Method for driving plasma display panel
View Patent ↗A method for driving an AC type plasma display panel includes the steps of performing initialization at least once for each frame so as to clear binary setting of wall charge quantity in a screen by discharge except for micro discharge in which electrodes covered with a plurality of fluorescent materials become cathodes, and performing special initialization at frequency of once for M frames, where M=two or more, so as to erase unnecessary wall charge in the screen by discharge in which electrodes become cathodes and that is stronger than the discharge in the initialization.
1. A method for driving an AC type plasma display panel having a screen including a plurality of cells, each cell being defined at a respective intersection of a pair of first and second display electrodes arranged in a row direction and an address electrode arranged in a column direction, the method comprising:
performing initialization at least once for each frame so as to clear binary setting of wall charge quantity in the screen by applying a ramp waveform pulse between the first and second display electrodes; and
performing special initialization at frequency of once for every M frames, where M is two or more, so as to erase unnecessary wall charges in the screen by applying at least one of a first rectangular waveform pulse between the first display electrodes and the address electrode, and a second rectangular waveform pulse between the second display electrodes and the address electrode, the first rectangular waveform pulse and the second rectangular waveform pulse being applied with a polarity in which the address electrode becomes a cathode, causing a discharge that is stronger than a discharge in the initialization, between the at least one of the first display electrodes and the address electrode, and the second display electrodes and the address electrode, respectively.