Patent ID: 7994717
Filing Date: 2011-08-09
Classification: H01J

Abstract:
1. A plasma display panel comprising: a plurality of discharge cells, with one or more of the discharge cells including: a plurality of electrodes for applying a voltage to the discharge cell; a discharge gas for forming a discharge; a discharge space in which the discharge is formed; and a phosphor film emitting visible rays by excitation caused by ultraviolet light generated by the discharge, wherein the phosphor film includes at least two layers of a phosphor layer and a reflecting layer, the phosphor layer disposed closer to the discharge space side than the reflecting layer, wherein the reflecting layer reflects at least visible rays, wherein a thickness of the phosphor film, namely, a phosphor film thickness Wt is 40 μm or less, and a thickness of the phosphor layer, namely, a phosphor layer thickness Wp, a particle diameter of a phosphor that is at least a part of the phosphor layer, namely, a phosphor particle diameter dp, a thickness of the reflecting layer, namely, a reflecting layer thickness Wr, and a particle diameter of a reflecting material that is at least a part of the reflecting layer, namely, a reflecting material particle diameter dr satisfy the relationships 2dp≦Wp≦5dp and 2dr≦Wr≦Wt−Wp, and wherein a material forming the phosphor layer and a material forming the reflecting layer have different compositions from each other.