US Patent 7719493 Data driving circuit of display device

Patent 7719493 was granted and assigned to AU Optronics on May, 2010 by the United States Patent and Trademark Office.

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Patent

Patent attributes

Current Assignee

AU Optronics

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

77194930

Patent Inventor Names

Hui-Ya Huang0

Date of Patent

May 18, 2010

Patent Application Number

114071990

Date Filed

April 20, 2006

Patent Primary Examiner

‌

Richard Hjerpe

Patent abstract

A data driving circuit, used to drive display devices, comprises a digital-to-analog current converter (DAC), a reset circuit connected to the output terminal of the DAC for resetting the output potential of the DAC to a specific gray scale potential, and plural stages of data driver units connected to the output terminal of the DAC and the reset circuit to drive data lines of the display devices. Each of the data driver units comprises a sample-holding circuit and a control circuit.

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