Method of driving plasma display panel and plasma display device driven using the method

A method of selectively performing a reset discharge in a plasma display panel (PDP) and a plasma display device driven by the method are disclosed. In one embodiment, a display image is represented by a plurality of unit frames, and each unit frame is divided into a plurality of sub-fields, and each of the sub-fields includes, in order, a reset period when all discharge cells are initialized, an address period when a discharge cell that is turned on or off is selected from all discharge cells, and a sustain period when a sustain discharge is performed for a discharge cell selected to be turned on in the address period. Furthermore, a reset discharge is performed to initialize all discharge cells in the reset period of the first sub-field of the unit frame, and to initialize only discharge cells, in which a sustain discharge has been previously performed in the sustain periods, in the reset periods of the sub-fields after the second sub-field.