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. 15, 2010
Filed:
Aug. 28, 2007
Jeng-fang Wu, Hsin-Chu, TW;
Cheng-han Tsao, Hsin-Chu, TW;
Chih-wei Wang, Hsin-Chu, TW;
Yen-ting Chen, Hsin-Chu, TW;
Kun-hua Tsai, Hsin-Chu, TW;
Yi-pai Huang, Hsin-Chu, TW;
Chi-mao Hung, Hsin-Chu, TW;
Ting-jui Chang, Hsin-Chu, TW;
Ming-sheng Lai, Hsin-Chu, TW;
Min-feng Chiang, Hsin-Chu, TW;
Po-yuan Liu, Hsin-Chu, TW;
Chun-ting Liu, Hsin-Chu, TW;
Jeng-fang Wu, Hsin-Chu, TW;
Cheng-han Tsao, Hsin-Chu, TW;
Chih-wei Wang, Hsin-Chu, TW;
Yen-ting Chen, Hsin-Chu, TW;
Kun-hua Tsai, Hsin-Chu, TW;
Yi-pai Huang, Hsin-Chu, TW;
Chi-mao Hung, Hsin-Chu, TW;
Ting-jui Chang, Hsin-Chu, TW;
Ming-sheng Lai, Hsin-Chu, TW;
Min-feng Chiang, Hsin-Chu, TW;
Po-yuan Liu, Hsin-Chu, TW;
Chun-ting Liu, Hsin-Chu, TW;
AU Optronics Corp., Hsin-Chu, TW;
Abstract
A liquid crystal display includes a source driver, a gate driver, a plurality of pixel units, a plurality of detecting circuits, and a decision unit. Each pixel unit includes a switch transistor and a liquid crystal capacitor. When turned on by a scan signal generated by the gate driver, the switch transistor conducts a data signal voltage generated by the source driver to the liquid crystal capacitor, to adjust alignment of liquid crystal molecules. Each detecting circuit is electrically connected to one pixel unit, and includes a first transistor, a second transistor, a third transistor and a sensor unit. The first transistor conducts a constant voltage to the sensor unit when turned on, and generates a dynamic voltage when turned off. Based on the dynamic voltage, the second transistor generates a dynamic current. The third transistor conducts the dynamic current to the decision unit when turned on. The decision unit determines the position of one detecting circuit by comparing the dynamic currents output by the plurality of detecting circuits.