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. 22, 1998
Filed:
Dec. 11, 1995
Applicant:
Inventor:
Benedict C Choy, Saratoga, CA (US);
Assignee:
Supertex, Inc., Sunnyvale, CA (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
345 63 ; 345 77 ; 345 89 ; 345211 ; 345147 ; 326 80 ;
Abstract
The present invention relates to a high voltage output circuit for driving a gray scale flat panel display. The high voltage output circuit eliminates the inaccuracies of prior art output circuits by using a plurality of transistors to eliminate a dead band level within the output circuit. The output circuit is also less expensive than prior art output circuits since a level translator is not required.