Patent ID: 7499005

Claim:
A method for driving a plasma display panel including a first substrate and a second substrate facing each other with a plurality of discharge cells therebetween, a plurality of address electrodes arranged on the first substrate, a plurality of scan electrodes and a plurality of sustain electrodes alternately arranged on the second substrate, and wherein a discharge cell comprises a first sustain electrode, a second sustain electrode, and a scan electrode, the method comprising: applying a scan voltage to the scan electrode and applying an address voltage to an address electrode to perform an address discharge; alternately applying a sustain discharge voltage to the scan electrode and either the first sustain electrode or the second sustain electrode to perform a sustain discharge at an addressed discharge cell in a sustain period; and driving the plasma display panel through a plurality of subfields including a first subfield and a second subfield, wherein a sustain discharge voltage is alternately applied to the scan electrode and to either the first sustain electrode or the second sustain electrode in a sustain period of the first subfield; and wherein a sustain discharge voltage is alternately applied to the scan electrode and to the first sustain electrode and the second sustain electrode in a sustain period of the second subfield.