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.
Patent No.:
Date of Patent:
Oct. 18, 2005
Filed:
Nov. 14, 2003
Applicants:
Wei-duz Hong, Taoyuan, TW;
Tung-lung LI, Taoyuan, TW;
Long-hai Wu, Taoyuan, TW;
Ta-wang Lai, Taoyuan, TW;
Inventors:
Wei-Duz Hong, Taoyuan, TW;
Tung-Lung Li, Taoyuan, TW;
Long-Hai Wu, Taoyuan, TW;
Ta-Wang Lai, Taoyuan, TW;
Assignee:
Optimax Technology Corporation, Taoyuan, TW;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B005/30 ; G02B027/28 ; G02F001/1335 ;
U.S. Cl.
CPC ...
Abstract
A polarizer to improve contrast for LCD from down view angle is produced by laminating a triacetate cellulose (TAC) sheet on each side of a polyvinyl alcohol (PVA) sheet and further on the toppest triacetate cellulose (TAC) sheet applying a surface-treatment layer that is a protective film formed by black dye mixture to inhibit dark-state light leakage and improve the contrast for LCD from down view angle.