| 摘要 |
A method for driving a plasma display device is provided to reduce EMI(Electro Magnetic Interference) by lowering a hard switching current in X electrodes during a reset period or an address period. A frame includes plural subfields based on gray scale weighted values for time division gray scale display. Each of the subfields includes reset, address, and sustain periods(PR,PA,PS). The reset period includes a first reset period(PR1) for applying a first voltage to X electrodes, a second period(PR2) for applying ramp pulses from an energy recovering circuit, which are gradually increased from a first voltage to a second voltage, and a third reset period(PR3) for biasing the second voltage. A ramp-up voltage, which is increased from a third voltage(Vs) to a fourth voltage(Vs+Vset) after applying a first voltage during the first reset period, the third voltage during the second reset period, and a ramp-down voltage, which is decreased from the third voltage to a fifth voltage(Vnf), are applied to Y electrodes.
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