Patent ID: 7755576

Claim:
A device for driving a plasma display panel including a plurality of first electrodes and a plurality of second electrodes, comprising: a first driver coupled to a first electrode of the plurality of first electrodes for applying a first voltage to the first electrode for selecting a discharge cell coupled to the first electrode during an address period; a second driver coupled to the first electrode for applying a reset waveform to the first electrode during a reset period; and a third driver, coupled to the first electrode, for applying a sustain discharge pulse which swings between a second voltage being higher than a fourth voltage and a third voltage being lower than the fourth voltage to the first electrode during a sustain period, wherein a second electrode of the plurality of second electrodes is configured to continuously remain biased at the fourth voltage during the reset period, the address period, and the sustain period, wherein the second driver is configured to apply a waveform which ramps down from the fourth voltage to a sixth voltage to the first electrode, the sixth voltage being less than the third voltage and higher than the first voltage, wherein the third driver is configured to repeat an operation for applying the second voltage to the first electrode, and an operation for applying the third voltage to the first electrode, and wherein the third voltage applied in the sustain period is higher than the first voltage applied to the first electrode in the address period.