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, 1994
Filed:
Aug. 13, 1992
Applicant:
Inventor:
Yoshiki Sano, Kashihara, JP;
Assignee:
Sharp Kabushiki Kaisha, Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H04N / ;
U.S. Cl.
CPC ...
345 89 ; 345 98 ;
Abstract
A liquid crystal driver circuit is arranged to select one of a plurality of different reference voltages in response to externally input through the effect of a multiplexer circuit. The liquid crystal driver further provides a buffer circuit at an output stage of the multiplexer circuit, arranged in a manner that its impedance is high at an input and low at an output to thereby lower an output impedance of the liquid crystal driver circuit.