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:
Dec. 27, 1988
Filed:
Mar. 02, 1987
Applicant:
Inventors:
Sadashi Shimoda, Tokyo, JP;
Takamasa Harada, Tokyo, JP;
Masaaki Taguchi, Tokyo, JP;
Kokichi Ito, Tokyo, JP;
Assignee:
Seiko Instruments, Inc., Tokyo, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ;
U.S. Cl.
CPC ...
3503 / ; 350333 ; 340765 ; 340805 ;
Abstract
A ferro-electric crystal electro-optical device which uses switching between bi-stable states of ferro-electric liquid crystal molecules. A change from one of the stable states to the other is effected by applying a selected voltage having a combination of chopping pulse to which the liquid crystal molecules are not responsive and DC pulse to which the liquid crystal molecules are responsive.
Quick Actions:
Shimoda, Sadashi. (1988). Ferro-electric liquid crystal electro-optical device having a drive (U.S. Patent No. 4793693). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4793693
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile