Patent ID: 7916098

Claim:
A plasma display apparatus comprising: a plasma display panel including a scan electrode; and a scan driver that supplies a setup pulse to the scan electrode, the setup pulse gradually rising to a first voltage level with a first slope, rising from the first voltage level to a second voltage level with a second slope smaller than the first slope, and rising from the second voltage level to a third voltage level with a third slope different from the second slope, wherein the scan driver includes a voltage unit supplying a sustain voltage to the scan electrode, a first voltage supply unit supplying the first voltage level to the scan electrode, and a setup slope controller that receives the first voltage level and the sustain voltage and supplies the setup pulse having the first, second, and third slopes to the scan electrode, wherein the setup slope controller includes first and second switches connected in parallel to each other, a first variable resistor connected to the first switch, a second variable resistor connected to the second switch, and a capacitor whose both terminals are connected to the first voltage supply unit and the voltage unit, respectively, wherein a magnitude of the first variable resistor is different from a magnitude of the second variable resistor, and wherein the first and second switches are turned on, and thus, the first slope is formed, the first switch remains in a turn-on state and the second switch is turned off, and thus, the second slope is formed, and the first switch is turned off and the second switch is turned on, and thus, the third slope is formed.