Patent ID: 7342557

Claim:
A method for driving a plasma display panel having a discharge cell formed by a scan electrode, a sustain electrode, and an address electrode, wherein a frame is divided into a plurality of subfields for representing gray scales, each of the subfields having a respective weight, wherein the plurality of subfields are divided into a first group and a second group, the first group having a subfield with the lowest weight from among the plurality of the subfields, the method comprising: applying a first scan voltage and a first address voltage respectively to the scan electrode and the address electrode of the discharge cell in an address period of a subfield of the first group; and applying a second scan voltage and a second address voltage respectively to the scan electrode and the address electrode of the discharge cell in an address period of a subfield of the second group, wherein the applying of the first scan voltage and the first address voltage and the applying of the second scan voltage and the second address voltage allow discharging in the address period of the subfield of the first group to be weaker than discharging in the address period of the subfield of the second group.