Computer graphics processing and selective visual display system – Display driving control circuitry – Intensity or color driving control
Reexamination Certificate
2007-04-10
2007-04-10
Osorio, Ricardo (Department: 2629)
Computer graphics processing and selective visual display system
Display driving control circuitry
Intensity or color driving control
C345S100000
Reexamination Certificate
active
11437705
ABSTRACT:
A gray-scale power supply line supplied to a source signal line driving circuit is made only one system, and each of D/A conversion circuits drives source signal lines in which three source signal lines corresponding to RGB are made a unit and the number of which is a multiple of 3. The periods in which respective source line selecting circuits select source signal lines corresponding to respective colors of the RGB are made synchronous with each other, and the power supply voltage applied to the gray-scale power supply line is changed in one horizontal writing period, so that power supply voltages corresponding to R. G and B are respectively applied to the gray-scale power supply line in periods while the source signal lines of R, G and B are respectively selected.
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Osorio Ricardo
Robinson Eric J.
Robinson Intellectual Property Law Office P.C.
Semiconductor Energy Laboratory Co,. Ltd.
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