Patent ID: 7391389

Claim:
A driving device of a plasma display panel having a plurality of first and second electrodes spaced apart from one another to form pairs and a plurality of cells formed between the first and second electrodes, and displaying according to the plural cells by applying drive voltages to said first and second electrodes, comprising: a first power supply having negative polarity; a second power supply having positive polarity; a scan driver connected to the plural first electrodes respectively; a first electrode common driver connected to the scan driver commonly; and a second electrode common driver connected to the plural second electrodes commonly; wherein at a first timing for lightening the plural cells, drive current flows through a connection route of the second power supply, the first electrode common driver, the scan driver, the first electrode, the cell, the second electrode, the second electrode common driver and the first power supply, and at a second timing for lightening the plural cells, drive current flows through a connection route of the second power supply, the second electrode common driver, the second electrode, the cell, the first electrode, the scan driver, the first electrode common driver and the first power supply.