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. 05, 2009
Filed:
Aug. 11, 2005
Applicants:
Michael V. Paukshto, Foster City, CA (US);
Pochi Yeh, Thousand Oaks, CA (US);
Inventors:
Michael V. Paukshto, Foster City, CA (US);
Pochi Yeh, Thousand Oaks, CA (US);
Assignee:
Nitto Denko Corporation, Ibaraki-Shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
C09K 19/02 (2006.01); G02F 1/13363 (2006.01);
U.S. Cl.
CPC ...
Abstract
The compensator design, which comprises at least two layers of birefringent material, one of them is a positive A-plate and another one is a negative A-plate, makes possible a significant improvement in color rendering properties and contrast ratios of liquid crystal displays over a wide range of viewing angle.