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:
Jul. 13, 2004
Filed:
Oct. 12, 2001
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A source driver of the present invention has a reference voltage generator for generating tone display voltages, and a DA converter for selecting and outputting a tone display voltage to a liquid crystal panel. In the source driver , a buffer circuit section is provided between the reference voltage generator and the DA converter . The buffer circuit section includes a buffer, and analog switch circuits which switch modes of connection between the reference voltage generator , the buffer, and the DA converter , so as to select whether to output the tone display voltage to the DA converter via the buffer or without utilizing the buffer. Operations of the analog switch circuits are controlled by the analog switch circuit section
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile