The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 23, 2006

Filed:

Aug. 29, 2003
Applicants:

Tai-cheng Yu, Tu-chen, TW;

Charles Leu, Fremont, CA (US);

Ga-lane Chen, Fremont, CA (US);

Inventors:

Tai-Cheng Yu, Tu-chen, TW;

Charles Leu, Fremont, CA (US);

Ga-Lane Chen, Fremont, CA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F21V 8/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

The present invention provides a surface light source () using a light guide plate () to illuminate a liquid crystal display. The light guide plate comprises a light incident surface (), a light-emitting surface () perpendicular to the light incident surface, a bottom surface () opposite to the light-emitting surface, and a plurality of side surfaces. An anti-reflective coating is formed on the light incident surface and the light-emitting surface. A reflective coating is formed on the bottom surface and at least one of the side surfaces. The light guide plate provides a high luminace output for the liquid crystal display.


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