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. 02, 2013
Filed:
Feb. 09, 2012
Chun-fan Chung, Hsinchu, TW;
Sheng-kai Hsu, Hsinchu, TW;
Chun-Fan Chung, Hsinchu, TW;
Sheng-Kai Hsu, Hsinchu, TW;
AU Optronics Corporation, Hsinchu, TW;
Abstract
A source driver comprising a first DAC with a positive polarity (PDAC), a second DAC with a negative polarity (NDAC), first and second operational amplifiers. Each operational amplifier is characterized with a 1st & 2nd stage and an output stage. The PDAC and NDAC are coupled to the first and second operational amplifiers through a first pair of switches. The 1st & 2nd and output stages of the first operational amplifier are coupled to the 1st & 2nd and output stages of the second operational amplifier through a second pair of switches. The first and second operational amplifiers are coupled to odd data lines and even data line through a third pair of switches.