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:
Feb. 28, 2012
Filed:
Aug. 10, 2007
Pang-chiang Chia, Hsinchu, TW;
Chun-hung Huang, Hsinchu, TW;
Yao-jen Hsieh, Hsinchu, TW;
Heng-sheng Chou, Hsinchu, TW;
Pang-Chiang Chia, Hsinchu, TW;
Chun-Hung Huang, Hsinchu, TW;
Yao-Jen Hsieh, Hsinchu, TW;
Heng-Sheng Chou, Hsinchu, TW;
AU Optronics Corp., Hsinchu, TW;
Abstract
An over-driving device is provided. In a first frame, a compression circuit compresses a first image signal to generate a first compression image signal, and a buffer temporarily stores the first compression image signal. In a following second frame, the compression circuit compresses a second image signal to generate a second compression image signal, and the buffer outputs the first compression image signal to serve as a first buffer image signal. A comparison circuit compares the second compression image signal and the first buffer image signal and generates an enable signal according comparison result. A decompression circuit decompresses the first buffer image signal to generate a previous image signal. An over-driving unit receives the second image signal to serve to a current image signal and receives the previous image signal and the enable signal. The over-driving unit over drives the display device or not according to the enable signal.