Plasma display panel having a protective layer which includes aggregated particles

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.