Patent ID: 8294655

Claim:
A display drive device for driving a display panel on which a plurality of display pixels are arranged adjacent to intersections of a plurality of signal lines and a plurality of scanning lines, based on display data, the device comprising: a first data conversion circuit which converts each predetermined number of display data of the display data, into pixel data in which the respective display data are arranged in time-series; a display signal voltage generation circuit which generates display signal voltages which correspond to the pixel data and are to be applied to the display pixels via the plurality of signal lines; a second data conversion circuit which is provided for each the predetermined number of signal lines of the plurality of signal lines, converts the display signal voltages so as to correspond to an arranging order of the display data in the pixel data, and sequentially applies the display signal voltages to the predetermined number of signal lines in writing periods which are set variedly for the respective signal lines; and a control section which sets the writing periods for the respective signal line, to periods corresponding to writing speeds at which the display pixels write the display signal voltages therein.