US Patent 7580019 Method and apparatus for driving liquid crystal display device

Patent 7580019 was granted and assigned to LG on August, 2009 by the United States Patent and Trademark Office.

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Patent

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Current Assignee

Patent Jurisdiction

United States Patent and Trademark Office

Patent Number

75800190

Patent Inventor Names

Kyung Joon Kwon0

Hee Jung Hong0

Date of Patent

August 25, 2009

Patent Application Number

111505420

Date Filed

June 10, 2005

Patent Primary Examiner

‌

Sumati Lefkowitz

Patent abstract

A driving method and apparatus of a liquid crystal display device is described. Data from a current frame is compressed and delayed by a frame memory. Compressed data of the current frame and the compressed data of a previous frame from the frame memory are restored. The restored data of the previous frame is compared with the restored data of the current frame to determine a modulated portion for the current frame in accordance with the comparison result. The current frame data is modulated by adding the modulated portion to the current frame data. Only a single frame memory is disposed within the driving apparatus.

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