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:
Sep. 13, 1977
Filed:
Mar. 12, 1975
Applicant:
Inventor:
Shunichi Sano, Zama, JA;
Assignee:
Tokyo Shibaura Electric Co., Ltd., Kawasaki, JA;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F / ;
U.S. Cl.
CPC ...
3403 / ; 340336 ; 3501 / ;
Abstract
Disclosed is a system for driving a liquid crystal provided between electrodes disposed within a transparent receptacle in a manner spaced from each other. In order to drive the liquid crystal the electrodes are applied with a square-shaped pulse voltage in which the absolute value of the ratio of the third harmonics wave component amplitude to the fundamental wave component amplitude is below 1/3.