Patent ID: 8390608
Filing Date: 2013-03-05
Classification: G09G

Abstract:
1. A plasma display apparatus, comprising a plurality of scan electrodes and sustain electrodes; and one or more drivers configured to supply signals to the plurality of scan electrodes and sustain electrodes, wherein the signals correspond to a frame that includes a plurality of subfields, wherein the plurality of scan electrodes are divided into two or more groups including first and second groups, wherein at least one of the plurality of subfields sequentially comprises: a first scan period during which the one or more drivers are configured to supply a scan signal to the first group; a first sustain period during which the one or more drivers are configured to supply a signal having a voltage of positive polarity to the first and second groups; a second set-down period during which the one or more drivers are configured to gradually reduce the voltage of the first group and to supply a voltage of negative polarity to the second group; and a second scan period during which the one or more drivers are configured to supply a scan signal to the second group, and wherein an absolute value of a sustain bias voltage of positive polarity supplied to the sustain electrodes is larger than an absolute value of the lowest voltage of the first group in the second set-down period, as claimed (emphasis added).