Patent ID: 6492964
Filing Date: 2002-12-10
Classification: G09G

Abstract:
A driving method of a plasma display panel having mâ€³+2 scan electrodes and n data electrodes, where while among an mÃ—n matrix plasma display panel having mâ€³+2 scan electrodes and n data electrodes, the 2 outmost electrodes at the one side among the mâ€³+2 scan electrodes are provided as preliminary discharge electrodes, and while the mâ€³ scan electrodes consist of pairs of mâ€³ sustaining electrodes Y1, Y2, . . . , Ymâ€³ and mâ€³ common electrodes X1, X2, . . . , Xmâ€³, the sustaining electrodes are divided into i groups of commonly connected Y electrodes (Y1, Y2, . . . , Yp), (Yp+1, Yp+2, . . . , Y2p), . . . , (Ymâ€³âˆ’p+1, Ymâ€³âˆ’p+2, . . . , Ymâ€³), each group consisting of p neighboring electrodes commonly connected thereto, and tile common electrodes are divided into j groups of commonly connected X electrodes, (X1, X1+j, X1+2j, . . . , Xmâ€³âˆ’j+1), (X2, X2j, X2+2j, . . . , Xmâ€³âˆ’j+2), . . . , (Xj, X2j, X3j, . . . , Xmâ€³), each group consisting of q electrodes commonly connected thereto which each are at (j+1)th position from j common electrodes at one side, wherein the driving method includes:an initialization step of completely erasing a wall charge created t subfield during a previous step, the initialization step comprising a step of applying preliminary discharge pulses of substantially same width, substantially same amplitude, and opposite polarity to the two preliminary discharge electrodes; and an address discharge step of selecting and priming a pixel corresponding to image information, wherein the address discharge step includes steps of: impressing sequentially to the groups of commonly connected X electrodes first pulses having an amplitude of a second voltage with reference to a first voltage of reference voltage impressed to the scan electrodes, and a width smaller than that of the driving signal pulses of the data electrodes, and impressing sequentially to the groups of commonly connected Y electrodes second pulses having an amplitude of a third voltage having a polarity opposite to that of the second voltage with reference to a first voltage and a width of the period for which the first pulses are impressed once respectively to all the groups of commonly connected X electrodes.