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:
Feb. 26, 1991
Filed:
Aug. 14, 1989
Applicant:
Inventors:
Takashi Inujima, Atsugi, JP;
Shunpei Yamazaki, Tokyo, JP;
Toshimitsu Konuma, Atsugi, JP;
Toshiji Hamatani, Atsugi, JP;
Mitsunori Sakama, Hiratsuka, JP;
Toshiharu Yamaguchi, Zama, JP;
Ippei Kobayashi, Atsugi, JP;
Assignee:
Semiconductor Energy Laboratory Co., Ltd., Kanagawa, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
3503 / ; 350341 ; 350336 ; 3503 / ;
Abstract
An improved liquid crystal device which is driven by applying electric field thereon is shown. The liquid crystal is contained in the device as a layer which is separated into pixel and the optical condition of which is changed by the electric field applied. Contiguous to the liquid crystal layer, a ferroelectric film is provided to impart hysteresis to the device.