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:
Nov. 26, 1991
Filed:
Mar. 21, 1989
Hisao Yokokura, Hitachi, JP;
Tadao Nakada, Katsuta, JP;
Teruo Kitamura, Katsuta, JP;
Akio Mukoh, Mito, JP;
Yasuhiko Kando, Mobara, JP;
Isoji Sakai, Kobe, JP;
Yasuo Fujimura, Ashiya, JP;
Noboru Masutani, Ashiya, JP;
Tsunetaka Matsumoto, Kobe, JP;
Yasuo Imanishi, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Nitto Denko Corporation, Osaka, JP;
Abstract
A liquid crystal display cell, wherein orientation films are made of an organic polymer such as polyimide, polyamide, liquid crystal polymer having one or more mesogen groups in a main chain or side chain and produced by spreading an organic polymer solution on a water surface, is excellent in memory properties and contrast and generates no static electricity, no short circuit between electrodes and no breaking of electrodes.