REFERENCES:
patent: 6836303 (2004-12-01), Kim
patent: 7317501 (2008-01-01), Tanaka et al.
patent: 1321896 (2001-11-01), None
patent: 1438499 (2003-08-01), None
patent: 2003-0012568 (2003-02-01), None
Chinese Office Action, with English Translation, issued in Chinese Patent Application No. CN 2007100922610, issued on May 23, 2008.

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