Patent ID: 7482755

Claim:
A plasma display panel comprising at least display electrodes, a dielectric layer covering the display electrodes, barrier ribs, and discharge spaces, in which discharge gas is filled in the discharge spaces to form a plurality of discharge cells, wherein, in each of said discharge cells, said display electrode has a projection extending in a column direction from an electrode body extending in a row direction, and the projection forms a discharge gap together with an adjacent paired projection of the other display electrode, in each of the discharge cells, when viewed from a front of said plasma display panel, an area of a region where discharge effectively expands is defined as an effective discharge area, in each of said discharge cells, an area of a region where discharge effectively expands and electrodes are present is defined as an effective electrode area, and when a ratio of said effective electrode area to said effective discharge area is assumed as Z and a relative dielectric constant of said dielectric layer is assumed as ∈r, 3≦∈r≦14, 0.15≦Z≦0.8 and −0.0614·∈r+0.47≦Z≦−0.0614·∈r+1.46 are satisfied.