Patent ID: 7612740

Claim:
A method for driving a plasma display device having a plurality of first electrodes and a plurality of second electrodes, one frame for driving the plasma display device being divided into a plurality of subfields, each subfield including a reset period, an address period, and a sustain period, the method comprising, during a sustain period of each subfield among the plurality of subfields: alternately applying a plurality of sustain discharge pulses to the first electrode and the second electrode for triggering a sustain discharge; and setting a width of a last sustain discharge pulse applied to the second electrode, the last sustain discharge pulse applied to the second electrode having a greater width than other sustain discharge pulses applied during the sustain period of the subfield when a total number of the sustain discharge pulses applied during the sustain period of the subfield is less than a predetermined number and having a width equal to the other sustain discharge pulses when the total number of the sustain discharge pulses applied during the sustain period of the subfield is greater than or equal to the predetermined number.