Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2006-11-28
2006-11-28
Hjerpe, Richard (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S089000, C345S098000, C345S100000, C345S204000, C345S211000, C345S212000, C345S690000
Reexamination Certificate
active
07142182
ABSTRACT:
The present invention provides an image processing circuit having a D/A converter that converts input image data Da to an analog signal to generate an image signal VID. The output range of the D/A converter is controlled by an output-range control signal CTLout having a different signal level according to the type of a liquid-crystal display panel used. Therefore, a range where the signal level of the image signal VID is changed can be adjusted according to the type of the liquid-crystal display panel. Consequently, even when an image-signal processing circuit is used with one of a plurality of types of liquid-crystal display panels having different V-T characteristics, since the data values of input image data Da can be assigned to a desired applied-voltage range, high-definition images can be displayed.
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Aoki Toru
Naito Keijiro
Hjerpe Richard
Nguyen Jennifer T.
Oliff & Berridg,e PLC
Seiko Epson Corporation
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