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:
Mar. 02, 2004
Filed:
Jun. 22, 2001
Applicant:
Inventors:
Akihito Hisamitsu, Amagasaki, JP;
Shoji Kotani, Otsu, JP;
Takeshi Kitahora, Osaka, JP;
Hideaki Ueda, Kishiwada, JP;
Assignee:
Minolta Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 1/900 ;
U.S. Cl.
CPC ...
C09K 1/900 ;
Abstract
Disclosed is a liquid crystal display element which comprises a pair of substrates and a liquid crystal layer held between the pair of substrates and including liquid crystal that exhibits a cholesteric phase. At least one of the substrates has an orientation film that comprises a polyimide having a mesogenic group therein and has not undergone rubbing.