| 摘要 |
A plasma display device is provided to reduce the number of driving voltage sources by using a common voltage source for supplying sustain pulse voltage, setup bias voltage, setup ramp voltage, setdown pulse voltage, and scan pulse voltage. A plasma display device includes a plasma display panel and a scan driving unit for using a common voltage source for supplying sustain pulse voltage, setup bias voltage, setup ramp voltage, setdown pulse voltage, and scan pulse voltage among plural driving voltages supplied to scan electrodes(Y) of the plasma display panel. The scan driving unit has the common voltage source(Vs) having one grounded end; a sustain pulse/setup bias supply unit(51) connected between the common voltage source and the scan electrode to supply the sustain pulse and setup bias voltages to the scan electrode; a setup ramp supply unit(52) connected between the sustain pulse/setup bias supply unit and the scan electrode to feed setup ramp voltage to the scan electrode; a setdown pulse/scan pulse supply unit(53) connected between the sustain pulse/setup bias supply unit and the scan electrode to supply the setdown pulse and scan pulse voltages to the scan electrode; and a first switch(S1) installed between the sustain pulse/setup bias supply unit and the setdown pulse/scan pulse supply unit.
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