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. 19, 2006
Filed:
Aug. 01, 2003
Hiroshi Takeda, Kanagawa, JP;
Youji Hirano, Kanagawa, JP;
Hiroshi Takeda, Kanagawa, JP;
Youji Hirano, Kanagawa, JP;
NEC LCD Technologies, Ltd., , JP;
Abstract
An active matrix liquid crystal display device operates such that the polarity of a voltage on a common electrodeis inverted by row or by frame. A charge collection/resupply circuit includes a switch connected between the common electrode and a common voltage output buffer, a charge collection capacitor, and a switch connected between a connection point of the common electrode and the switch and the charge collection capacitor. The switch control unit is configured to operate such that immediately before a polarity of a common voltage VCOMis inverted, the switchis turned off and then the switchis turned on, and further, after inversion of the polarity of the common voltage VCOM, the switch is turned off and then the switch is turned on.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile