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. 11, 2014
Filed:
Sep. 29, 2011
Meng-sheng Chang, Hsin-Chu, TW;
Meng-Sheng Chang, Hsin-Chu, TW;
AU Optronics Corp., Hsinchu, TW;
Abstract
A scan-line driving device for a LCD apparatus is provided. The scan-line driving device comprises a PWM signal generating circuit, two impedances with different resistance values, a capacitor and two scan drivers. The PWM signal generating circuit outputs a PWM signal with two potentials and a predetermined duty cycle. A terminal of the capacitor is electrically coupled to a ground potential, and the other terminal of the capacitor receives the PWM signal. Each of the scan drivers comprises a core circuit and a transistor. A source/drain terminal of each transistor is electrically coupled to a PWM signal input terminal of a corresponding core circuit and the other terminal of the capacitor, the other source/drain terminal of each transistor is electrically coupled to the ground potential through a corresponding one of the impedances, and the gate terminal of each transistor receives a turn-on control signal.