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:
Sep. 11, 2007

Filed:

Sep. 13, 2004
Applicant:

Chuan-pei Yu, I-Lan Hsien, TW;

Inventor:

Chuan-Pei Yu, I-Lan Hsien, TW;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1335 (2006.01);
U.S. Cl.
CPC ...
Abstract

A liquid crystal display device includes a liquid crystal display panel, a light source for providing light beams to irradiate the liquid crystal display panel, and an optical sheet positioned between the liquid crystal display panel and the light source and having a first surface facing the light source. Additionally, the first surface has a plurality of prisms for totally reflecting portions of ambient light beams that have passed through the liquid crystal display panel to irradiate the liquid crystal display panel.


Find Patent Forward Citations

Loading…