Patent ID: 6373451
Filing Date: 2002-04-16
Classification: G09G

Abstract:
An AC plasma display panel driving method for driving a picture of a frame with a realization of gray scales by dividing each horizontal synchronous period into a plurality of periods, sustaining and selectively emitting light during the plurality of periods by sequentially applying a different number of sustaining pulses to scanning electrodes and common electrodes during each divided period in a kÃ—n matrix AC plasma display panel where k electrode pairs, each of which is comprised of first and second electrodes formed in parallel on each surface of two substrates opposite to each other, are arranged in strips and n third electrodes are arranged in strips to cross the electrode pairs, each of which is comprised of the first and second electrodes, when common wiring groups are formed by wiring an m number of second electrodes into one node as a common electrode and the first electrodes are individually installed as a scanning electrode in the electrode pair, comprising the steps of:(a) applying a sustaining pulse to the scanning electrode to alternate with a sustaining pulse applied to the common electrode; (b) setting an address time slot comprised of m data in a temporal marginal period secured to the sustaining pulse applied to m scanning electrodes corresponding to the common electrodes of a common electrode groups, each of which is comprised of m common electrodes, performing addressing by assigning the data of the respective address time slots to the time slots of a plurality of sub fields, and applying one-scan pulse to each of the m scanning electrodes so as to be synchronized with the m data, wherein the scan pulses exist above a first bias pulse of a predetermined electric potential applied between the sustaining pulses; and (c) applying a second bias pulse of a predetermined voltage to the common electrodes of each common electrode group in a period when the address time slot which exists between the sustaining pulses exists, simultaneously with the step (b).