Patent ID: 8188992

Claim:
A method for driving a plasma display panel having an upper plate on which a scan electrode and a sustain electrode are formed, and a lower plate on which an address electrode is formed, comprising: applying a first initialization signal to the scan electrode and a second initialization signal to the sustain electrode during an initialization period; applying a scan signal to the scan electrode, and a data signal to the address electrode during an address period; and applying sustain signals to the scan electrode and the sustain electrode during a sustain period, wherein voltages of the first and the second initialization signal increase gradually during first portion of the initialization period, and a voltage of the first initialization signal decreases gradually from a first voltage to a second voltage during a second portion of the initialization period and a voltage of the second initialization signal maintains a third voltage during the second portion of the initialization period, and wherein the scan signal fails from a scan bias voltage to a scan voltage during the address period and a first voltage is greater than the scan bias voltage.