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:
Apr. 08, 2014
Filed:
Oct. 30, 2008
Yong-nien Rao, Hsinchu, TW;
Yu-lung Lo, Banciao, TW;
Chih-yu Lee, Hsinchu, TW;
Raydium Semiconductor Corporation, Hsinchu County, TW;
Abstract
The invention discloses a driving apparatus for driving an LCD. The driving apparatus comprises a voltage control unit, an operating unit, a resistance unit, and a voltage selection unit. The operating unit comprises two sets of buffers formed by a plurality of operational amplifiers in negative feedback circuit. The two sets of buffers selectively receive positive polarity voltages and negative polarity voltages respectively. The voltage selection unit is provided with the positive polarity voltages and negative polarity voltages through the operating unit and the resistance unit. The voltage selection unit selectively provides the pixels of the LCD with the positive polarity voltage and the negative polarity voltage. Accordingly, each of the pixels is provided either with the positive polarity voltages or the negative polarity voltages by one of the two sets of buffers.