Patent ID: 7462989

Claim:
A plasma display panel (PDP) adopting an AC surface discharge method comprising: forming a front panel including: a scan electrode and a sustain electrode both formed on a plate and to which a voltage is applied in order to generate discharge; a dielectric layer covering the scan electrode and the sustain electrode; and a protective layer formed on the dielectric layer, and forming a back panel including: an electrode protective layer covering an address electrode formed on a plate; a barrier rib formed on the electrode protective layer; and a phosphor layer provided between the barrier rib, wherein the front panel and the back panel are arranged to oppose each other, and circumference thereof is sealed together so as to form a discharge space therebetween, and wherein the protective layer on the dielectric layer is made of magnesium oxide (MgO) including silicon (Si) of which atoms count in a range from 5×10 18 pieces/cm 3 to 2×10 21 pieces/cm 3 and nitrogen (N) of which atoms count in a range from 1×10 18 pieces/cm 3 to 8×10 21 pieces/cm 3 .