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. 11, 1990
Filed:
Aug. 14, 1989
Applicant:
Inventors:
Koki Taniguchi, Osaka, JP;
Tamaki Mashiba, Nara, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F / ; G09G / ; G09G / ; G09G / ;
U.S. Cl.
CPC ...
350332 ; 350333 ; 340749 ; 340765 ; 340784 ; 340805 ;
Abstract
A liquid crystal driving system using a dynamic driving method, which includes circuits for driving liquid crystals by applying AC-converted signals containing a specific frequency which is higher than the frame-frequency and different from the duty factor of the data signals.