Patent ID: 7304628
Filing Date: 2007-12-04
Classification: G09G

Abstract:
1. A driver circuit for driving a display device having pixel circuits disposed at points of intersection between a plurality of scanning electrodes provided at prescribed intervals and a plurality of data electrodes provided at prescribed intervals, said driver circuit comprising: N-number (where N is a natural number) of grayscale selecting circuits, which correspond to N-number of the data electrodes, each for selecting one grayscale voltage from among a plurality of grayscale voltages in accordance with an image signal; an amplifier circuit for subjecting the grayscale voltages, which have been selected by said grayscale selecting circuits, to an impedance conversion to thereby drive the data electrodes; and a changeover control circuit for exercising control so as to divide one horizontal interval into at least (N+1)-number of intervals, drive a Kth (K=1 to N) data electrode by the output of said amplifier circuit by inputting only an output of a Kth grayscale selecting circuit to said amplifier circuit in a Kth interval, and drive the Kth data electrode by the output of the Kth grayscale selecting circuit in at least some intervals other than the Kth interval.