Patent ID: 6538392
Filing Date: 2003-03-25
Classification: G09G

Abstract:
A method of driving a plasma display panel, comprising plural first and second electrodes arranged by turns and plural third electrodes provided so as to be apart from and perpendicular to said plural first and second electrodes, in which display cells are formed at crossings of said plural first and second electrodes and said plural third electrodes, and a reset period during which said display cells are initialized, an address period during which said display cells are set to appropriate states according to display data, and a sustain discharge period during which sustain discharge pulses of opposite polarities are applied alternately between said plural, first and second electrodes to selectively cause a light emission in said display cells that have been set to appropriate states according to said display data, are provided, wherein said driving method is characterized in that wall charges of a polarity opposite to those in a lit cell are left on said first and second electrodes in an unlit cell when said address period is completed; and said sustain discharge pulses of opposite polarities have first sustain discharge pulses of a first polarity and second sustain discharge pulses of the other polarity, an absolute value of a maximum voltage of at least part of said first sustain discharge pulses is greater than that of said second sustain discharge pulses, the polarity of said first sustain discharge pulses is opposite to that of voltage of the wall charges remaining in said unlit cell, the polarity of said second sustain discharge pulses is the same as that of a voltage of the wall charges remaining in said unlit cell, and a voltage of said first and second sustain discharge pulses overlapped by that of the wall charges remaining in said unlit cell is set so as to be lower than a discharge start voltage.