Patent ID: 6700568
Filing Date: 2004-03-02
Classification: G09G

Abstract:
A method for driving a capacitive display apparatus having a plurality of display pixels comprised of capacitive elements which are disposed respectively at crossing portions between data-side electrodes and scan-side electrodes, the method comprising:driving the data-side electrodes at a voltage corresponding to display data, while scanning the scan-side electrodes to be selected sequentially; applying a driving voltage to the display pixels to carry out a display operation; when the a data-side electrode is driven to be charged with a voltage having an inverse polarity relative to a voltage charged at a previous charge in a pixel, charging/discharging the data-side electrode to an intermediate potential level of an absolute value smaller than the voltage applied for display operation between the charging voltages before and after driving the same, and wherein said charging/discharging of the data-side electrode to the intermediate potential is performed using at least one switch that short-circuits the data-side electrode and scan-side electrode of the capacitive element of the pixel, wherein said at least one switch is located in parallel with each of a positive power supply and a negative power supply for causing the capacitive element to be negatively and positively charged, respectively.