Patent ID: 6337673
Filing Date: 2002-01-08
Classification: G09G

Abstract:
A plasma display device for displaying an image comprising:a plasma display panel including a plurality of row electrodes formed in pairs and extending in parallel with each other in the horizontal direction, a plurality of column electrodes extending in the vertical direction and facing said paired row electrodes with a discharge space intervening therebetween to form unit light emitting regions at respective intersections with said paired row electrodes, and a dielectric layer for covering up said paired row electrodes with respect to said discharge space; means for applying a scan pulse to every pair of row electrodes and simultaneously applying a pixel data pulse to every column electrode to select light emitting pixels and non-light emitting pixels during an addressing period; and means for applying a series of sustain pulses alternately to one of the row electrode pair and the other thereof to sustain discharges for said light emitting pixels and said non-light emitting pixels during a discharge sustaining period, wherein each of said sustain pulses has a waveform exhibiting gentle rising or falling at a leading edge thereof, as compared with said scan pulse, whereby limiting each of said sustaining discharges in a region near a discharge gap formed between paired row electrodes within said unit light emitting region, wherein said means for applying the sustain pulses comprises: a DC power source for generating DC voltage having a positive side and negative side terminals; a first capacitor connected in parallel with said DC power source; a coil having a first end connected to the positive side terminal of said DC power source and a second end opposite thereto; switching means for alternately performing a connection and a disconnection between the second end of said coil and the negative side terminal of said DC power source; a diode having a cathode connected to the second end of said coil and an anode connected to the negative side terminal of said DC power source; and a second capacitor connected in parallel with said diode, wherein said coil outputs the sustain pulse at the second end thereof in accordance with an operation of said switching means.