Abstract: A technology for the four-electrode type PDP for preventing the lowering of luminance depending on the display load ratio due to the voltage drop at electrode by mitigating concentration of discharge timing. On a front substrate of a PDP (10), a first (X) electrode, a second (Y) electrode, and a third (Z) electrode therebetween are arranged in parallel in a first direction. Between Substrates, barrier ribs for sectioning cells 3 of respective colors of R, G, B and phosphor layers of respective colors are provided. In the respective cells (3), an interval of the X, Y electrodes is roughly constant. It is a structure where intervals between the X, Y electrodes and the Z electrode (XZ, YZ) are different. Particularly, an interval of R is narrow and an interval of B is wide.

Abstract: A plasma display panel, the light emission efficiency of which has been improved without increasing the discharge start voltage, is disclosed. In a three-electrode type PDP, a fourth (Z) electrode is provided at the portion between a first (X) electrode and a second (Y) electrode between which a main discharge (a sustain discharge) is caused to occur for a display and at least one of the distance between the first electrode and the fourth electrode and the distance between the second electrode and the fourth electrode changes gradually in a cell.