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:
Jul. 26, 1988
Filed:
Jul. 10, 1986
Hisao Yokokura, Hitachi, JP;
Katsumi Kondo, Hitachi, JP;
Yasuo Hanawa, Katsuta, JP;
Susumu Era, Hitachi, JP;
Kishiro Iwasaki, Hitachi-oota, JP;
Tadao Nakata, Katsuta, JP;
Masato Isogai, Hitachi, JP;
Teruo Kitamura, Katsuta, JP;
Akio Mukoh, Mito, JP;
Yasuhiko Kando, Mobara, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
The element comprises a pair of transparent substrates, a pair of light-transmitting electrodes each provided on the respective substrates, a ferroelectric liquid crystal layer disposed between the pair of substrates and orientation control films for the molecules of the ferroelectric liquid crystal provided between the electrodes and the ferroelectric liquid crystal layer. The orientation control film controls a tile angle of a biphenyle series nematic liquid crystal having biphenyl ring system below 1.5.degree. and causes a uniform molecule orientation characteristic and a memory property for the ferroelectric liquid crystal element of smectic C* liquid crystal and having a liquid crystal layer thickness of even more than 4 .mu.m.