Patent ID: 7548221

Claim:
A plasma display panel device comprising: a plasma display panel having a plurality of address electrodes, a plurality of scan electrodes divided into a first scan electrode group and a second scan electrode group, and a plurality of sustain electrodes; a controller for correcting an externally-inputted image signal and outputting a corrected image signal; an address driver for generating address data signals corresponding to an address driving control signal outputted from the controller and applying the address data signals to the address electrodes; a first scan driver for generating scan pulse voltages corresponding to sustain discharge signals outputted from the controller as a scan driving signal and applying the scan pulse voltages to the scan electrodes included in one of the first scan electrode group and the second scan electrode group; a second scan driver for generating scan pulse voltages corresponding to the sustain discharge signals outputted from the controller as the scan driving signal, and applying the scan pulse voltages to the scan electrodes included in the other of the first scan electrode group and the second scan electrode group; and a sustain driver for generating sustain pulse voltages corresponding to the sustain discharge signals outputted from the controller and applying the sustain pulse voltages to the sustain electrodes, wherein each of the first scan driver and the second scan driver applies the scan pulse voltages generated respectively therefrom to the scan electrodes included in an associated one of the first scan electrode group and second scan electrode group in response to a control signal from the controller, and wherein the controller senses a sustained discharge occurring in discharge cells corresponding to the scan electrodes in one of the first scan electrode group and the second scan electrode group over a predetermined time, and, in response to such sensing of the sustained discharge, outputs the scan driving signal such that a discharge occurs in discharge cells corresponding to the scan electrodes in the other of the first scan electrode group and the second scan electrode group.