Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Patent
1991-05-17
1994-12-27
Chin, Tommy P.
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
345103, G09G 336
Patent
active
053769449
ABSTRACT:
In a liquid crystal display device, to improve the contrast, the frame frequency is raised by scanning the scanning electrodes of the liquid crystal display panel a plurality of times during one field interval of the video signal. The scanning electrodes are divided into two groups, which are scanned alternately. An image memory is provided to store video signals. In scanning the liquid crystal display panel, the video signal from the video signal supplying source and the video signal read from the image memory are alternately supplied to the liquid crystal display panel. The image memory stores only part of the video signal such as the video signal for every other horizontal scanning period or the signal consisting of the most significant bit only, not the entire video signal.
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Mogi Tomohiro
Usui Minoru
Au A.
Casio Computer Co. Ltd.
Chin Tommy P.
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