Patent ID: 8274222

Claim:
A plasma display panel comprising: a front plate; and a rear plate disposed so as to face the front plate, wherein the front plate includes display electrodes, a dielectric layer formed to coat the display electrodes, and a protective layer formed to coat the dielectric layer, wherein the protective layer includes a base film formed on the dielectric layer, and a plurality of aggregated particles dispersed in the base film, wherein each of the aggregated particles includes a plurality of nanocrystalline particles aggregated together by static electricity or van der Waals' force, wherein each of the nanocrystalline particles is made of magnesium oxide and has an average particle diameter in the range of at least 10 nm to at most 100 nm, wherein the aggregated particles have an average particle diameter at least twice to at most four times as large as a film thickness of the base film, and wherein the plurality of aggregated particles protrude from the base film toward a discharge space formed between the front plate and the rear plate.