Television – Video display – Color sequential
Patent
1996-06-06
1999-12-14
Peng, John K.
Television
Video display
Color sequential
348743, 348771, 348268, 348 70, 348739, H04N 912, H04N 930
Patent
active
060024526
ABSTRACT:
A sequential color display system (10) suited to receive data (20) at different rates without discarding or filtering video data. The mismatch of bandwidths between the input source video data and the output sequential color display is accommodated by retaining a modified synchronous operation. A color wheel (50) having a plurality of segments is utilized whereby the input frame rate in reference to the color wheel rate is always a ratio of integers. Using a digital micromirror device (44) spatial light modulator, no mixing of frame-to-frame bit planes is required during a colored segment. In the preferred embodiment, the ratio of integers is 7-to-6 for a 50 hertz input, such as a PAL system, or a 5-to-6 ratio for a 72 hertz input. The color wheel is maintained at about a 60 hertz rate.
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Brill Charles A.
Desir Jean W.
Donaldson Richard L.
Peng John K.
Telecky Jr. Frederick J.
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