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:
May. 11, 2010
Filed:
Aug. 31, 2006
Applicants:
Kim Leong Tan, Santa Rosa, CA (US);
Anthony James Mache, Jr., Santa Rosa, CA (US);
Inventors:
Kim Leong Tan, Santa Rosa, CA (US);
Anthony James Mache, Jr., Santa Rosa, CA (US);
Assignee:
JDS Uniphase Corporation, Milpitas, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/13363 (2006.01); G02F 1/139 (2006.01); H04N 9/31 (2006.01);
U.S. Cl.
CPC ...
Abstract
A trim retarder for a liquid crystal display based projection system including a light source, a polarizer/analyzer, a liquid crystal display panel, and a projection lens, is clocked to an optimal azimuthal angle that provides a system contrast level substantially unaffected by the orientation of the slow axis of the liquid crystal display panel.