Patent ID: 7825874

Claim:
A method for driving a plasma display panel having a discharge cell formed by a first electrode and a second electrode, the method comprising: during initialization at turn on of the plasma display panel, in a reset period, increasing a voltage at the first electrode from a first voltage to a second voltage, reducing a voltage at the first electrode from a fourth voltage to a fifth voltage while a third voltage is applied to the second electrode, and thus forming wall charges on the discharge cell; and in a sustain period immediately following the reset period, discharging the discharge cell by applying a voltage to the first electrode and the second electrode to establish a voltage obtained by subtracting the voltage at the first electrode from the voltage at the second electrode of the discharge cell to alternately be a sixth voltage and negative voltage of the sixth voltage, wherein when the plasma display panel discharges cells in response to an input image signal driven by frames, a frame having a plurality of subfields, a subfield having a reset period, an address period, and a sustain period, in the reset period, a seventh voltage is applied to the second electrode and the voltage at the first electrode is reduced from an eighth voltage to a ninth voltage, and wherein a difference between the third voltage and the fifth voltage is greater than a difference between the seventh voltage and the ninth voltage.