Patent ID: 7570229

Claim:
A method for dividing a frame into a plurality of subfields and driving the same in a plasma display panel having a plurality of first electrodes, second electrodes, and address electrodes, comprising: in at least one subfield, (a) applying a reset waveform to the first electrode to establish a discharge cell to be addressed while the second electrode is biased with a first voltage, in a reset period; (b) sequentially applying a second voltage to the first electrode while the second electrode is biased with the first voltage, in an address period; (c) applying a third voltage which is greater than the first voltage to the first electrode for a sustain discharge while the second electrode is biased with the first voltage, in a sustain period; and (d) applying a fourth voltage which is less than the first voltage to the first electrode for a sustain discharge while the second electrode is biased with the first voltage, in the sustain period, wherein an absolute value of the difference between a peak value of the third voltage and the first voltage, in the sustain period, is greater than an absolute value of the difference between a peak value of the fourth voltage and the first voltage, in the sustain period, and wherein the first voltage is a ground voltage.