Patent ID: 8400058

Claim:
A plasma display panel comprising a pair of plate structures opposing to each other interposing a discharge space formed with filling a discharge gas, and one of the pair of plate structures includes a plurality of display electrode pairs arranged on a plate, a dielectric layer covering the plurality of discharge electrode pairs, and a protective layer covering the dielectric layer, wherein the protective layer includes an MgO (magnesium oxide) film stacked on a surface of the dielectric layer, and a plurality of MgO crystal particles spread out on the MgO film in a region corresponding to all cells of the plasma display; a covering ratio of the plurality of MgO crystal particles on a surface of the MgO film in the region corresponding to all cells is 10% or lower; an accumulation 10% value in an accumulation grain size distribution of the plurality of MgO crystal particles is made to be 0.77 μm or larger to 1.16 μm or smaller, an MgO crystal single particle forming the MgO crystal particles has a cubic form; and a standardized value of (200) plane is larger than or the same as the value of (111) plane according to an X-ray diffraction signal intensity measurement on (200) plane per 1 μm thickness of the MgO film.