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:
Jun. 29, 1999
Filed:
Nov. 03, 1995
Applicant:
Inventor:
Shigeki Tamai, Kashihara, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
257690 ; 349 41 ;
Abstract
Power consumption in a liquid crystal display driver is reduced without degrading display quality of a liquid crystal display. Supply of unnecessary oscillation voltage to the liquid crystal display is stopped by turning off all analog switches AS.sub.0 -AS.sub.7 under the control of a signal TI at the moment when voltage applied to the liquid crystal display reaches a desired DC voltage corresponding to display data D.sub.0 -D.sub.2.