Method for driving plasma display panel and plasma display device thereof

The present invention relates to a plasma display device. The plasma display apparatus includes a plurality of scan electrodes formed in the plasma display panel may comprise a first, is supplied with the divided scan signals to the second group, the scan bias voltage in at least one interval of the address period is supplied to the first and second groups to each other different, characterized in that in at least one subfield of a plurality of subfields constituting one frame of the width of the first sustain signal of a plurality of sustain signals supplied during the sustain period is larger than the width of the other sustain signals. According to the plasma display device according to the present invention, in as-division driving a plurality of scan electrodes formed in the plasma display panel into two or more groups, by varying the width of the sustain pulse according to the characteristics of the sub-fields, five address according to the loss of wall charges and reducing the discharge at the same time can improve the image quality deterioration of a display image according before sustain discharge errors. PDP, a scan electrode, a scan signal, a group of high-speed driving