Disclosed therein a method of driving a plasma display panel, which can improve display quality. The method is separately driven by a data driving period for supplying a driving waveform and a preliminary period for raising voltages for supplying the driving waveform up to a desired voltage, in order to display an image in each discharge cell, wherein a waveform supplied to electrodes during a sustain period of the data driving period is different from a waveform supplied to the electrodes during a sustain period of the preliminary period. The method does not create a sustain discharge during a sustain period and prevents an afterimage caused by a previous state when the PDP is turned on from being displayed, improving display quality. Moreover, charges within a discharge cell are eliminated by supplying a ground voltage to electrodes for 1 to 3 seconds, preferably 2 seconds, before a data driving waveform is supplied. Therefore, an afterimage is prevented from being displayed on the entire screen, and display quality can be improved.

 
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> Display device and driving method thereof

> High-pressure discharge lamp having electrically conductive transparent coating

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