Patent ID: 7551150

Claim:
A plasma display apparatus, comprising: a plurality of scan electrodes; a plurality of sustain electrodes formed parallel to the plurality of the scan electrodes; and a scan driving unit for supplying sustain pulses to the plurality of the scan electrodes during a sustain period, wherein the plurality of the sustain electrodes are coupled to a ground voltage during the sustain period, and at a same time the sustain pulses of a first polarity and a second polarity opposite to the first polarity are alternately applied to the plurality of the scan electrodes, wherein the sustain pulses applied to any two adjacent scan electrodes have a same polarity, and wherein the scan driving unit includes: first switching means for supplying the sustain pulse of the first polarity to the plurality of the scan electrodes; second switching means for supplying the sustain pulse of the second polarity to the plurality of the scan electrodes; and third switching means for maintaining the plurality of the scan electrodes at the ground voltage.