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:
Jul. 17, 2012
Filed:
Sep. 16, 2009
Yi-suei Liao, Hsin-Chu, TW;
Chien-liang Chen, Hsin-Chu, TW;
Ming-yen Tsai, Hsin-Chu, TW;
AU Optronics Corp., Science-Based Industrial Park, Hsin-Chu, TW;
Abstract
An LCD device includes a plurality of gate lines and a plurality of shift register units for driving corresponding gate lines. Each shift register unit includes a first circuit and a second circuit. The first circuit, disposed on a first side of a corresponding gate line, includes a pulse generator and a first transistor having a first W/L ratio. The pulse generator provides a driving signal according to the voltage obtained at a node, while the first transistor maintains the voltage level of the node. The second circuit, disposed on a second side of the corresponding gate line, includes a second transistor having a second W/L ratio. The second transistor maintains the voltage level of the driving signal from the second side of the corresponding gate line. The first W/L ratio is smaller than the second W/L ratio, and the first circuit occupies larger space than the second circuit.