Patent ID: 6954035

Claim:
A method of driving a plasma display panel having a first electrode and a second electrode located in parallel on a first substrate and having a third electrode located on a second substrate, comprising the steps of: during a sustain period, transmitting a first sustain pulse to the first electrode and the third electrode for forming positive voltage differences between the first electrode and the second electrode and between the third electrode and the second electrode; and during the sustain period, transmitting a second sustain pulse to the second electrode for forming negative voltage difference between the first electrode and the second electrode and between the third electrode and the second electrode; wherein the first sustain pulse and the second sustain pulse are square-wave and out of phase, and a maximal voltage of the first sustain pulse and the second sustain pulse is lower than a first firing voltage between the first electrode and the second electrode and a second firing voltage between the third electrode and the second electrode.