Patent ID: 7012579

Claim:
A method for driving a plasma display panel having a scan electrode, a sustain electrode, and an address electrode, the method comprising: applying a ramp wave form to the scan electrode, the ramp wave form having an increasing period and a decreasing period during a reset period; and applying a pulse to the sustain electrode simultaneously with the ramp wave form being applied to the scan electrode, the pulse having a period of increase during the increasing period of the ramp wave form and having a period of maintaining a voltage at a constant level during the decreasing period of the ramp wave form, wherein the ramp wave form, which is applied to the scan electrode during the reset period, has a flat period between the increasing period and the decreasing period, and wherein the period of increase, which is applied to the sustain electrode during the reset period, is a wave form having a voltage increasing from an ending point of the increasing period of the ramp wave form being applied to the scan electrode during the reset period until a starting point of the decreasing period of the ramp wave form being applied to the scan electrode during the reset period, and wherein a voltage level of the pulse wave form applied to the sustain electrode during the period of maintaining a voltage at a constant level of the sustain electrode during the reset period is lower than a voltage level of the pulse wave form applied to the sustain electrode during an address period.