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:
Jun. 29, 2004
Filed:
Oct. 19, 2001
Hiroaki Fujino, Nara, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A display driving apparatus in accordance with the present invention outputs a plurality of types of driving voltages that vary depending on display data to display device from a plurality of output terminals for liquid crystal driving voltages via voltage follower circuits. Each of the voltage follower circuits is connected with the output terminals for liquid crystal driving voltages via an analog switch circuit. The analog switch circuit is shared by the output terminals for liquid crystal driving voltages in accordance with the switching of the analog switch circuit. This allows to suppressing the increasing in the circuit scale with the increasing in the number of terminals and the increasing of the power consumption.