Protective layer for plasma display panel and method for forming the same

Abstract

Herein is provided a protective layer for a plasma display panel and a method of forming the protective layer. The protective layer is formed on a substrate of the plasma display panel which includes sustain electrodes. Grain columns having directionality are formed in the texture of the protective layer. Because the direction of the grain columns can be controlled, the general orientation of the voids is known, and an electric field can be applied for discharge in a direction where the number of voids is smallest. As a result, the etching rate of the protective layer can be reduced, thereby increasing the lifetime of the protective layer. In addition, since discharge ions are less likely to impact the protective layer rapid emission of secondary electrons and reduced discharge delay time is realized. It is therefore possible to shorten the discharge delay time and to improve the breakdown voltage of discharge.

Dependencies are inferred from the claim text.