Patent ID: 8427053

Claim:
A plasma display panel comprising a first substrate and a second substrate opposed to each other with a discharge space therebetween filled with a discharge gas, wherein the first substrate includes: a display electrode; a dielectric layer coating the display electrode; and a protective layer on the dielectric layer, wherein the second substrate includes: address electrodes in a direction crossing the display electrode; and barrier ribs partitioning the discharge space, wherein the protective layer on the dielectric layer includes an underlying film and a plurality of aggregated particles, each of the aggregated particles being formed by a plurality of piled up crystal grains of magnesium oxide, wherein each of the aggregated particles is separately-placed and adhered on the underlying film, wherein the underlying film contains metal oxides composed of at least two oxides selected from magnesium oxide, calcium oxide, strontium oxide, and barium oxide, and wherein according to an X-ray diffraction analysis of a surface of the underlying film, in a specific plane direction, the metal oxides have a diffraction angle peak between a minimum diffraction angle and a maximum diffraction angle of simple substances of the metal oxides in the specific plane direction.