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:
Aug. 16, 2011
Filed:
Jul. 02, 2009
Applicants:
Kim Leong Tan, Singapore, SG;
Nada A. O'brien, Santa Rosa, CA (US);
Inventors:
Kim Leong Tan, Singapore, SG;
Nada A. O'Brien, Santa Rosa, CA (US);
Assignee:
JDS Uniphase Corporation, Milpitas, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/13363 (2006.01);
U.S. Cl.
CPC ...
Abstract
A contrast compensator for improving the panel contrast of liquid crystal (LC) microdisplays having a high-order waveplate configured as an O-plate and supporting a thin film transistor layer is provided. The contrast compensator includes a counter high-order waveplate configured as an O-plate, which has a birefringence opposite in sign to a birefringence of the thin film transistor substrate.