Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2007-01-02
2007-01-02
Shalwala, Bipin (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S098000, C345S690000
Reexamination Certificate
active
10496552
ABSTRACT:
Column electrode driving circuit for a display device which reduces power consumption arid is capable of gray-scale displaying. The driving circuit include a gray-scale voltage producing system including amplifiers whose inputs are applied with a plurality of gray-scale voltages, respectively, and a selecting system for selecting and outputting any of output signals of the amplifiers for each pixel or each predetermined displayed unit in accordance with an image signal indicative of a gray-scale level for the pixel or displayed unit. The gray-scale voltage producing system causes any amplifiers of the amplifiers, which correspond to a predetermined number of predetermined gray scale levels, to be powered off and causing the other amplifiers to be powered on during a predetermined mode, the selecting system select any of output signals of the amplifiers powered on during the predetermined mode. A further construction based on potential divider circuits is also disclosed.
REFERENCES:
patent: 5874933 (1999-02-01), Hirai et al.
patent: 6756959 (2004-06-01), Fujino
patent: 6806860 (2004-10-01), Saito et al.
patent: 2002/0008686 (2002-01-01), Kumada et al.
patent: 2002/0036624 (2002-03-01), Ohta et al.
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