Patent ID: 7616196

Claim:
A plasma display device including a plurality of scan electrodes and a scan electrode driving circuit, the scan electrode driving circuit of the plasma display device comprising: a plurality of scan electrodes; a first transistor coupled between a first power source for supplying a first voltage and a first node; a second transistor coupled between a second power source for supplying a second voltage that is lower than the first voltage and the first node; a plurality of scan circuits respectively coupled to the plurality of scan electrodes, wherein the plurality of scan circuits are adapted to selectively apply a voltage of a first input terminal and a second input terminal of the scan circuits to a corresponding one of the scan electrodes; a first capacitor comprising a first terminal coupled to the first node; a first diode coupled between a second terminal of the first capacitor and the second power source, wherein the first diode is in a path for charging the first capacitor when the first transistor is turned on; a third transistor coupled between the second input terminal of the plurality of scan circuits and the second terminal of the first capacitor; a second capacitor coupled between the second terminal of the first capacitor and the second power source; and a second diode having an anode coupled to the third transistor, and a cathode coupled to the second terminal of the first capacitor.