Patent ID: 8031136
Filing Date: 2011-10-04
Classification: G09G,H01J

Abstract:
1. A plasma display apparatus, comprising: a plasma display panel including first and second electrodes formed in parallel, and a third electrode intersecting the first and second electrodes; a driver for supplying a first set-up signal to the first electrode in a first subfield period of a plurality of subfields of a frame wherein each subfield period of the frame comprises a reset period, an address period, and a sustain period, the driver for supplying a second set-up signal having a peak voltage magnitude less than a peak voltage magnitude of the first set-up signal to the second electrode in a second subfield, which is at least one of the remaining subfields of the frame other than the first subfield of the frame, and the driver for supplying a first sustain signal and a second sustain signal having a polarity opposite a polarity of the first sustain signal to the second electrode during the sustain periods of the first subfield and the second subfield while the first electrode is maintained at a second constant voltage, the first subfield being applied first among the plurality of subfields of the frame, wherein the second electrode is maintained at a first constant voltage throughout the reset period of the first subfield while the first set-up signal is supplied to the first electrode, and the first electrode is maintained at the first constant voltage while the second set-up signal is supplied to the second electrode, wherein the peak voltage magnitude of the second set-up signal substantially equals a peak voltage magnitude of the first sustain signal or the second sustain signal, wherein the first set-up signal comprises a rising ramp waveform that rises from the peak voltage magnitude of the first sustain signal or the second sustain signal to a voltage greater than the peak voltage magnitude of the first sustain signal and the second sustain signal in the reset period of the first subfield, and the second set-up signal comprises a rising ramp waveform that rises from the first constant voltage to the voltage that substantially equals the peak voltage magnitude of the first sustain signal or the second sustain signal in the reset period of the second subfield, and wherein a set-down signal is supplied to the first electrode during the reset period of the first and the second subfields after the first set-up signal and the second set-up signal are respectively supplied, the set-down signal having a slope of 10V/us or less, wherein the first set-up signal supplied to the first electrode is omitted in the second subfield, and the second set-up signal supplied to the second electrode is omitted in the first subfield, and wherein the first constant voltage is a ground voltage and the second constant voltage is a ground voltage.