Patent ID: 7755572

Claim:
A plasma display apparatus, comprising: a plasma display panel having scan electrodes and sustain electrodes; a scan driver for supplying a first pulse to the scan electrodes before a reset period of a first subfield, a first reset pulse gradually decreasing after maintaining a constant voltage equal to a maximum voltage of the reset period to the scan electrodes during the reset period, and a second reset pulse having a voltage greater than the constant voltage of the first reset pulse to the scan electrodes during a reset period of a second subfield; and a sustain driver for supplying a second pulse with a polarity opposite a polarity of the first pulse to the sustain electrodes corresponding to the first pulse before the reset period, wherein a maximum voltage of the first reset pulse is substantially equal to a sustain voltage that is applied to the scan electrodes in the sustain period by using wall charge applied between the scan electrodes and the sustain electrodes due to the first pulse and the second pulse before the reset period of the first subfield.