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:
Nov. 16, 2010
Filed:
Jun. 12, 2008
Chung-chun Chen, Hsin-Chu, TW;
Cheng-chiu Pai, Hsin-Chu, TW;
Chung-Chun Chen, Hsin-Chu, TW;
Cheng-Chiu Pai, Hsin-Chu, TW;
AU Optronics Corp., Science-Based Industrial Park, Hsin-Chu, TW;
Abstract
An analog buffer having voltage compensation mechanism is disclosed for use in a source driving circuit of a liquid crystal display. The analog buffer includes a reference voltage generator, a plurality of capacitors, a plurality of switches, and a plurality of transistors. Each of the capacitors is utilized to store the gate-source voltage of the corresponding turn-on transistor for performing gate-source voltage compensation operation based on the reference voltages provided by the reference voltage generator. Each of the switches functions to control gate-source voltage compensation operation and is turned on/off in response to a corresponding control signal. The analog buffer is capable of compensating the gate-source voltages of turn-on transistors for generating an output voltage having an acceptable tiny offset with respect to an input voltage.