Patent ID: 7170473
Filing Date: 2007-01-30
Classification: G09G

Abstract:
1. A device for driving a PDP (plasma display panel) for arranging a plurality of scan electrodes and sustain electrodes in parallel for each display line, and arranging a plurality of address electrodes to be crossed with the scan electrodes and the sustain electrodes, the device comprising: a first switch and a second switch coupled in series between a first voltage and a second voltage; a capacitor coupled between a contact point of the first switch and the second switch and a third voltage; a rising ramp switch for forming a constant current is coupled to the third voltage at a first end of the rising ramp switch; and a main path switch coupled between the contact point of the first and second switches and second end of the rising ramp switch, for forming a constant current and for generating a falling ramp waveform which is a portion of a reset waveform, wherein a current path for generating the falling ramp waveform includes the main path switch and the second switch, the second switch being a sustain unit switch.