Patent ID: 8339042

Claim:
A plasma display panel, comprising: a first panel having a substrate with an image display surface; scan electrodes and sustain electrodes arranged in parallel to a portion of the substrate; a dielectric layer disposed at the substrate to cover the scan electrodes and the sustain electrodes; and an MgO protective layer disposed at a portion of the dielectric layer, the MgO protective layer having a surface that includes a combination of a crystalline orientation structure (111) and a crystalline orientation structure (200), wherein the MgO protective layer includes columnar crystals arranged on a substrate in first columnar crystal group with the crystalline orientation structure (111), second columnar crystal group with the crystalline orientation structure (200) and third columnar crystal group with the crystalline orientation structure (220), wherein the combination includes the crystalline orientation structure (220) in a first amount, the crystalline orientation structure (111) in a second amount, and the crystalline orientation structure (200) in a third amount, the first amount being less than the second amount and the third amount and the second amount equal or larger than the third amount, wherein a third slope angle between a columnar side portion of the third columnar crystal group and a surface of the substrate is equal or larger than a second slope angle between a columnar side portion of the second columnar crystal group and the surface of the substrate, and smaller than a first slope angle between a columnar side portion of the first columnar crystal group and the surface of the substrate.