Patent ID: 7446735

Claim:
A method for driving a plasma display panel having a plurality of first electrodes and second electrodes extending in parallel on a first substrate, and a plurality of third electrodes which cross the first and second electrodes and are on a second substrate, wherein a plurality of discharge cells are formed by the first electrodes and second electrodes, and the third electrodes, and respective driving circuits for the first electrodes, second electrodes and third electrodes, wherein a field is divided into a plurality of subfields and then driven, each of the subfields including a reset period, an address period, and a sustain period, and the method comprising: applying a ramp voltage which gradually falls from a first voltage to a second voltage to a first electrode among the first electrodes, during the reset period; applying a third voltage and a fourth voltage respectively to the first electrode and a third electrode among the third electrodes of a discharge cell to be selected from among the discharge cells, during the address period; and alternately applying a first voltage waveform to the first electrode and a second electrode among the second electrodes, and applying at least one second voltage waveform to the first electrode, during the sustain period, wherein the first voltage waveform is different from the second voltage waveform, and wherein the second voltage waveform comprises a fifth voltage and rises from the fifth voltage to a sixth voltage.