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:
Feb. 03, 1998
Filed:
Mar. 17, 1995
Toshimi Sato, Kawasaki, JP;
Texas Instruments Incorporated, Dallas, TX (US);
Abstract
A type of display-panel drive circuit that reduces the power rating in the IC section so the circuit can be formed using IC. A level shift circuit converts a signal S2 from high level to low level or from low level to high voltage level V.sub.H and outputs it as S2'. A first transistor XSC connects an output terminal HVO1 to ground when signal S2 is high level. A second transistor XSU remains nonconductive when the output of the level shift circuit is low level but connects an external signal input terminal VSU to output terminal HVO1 when the output of the level shift circuit is at high voltage level V.sub.H. A third transistor XSD connects an external signal input terminal VSD to output terminal HVO1 when signal S3 is low level and signal S3' is high level but remains nonconductive when both S3 and S3' are low level.