Patent ID: 7453421

Claim:
A plasma display panel (PDP) capable of dividing a frame into a plurality of subfields to display gray scales, comprising: a panel including a plurality of address electrodes and a plurality of first and second electrodes arranged to cross the address electrodes, a discharge cell being formed by an adjacent address electrode and the first and second electrodes; a driver for applying a driving voltage to the address electrode and the first and second electrodes; and a controller for controlling the driver according to input image signals, wherein the controller comprises a subfield data generator for generating subfield data for showing ON/OFF states of the discharge cell in the subfields from the image signals, a subfield data allocator for generating address data for showing ON/OFF states of discharge cells per subfield from the subfield data, and a driving controller for counting a number of discharge cells that are ON from among the discharge cells from the address data of one subfield and controlling a waveform applied to a reset period of a subsequent subfield in accordance with the number of discharge cells that are ON.