Patent ID: 7391390
Filing Date: 2008-06-24
Classification: G09G

Abstract:
1. A plasma display panel (PDP) driver for a PDP having an address electrode, and a scan electrode and a sustain electrode arranged in pairs with the address electrode, comprising: a subfield data generator for generating subfield data from input image data, and outputting the subfield data; an address data driver for applying a voltage which corresponds to the subfield data to the address electrode; an address data determiner for detecting a subfield which has no address data from among the subfield data, and outputting a control signal so as to control a reset operation at the time of driving the detected subfield; and a scan/sustain pulse driver for applying a voltage which corresponds to the control signal provided by the address data determiner to the scan electrode and the sustain electrode, wherein the address data determiner outputs the control signal during a reset interval of the subfield without address data so that the scan/sustain pulse driver applies a first voltage level to the scan electrode to maintain the scan electrode at the first voltage level, and applies a falling ramp voltage to the scan electrode to gradually reduce the voltage to a second voltage level and maintain the second voltage level.