| 摘要 |
A method and apparatus of driving a plasma display panel wherein an abnormal discharge generated from a non-display area can be prevented to thereby improve a picture quality. In the method and apparatus, a ramp-up waveform (Ramp-up) followed by a ramp-down waveform (Ramp-down) is applied simultaneously, during an initialization period to all scan electrodes (Y) of an active area and dummy scan electrodes (UY,BY) of the non-display area. At the time of the application of the ramp-down waveform, the Z dummy electrodes (UZ,BZ) and the Z electrodes of the active area maintain a positive voltage (Zdc) until the end of the address period to bind negative space and wall charges to the dummy Z electrodes. During the address period also, to the scan electrodes of the non-display areas is applied a waveform Vbias to erase a majority of excessive wall charges left within the non-display area. <IMAGE> |
