Patent ID: 7773052
Filing Date: 2010-08-10
Classification: G09G

Abstract:
1. A plasma display device, comprising: a plasma display panel displaying images by applying a sustain discharge voltage to a capacitive load, the capacitive load serving as a display element; and a slope waveform generating circuit supplying, to an electrode formed in said capacitive load, a slope waveform having a voltage which changes with a lapse of time, said slope waveform generating circuit comprising: a plurality of power supplies supplying respective, different voltages relative to the ground as the reference potential; a switching circuit being connected to outputs from the plurality of power supplies, and selecting one output out of outputs from said plurality of power supplies; and a constant current circuit being connected to one output selected by the switching circuit, and supplying to the electrode by generating the slope waveform, said switching circuit selecting one output out of outputs from the plurality of connected power supplies, following the switching signal being input to the switching circuit in accordance with a output voltage of the slope waveform generating circuit being supplied to said electrode.