Patent ID: 8199072

Claim:
A plasma display device that drives a plasma display panel including a plurality of discharge cells at intersections of a scan electrode and a sustain electrode with a plurality of data electrodes by a sub-field method in which one field period includes a plurality of sub-fields, comprising: a scan electrode driving circuit that drives said scan electrode; a sustain electrode driving circuit that drives said sustain electrode; and a data electrode driving circuit that drives said data electrodes, wherein at least one sub-field of said plurality of sub-fields includes a setup period in which wall charges of said plurality of discharge cells are adjusted such that write discharges can be performed, said scan electrode driving circuit applies a rising ramp waveform voltage to said scan electrode to generate first setup discharges between said scan electrode as an anode and said sustain electrode and said data electrodes as cathodes in a first period within said setup period, applies a dropping ramp waveform voltage to said scan electrode to generate second setup discharges between said scan electrode as a cathode and said sustain electrode and said data electrodes as anodes in a second period following said first period within said setup period, and applies a positive rectangular waveform voltage, a negative rectangular waveform voltage and a dropping ramp waveform voltage to said scan electrode in a third period following said second period within said setup period, and said data electrode driving circuit applies a positive rectangular waveform voltage to said data electrodes in a period between application of said positive rectangular waveform voltage to said scan electrode and application of said negative rectangular waveform voltage to said scan electrode in said third period.