Computer graphics processing and selective visual display system – Display driving control circuitry – Intensity or color driving control
Reexamination Certificate
2011-06-07
2011-06-07
Mengistu, Amare (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
Intensity or color driving control
C345S087000, C345S089000
Reexamination Certificate
active
07956876
ABSTRACT:
In one embodiment of the present invention, in the case of dark display on sub-pixels, a sub-frame processing section is disclosed which sets video data for a sub-frame to a value falling within the range for dark display, and increases or decreases video data for a sub-frame so as to control luminance of the sub-pixels. In the case of bright display, the sub-frame processing section sets video data to a value falling within the range for bright display, and increase or decreases video data so as to control luminance of the sub-pixels. A modulation processing section corrects video data of each frame and then outputs corrected video data to the sub-frame processing section. Also, the modulation processing section predicts luminance that the sub-pixels reach at the end of the frame and then stores prediction results for correction and prediction in the subsequent frame. This realizes a display device which is brighter, has a wider range of viewing angles, restrains deteriorated image quality caused by excessive emphasis of grayscale transition, and has improved moving image quality.
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Harness & Dickey & Pierce P.L.C.
Mengistu Amare
Sharifi Koosha
Sharp Kabushiki Kaisha
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