DEVICE OF DRIVING A PLASMA DISPLAY PANEL

摘要

PURPOSE: A plasma display panel driving device is provided to constantly maintain brightness level in correspond to multi scanning. CONSTITUTION: The plasma display panel driving device comprises: a detection circuit for detecting a vertical frequency of a received image signal; and an adjust circuit for responding to the detected vertical frequency to adjust the number of sustain pulses in a sub-field so as to be constantly maintained an absolute value of the contrast level.