Patent ID: 7911419

Claim:
A method of driving a plasma display panel having a structure in which an X electrode, a Y electrode, and a Z electrode provided between said X electrode and said Y electrode are provided and no phosphor layer is formed between said X electrode, Y electrode, and Z electrode and a discharge space, the method comprising the steps of: making one repeated period of a driving waveform applied to said Z electrode a half of one repeated period of a driving waveform applied to said X and Y electrodes; varying, after an occurrence of an auxiliary discharge within a display discharge between said X electrode, Y electrode, and Z electrode, a potential of said Z electrode from a first potential to a second potential; after the potential variation, causing a main discharge within the display discharge, which has a discharge intensity larger than that of said auxiliary discharge within the display discharge to occur; and sustaining the potential of said Z electrode at said second potential until at least said main discharge within said display discharge ends.