Patent ID: 8203508

Claim:
A plasma display device comprising: a plasma display panel having a plurality of scan electrodes; and a scan driver coupled to the scan electrodes, the scan driver comprising a falling reset signal/scan low signal generating circuit, wherein the falling reset signal/scan low signal generating circuit comprises: a first switch electrically coupled to a scan electrode among the plurality of scan electrodes; a second switch coupled in series with the first switch; a scan low voltage source having a scan low voltage and electrically coupled to the second switch; a first driving circuit having an output terminal electrically coupled to a control terminal of the first switch and a ground terminal electrically coupled to a connection point of the first switch and the second switch; a second driving circuit having an output terminal electrically coupled to a control terminal of the second switch and a ground terminal electrically coupled to a connection point of the second switch and the scan low voltage source; a Zener diode electrically coupled between the ground terminal of the first driving circuit and the control terminal of the second switch; a resistor electrically coupled between the control terminal of the second switch and the scan low voltage source; and a diode for preventing a countercurrent electrically coupled between the ground terminal of the first driving circuit and the Zener diode.