Plasma display panel and production method thereof and plasma display panel display unit

摘要

It is an object of the present invention to provide plasma display panels having excellent electron emission properties in comparison with the conventional plasma display panels. In order to obtain such a plasma display panel, in forming a protective layer on a dielectric layer, a middle layer is provided for improving orientation property of columnar crystals that form the protective layer. By forming the middle layer, the columnar crystals formed on the middle layer have selective orientation and a greater diameter in comparison with the conventional art. Accordingly, an area of exposed surfaces became smaller and the amount of impurities absorbed in the protective layer decreases. As a result, it is possible to suppress the amount of impurities discharged while the plasma display panels discharge. The electron emission property of the plasma display panels can be thus improved.