Patent ID: 8094093
Filing Date: 2012-01-10
Classification: G09G

Abstract:
1. A driving method of a plasma display apparatus displaying an image by employing plural subfields, wherein said subfield includes a sustain period, the driving method comprising: applying a first sustain pulse which produces a one time discharge during a rising thereof, and a second sustain pulse, which has a pulse width wider than said first sustain pulse and produces a two times discharge during the rising thereof by applying a first voltage and thereafter applying a second voltage higher than the first voltage, during said sustain period; increasing a ratio of replacing said first sustain pulse with said second sustain pulse, as a display load factor of said image is increased and a total sustain pulse number is decreased, in a subfield having a sustain period in which said first and/or second sustain pulses are applied repeatedly; and controlling to determine a replacement number of the first sustain pulses which are replaced with the second sustain pulse in each subfield, according to an available number of the first sustain pulses which can be replaced with the second sustain pulse in a frame, and a luminance ratio of the plurality of subfields in the frame.