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:
Sep. 03, 2002
Filed:
Sep. 30, 1999
Applicant:
Inventors:
Koushin Matsuoka, Minami-ashigara, JP;
Ken Kawata, Minami-ashigara, JP;
Assignee:
Fuji Photo Film Co., Ltd., Minami-Ashigara, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1335 ; C09K 1/938 ; C09K 1/932 ;
U.S. Cl.
CPC ...
G02F 1/1335 ; C09K 1/938 ; C09K 1/932 ;
Abstract
An optical compensation sheet favorably employable for a liquid crystal display has an optical anisotropic layer which is composed of a polymer of a non-chiral discotic liquid crystal compound having a polymerizable group and a chiral compound. The non-chiral discotic liquid crystal compound is preferably aligned at an angle between 45° and 90° to a plane of the compensation sheet and under a twisted orientation at an angle between 90° and 360°.