Patent ID: 7053559

Claim:
A method of driving a plasma display panel having an active area for displaying a picture and a non-display area being adjacent thereto at the upper and lower sides of the active area, wherein initialization signals are applied to at least one of scan electrodes at the active area and at least two dummy electrodes positioned within the non-display area during an initialization period of at least one sub-field and the initialization signal of the at least two dummy electrodes and the initialization signal of the at least one scan electrode are similar in shape, and signals of the at least one other dummy electrode at the non-display area and at least one of sustain electrodes at the active area are similar in shape during the initialization period and during an address period, wherein each of the initialization signal applied to the at least one of scan electrodes and the initialization signal applied to the at least two dummy electrodes includes at least one of ramp-up signal or a ramp-down signal.