RESET DRIVING UNIT OF PLASMA DISPLAY PANEL

摘要

PURPOSE: A reset driving unit of a plasma display panel(PDP) is provided which has a simple circuit configuration using a constant voltage source to supply a bias voltage to a scan electrode during a reset period. CONSTITUTION: A sustain driving part(40) supplies a reference voltage to a scan electrode(12Y) during a reset period, and a ramp waveform supply part(45) supplies a rising ramp wave and a falling ramp wave to the above scan electrode. And a constant voltage source(ZDb) is installed between a base voltage source(GND) and the above ramp waveform supply part and supplies a constant DC voltage higher than a ground voltage to the above scan electrode after the falling ramp wave is supplied. The constant voltage source is a zener diode, and a rating voltage of the zener diode is in the range of 15V-25V according to a panel size.