Plasma display panel apparatus and method for driving the same

A method for driving a plasma display apparatus through a driving process according to which each of a plurality of fields includes a plurality of sub-fields, the plasma display apparatus having:

• a plurality of display electrode pairs each composed of a scan electrode and a sustain electrode;
• a plurality of address electrodes that are separated from the display electrode pairs by a discharge space and that extend in a direction intersecting the display electrode pairs;
• and
• a plurality of discharge cells formed at locations corresponding to the intersections, the method being characterized in that
• at least one sub-field in each field includes an all-cell reset period in which an erase discharge is caused in all the discharge cells,
• the all-cell reset period includes:
• a first step of applying an ascending ramp waveform voltage to the scan electrodes, so that a first reset discharge is caused between each of the scan electrodes and a corresponding one of the data and/or sustain electrodes;
• a second step of applying a descending ramp waveform voltage to the scan electrodes, so that a second reset discharge is caused between each of the scan electrodes and a corresponding one of the data and/or sustain electrodes;
• and
• an excessive wall voltage erase step of applying, between the first and second steps, a potential-change waveform to at least either the scan electrodes, the sustain electrodes, or the address electrodes, so that an excessive wall voltage in each discharge cell is erased, the potential-change waveform having a ramp that is steeper than the descending ramp of the waveform voltage applied in the second step to the scan electrodes.