Patent ID: 8044886

Claim:
A plasma display apparatus, comprising: a plasma display panel including a plurality of scan electrodes and sustain electrodes formed on an upper substrate, and a plurality of address electrodes formed on a lower substrate; and a driver for supplying driving signals to the plurality of electrodes, wherein the plurality of scan electrodes are divided into first and second groups and then supplied with scan signals, and scan bias voltages supplied to the first and second groups in at least any one period of an address period are different from each other, in at least one of a plurality of subfields constituting one frame, a width of a first sustain signal of a plurality of sustain signals supplied during a sustain period is larger than a width of second, third, and fourth sustain signals of the plurality of sustain signals, and the first and third sustain signals being supplied to the scan electrodes, and the second and fourth sustain signals being supplied to the sustain electrodes, wherein the width of the third sustain signal of the plurality of sustain signals is larger than the width of the fourth sustain signal of the plurality of sustain signals.