Computer graphics processing and selective visual display system – Display driving control circuitry – Intensity or color driving control
Reexamination Certificate
2011-04-19
2011-04-19
Osorio, Ricardo L (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
Intensity or color driving control
C345S089000
Reexamination Certificate
active
07929000
ABSTRACT:
In one embodiment of the present invention, a frame interpolation process circuit performs an interpolation process on a video signal in units of frames. A time-division gradation process circuit performs gradation level conversion for distributing brightness for one frame cycle to two sub-frame cycles, i.e., first and second sub-frame cycles. A gradation level change detection circuit detects whether a gradation level of each pixel has changed between consecutive sub-frames. For any pixel having its gradation level changed, an overshoot process circuit outputs, instead of an output signal of the time-division gradation process circuit, a video signal obtained by subjecting an output signal of the frame interpolation process circuit to gradation level conversion for emphasizing a temporal change of the signal. A predetermined-times higher speed process circuit may be added to this circuit configuration, or may be substituted for the frame interpolation process circuit. This makes it possible to improve moving image display performance, while making up for a lack of response speed of display elements.
REFERENCES:
patent: 2004/0201564 (2004-10-01), Sugino et al.
patent: 2005/0122295 (2005-06-01), Sawabe
patent: 2005/0162360 (2005-07-01), Ishihara et al.
patent: 2005/0253785 (2005-11-01), Miyasaka et al.
patent: 2006/0256141 (2006-11-01), Maruyama et al.
patent: 2009/0122207 (2009-05-01), Inoue et al.
patent: 2650479 (1997-05-01), None
patent: 9-325715 (1997-12-01), None
patent: 2001-042831 (2001-02-01), None
patent: 2003-208138 (2003-07-01), None
patent: 2004-233949 (2004-08-01), None
patent: 2005-091454 (2005-04-01), None
patent: 2005-173387 (2005-06-01), None
patent: 2005-173573 (2005-06-01), None
patent: 2005-189820 (2005-07-01), None
patent: 2006-343707 (2006-12-01), None
patent: WO 2006/100988 (2006-09-01), None
patent: WO 2007/018219 (2007-02-01), None
Harness & Dickey & Pierce P.L.C.
Osorio Ricardo L
Sharp Kabushiki Kaisha
LandOfFree
Image display device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Image display device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Image display device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2684007