MacPherson Kwok Chen & Heid LLP
Modifying gray voltage signals in a display device
A method and apparatus for driving a display device, as well as a display device incorporating such method and apparatus, are presented. The method includes determining a first difference Δ1, wherein Δ1 is a difference between gray signals of two consecutive frames, comparing Δ1 to a predetermined value to obtain a comparison result, and using the comparison result to determine a modified current gray signal. The modified current gray signal is applied to a current frame to improve image quality. In another aspect, the invention includes a method of driving a display device by determining the gray signal levels for a first frame, a second frame that follows the first frame, and a third frame. A modified current gray signal is determined based on the relative magnitudes of the three gray signal levels, and applied to the current frame.
Samsung Electronics Co., Ltd.
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Seung-Woo Moung-Su
Lee Kim