Patent ID: 7492333
Filing Date: 2009-02-17
Classification: G09G

Abstract:
1. A plasma display device, comprising: a panel including a plurality of first electrodes and second electrodes; and a driving circuit for outputting a signal for driving the first electrodes; wherein the driving circuit comprises: a first switch coupled between a first power source and the first electrodes for supplying a first voltage to the first electrodes in a sustain period; a second switch coupled between a second power source and the first electrodes for supplying a second voltage, lower than the first voltage, to the first electrodes in the sustain period; at least one inductor having a first terminal coupled to the first electrodes; a third power source for supplying a third voltage, which is higher than half a difference between the first voltage and the second voltage; a third switch having a first terminal coupled to the third power source and a second terminal coupled to a second terminal of said at least one inductor; a fourth power source for supplying a fourth voltage, which is lower than half the difference between the first voltage and the second voltage; and a fourth switch having a first terminal coupled to the fourth power source and a second terminal coupled to the second terminal of said at least one inductor; wherein the driving circuit comprises a first capacitor, a floating power source, and a second capacitor coupled in series between a fifth power source for supplying a fifth voltage and a sixth power source for supplying a sixth voltage; and wherein the third power source includes the floating rower source and the second capacitor, and the fourth power source includes the second capacitor.