Patent ID: 8405312

Claim:
A plasma display panel, comprising: a pair of plate structures disposed opposite to one another, so as to form a discharge space interposed between the plate structures, the discharge space configured to be filled with a discharge gas, and wherein a plate structure includes: a plurality of display electrode pairs, arranged on a plate, a dielectric layer covering the plurality of display electrode pairs, and a protective layer covering the dielectric layer, the protective layer including: a magnesium oxide (Mgo) film, having a main crystal orientation of ( 110 ) orientation, deposited on a surface of the dielectric layer, and a plurality of Mgo crystalline particles having a ( 100 ) crystal orientation, or a combination of a ( 100 ) crystal orientation and other crystal orientations, and being attached on the Mgo film; and, wherein when the protective layer is measured for X-ray diffraction signal intensity, a value of a peak diffraction signal intensity of a ( 220 ) surface divided by a thickness of the MgO film is expressed as P 220 in units of μm, a value of a peak diffraction signal intensity of a ( 200 ) surface divided by a coverage ratio of the plurality of MgO crystalline particles on the MgO film is expressed as P 200 in units of μm, and the ratio P 220 /P 200 is larger than or equal to 0.8.