Plasma display panel and fabrication method of the same
View Patent ↗A protection film for protecting a dielectric layer of an AC type PDP is formed such that impurity metal ion densities of the protection film of the PDP, which is aged, become 400 ppm or less, respectively, and the protection film contains three or more hydrogen atoms assuming that the total number of atoms of the protection film is 100.
1. A plasma display panel comprising: a first substrate having electrodes covered by a dielectric layer; a second substrate provided in an opposing relation to said first substrate; discharge gas sealed in a gap between said first substrate and said second substrate; and a protection film formed on said dielectric layer, said protection film functioning to protect said dielectric layer from discharge, ion densities of respective impurity metals contained in said protection film being 400 ppm or less and said protection film containing at least three percent hydrogen atoms where the total number of atoms contained in said protection film is 100 percent.
2. A plasma display panel as claimed in claim 1 , wherein said protection film is a magnesium oxide film.
3. A plasma display panel as claimed in claim 2 , wherein said impurity metal comprises at least one metal selected from the group consisting a Na, Al, K, Ca, V, Cr, Mn, Fe, Co, Ni, Cu and Zn.
4. A plasma display panel as claimed in claim 2 , wherein a conductivity of said magnesium oxide film is 1×10 −11 and or Zn.