Semiconductor integrated circuit

Details Semiconductor integrated circuit Semiconductor integrated circuit

2007-11-13

2007-11-13

Hjerpe, Richard (Department: 2629)

Computer graphics processing and selective visual display system

Display driving control circuitry

C345S098000, C345S100000

Reexamination Certificate

active

10863730

ABSTRACT:
To reduce power consumption in an IC driver that is capable of accommodating image data in a plurality of kinds of unit bit lengths and supplies a plurality of display signals to a plurality of corresponding respective electrodes of an image display device based on image data, a semiconductor integrated circuit is equipped with a counter that counts a clock signal and outputs count values, a comparison data generation circuit that outputs a plurality of kinds of comparison data for each kind of unit bit length of image data based on the count values outputted from the counter, a comparison circuit that compares image data in a unit bit length and the comparison data that are successively outputted from the comparison data generation circuit, and a pulse output circuit that determines pulse widths of the plurality of display signals to be supplied to the plurality of corresponding respective electrodes based on a comparison result obtained by the comparison circuit and outputs the display signals.

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