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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.:

US 5280279 B1

PDFFull Text
Date of Patent:
Jan. 18, 1994

Filed:

Dec. 19, 1990

Driving circuit for producing varying signals for a liquid crystal

Applicant:
Inventors:

Kiyoshi Nakazawa, Fujiidera, JP;

Naofumi Kondo, Nara, JP;

Mikio Katayama, Ikoma, JP;

Tsuneo Nakamura, Nara, JP;

Assignee:

Sharp Kabushiki Kaisha, Osaka, JP;

Attorney:

Nixon & Vanderhye

Primary Examiner:

Howard W Britton

Assistant Examiner:

A Au

Int. Cl.
CPC ...
G09G / ;
U.S. Cl.
CPC ...
345 38 ; 345 84 ; 345 50 ; 345208 ; 345 96 ;
Abstract

A driving circuit which can drive an LCD apparatus without causing the residual image phenomenon is disclosed. The driving circuit has a polarity-inverting circuit for converting input video signals into polarity-alternating signals. The polarity-inverting circuit has input-output characteristics which are at least partially non-linear. The input-output characteristics are linear in the positive region, and non-linear in the negative region, or non-linear in the positive region, and linear in the negative region.

Find Patent Forward Citations

Nakazawa, Kiyoshi. (1994). Driving circuit for producing varying signals for a liquid crystal (U.S. Patent No. 5280279). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5280279

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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