Scan drive circuit for plasma display panel

Abstract

A scan drive circuit of a plasma display panel in which first and second voltages are applied to the corresponding scan electrode lines during different reset and address periods in accordance with an input timing control signal and a third voltage for a sustain discharge is alternately applied to the corresponding scan electrode lines during a period other than the different reset and address periods, the scan drive circuit including a power switching circuit for outputting two voltages to be simultaneously used among the first, second and third voltages in accordance with the timing control signal, and line switching circuits connected to input ports of the corresponding scan electrode lines, for outputting one of the two voltages input from the power switching circuit to the corresponding scan electrode lines in accordance with the timing control signal.