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US Patent 7924255 Gate driving method and circuit for liquid crystal display

Patent 7924255 was granted and assigned to AU Optronics on April, 2011 by the United States Patent and Trademark Office.

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Patent

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Current Assignee
AU Optronics
AU Optronics
Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent Number
7924255
Date of Patent
April 12, 2011
Patent Application Number
11110088
Date Filed
April 19, 2005
Patent Primary Examiner
‌
Alexander S. Beck
Patent abstract

A gate driving method for a liquid crystal display (LCD) and a gate driver thereof are provided. The LCD has a plurality of scan lines. The method starts by generating a gate driving signal. A correction signal is superposed to the gate driving signal to generate a corrected gate driving signal and to reduce a high voltage level of the gate driving signal, wherein a polarity of the correction signal is opposite to a polarity of the gate driving signal. The corrected gate driving signal is then outputted to drive one of the corresponding scan lines.

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