Method for driving plasma display panel and apparatus thereof

Abstract

The present disclosure relates to a PDP, and more particularly, to a method and apparatus of driving a PDP. The method includes the steps of initializing the cells by consecutively supplying a preliminary initialization waveform in which a square wave pulse and a ramp-down waveform are combined, a first ramp-up waveform for causing a write discharge to occur, a first ramp-down waveform for causing an erase discharge to occur, a second ramp-up waveform for causing a write discharge to occur, and a second ramp-down waveform for causing the erase discharge to occur to one of the scan electrode Y and the sustain electrode Z; selecting the cells by supplying a data to the address electrodes X and supplying a scan pulse to at least one of the scan electrode Y and the sustain electrode Z; and performing a display by alternately supplying a sustain pulse to the scan electrodes Y and the address electrodes X. Therefore, an address operational margin can be secured and the number of an initialization discharge can be reduced through stabilization of initialization. It is thus possible to improve a contrast characteristic and an address discharge characteristic.

Description

[0001] This non-provisional application claims priority under 35 U.S.C. 119(a) to Patent Application No. 10-2003-0076613 filed in Korea on September 31, 2003, the entire contents of which are hereby incorporated by reference in their entirety . technical field [0002] The present invention relates to plasma display panels, and more particularly, to a method and apparatus for driving a plasma display panel. Background technique [0003] A plasma display panel (hereinafter, referred to as "PDP") is adapted to display images by irradiating fluorescent materials with ultraviolet rays generated during discharge of a mixed inert gas such as He+Xe, Ne+Xe or He+Ne+Xe. With recent technological progress, such a PDP can be made thin and large, and can provide better image quality. [0004] figure 1 is a plan view schematically showing the arrangement of a conventional 3-electrode AC surface discharge type PDP. refer to figure 1 , the existing 3-electrode AC surface discharge type...

AI Technical Summary

Problems solved by technology

[0015] However, in the conventional PDP, during the sustain period, a discharge is generated between the scan electrode Y and the sustain electrode Z, and at the same time, a discharge is generated between the scan electrode Y and the address electrode X

However, the initialization discharge of the PDP becomes unstable because of the previous wall charge state of the cell or the composition of the discharge gas

Therefore, there is a problem in that the margin for addressing work is narrow

Also, in the existing PDP, since the discharge is generated several times in the initialization of each subfield, the black brightness is high, the contrast characteristic is poor and the initialization becomes unstable

Therefore, there is a problem that address discharge characteristics are poor

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