1. A plasma display panel, comprising: a plurality of address electrodes, and corresponding pluralities of scan electrodes and sustain electrodes arranged in pairs; a controller adapted to accept external video signals and generate and output subfield data and sustain pulse information corresponding to the respective subfields, control voltage application such that a floating state and a voltage application state are repeatedly alternated to bring at least one electrode from a first voltage to a second voltage in the reset period, control a voltage application period for the voltage application state or a floating period for the floating state according to the subfield data, the subfield data comprising at least the number of addressed cells called for in previous subfield data, and output a control signal embodying the control of voltage application and the control of the voltage application time or floating time; an address data driver adapted to apply a voltage that corresponds to the subfield data to the address electrode; a sustain electrode driver adapted to apply sustain voltages to the sustain electrode according to the sustain pulse information output by the controller; and a scan electrode driver adapted to control the floating period or the voltage application period according to the control signal, and to apply scan voltages to the scan electrode according to the sustain pulse information.