Patent ID: 7911418
Filing Date: 2011-03-22
Classification: G09G

Abstract:
1. A driving method of a plasma display panel having a plurality of discharge cells including a display electrode pair, the display electrode pair being formed of a scan electrode and a sustain electrode, the driving method comprising: providing one field with a plurality of subfields, each of the subfields having an initializing period, and address period, and a sustain period; performing an all-cell initializing operation of causing initializing discharge in all discharge cells or a selective initializing operation of causing initializing discharge in a discharge cell that has caused sustain discharge in just previous sustain period, in the initializing period of each of the subfields; and providing an abnormal charge erasing period for applying voltage to the scan electrode in a subfield selected based on an image signal, wherein the abnormal charge erasing period is provided only in a selected first subfield after the all-cell initializing operation is performed, when the image signal indicates displaying a black image, wherein the abnormal charge erasing period is provided in at least one other selected subfield after the selected first subfield, when the image signal indicates displaying a non-black image.