Plasma display panel and plasma display apparatus

A plasma display panel comprising

• a discharge cell having:
• a first substrate;
• a second substrate provided to face the first substrate;
• a discharge space configuring a gap between the first substrate and the second substrate;
• a phosphor portion contacting with the discharge space and emitting visible rays by excitation caused by ultraviolet light;
• a reflecting portion contacting with the phosphor portion on an opposite side to the discharge space side;
• a first electrode provided on one of the first substrate and the second substrate;
• a second electrode provided on one of the first substrate and the second substrate;
• and
• gas filled in the discharge space to emit ultraviolet light by discharge between the first electrode and the second electrode,
• wherein an average particle size of particles contained in the reflecting portion is in a range of 180 nm to 800 nm, and
• a reflectivity of the reflecting portion to visible rays is 85% or higher.

A plasma display device having a plasma display panel comprising

• a discharge cell having:
• a discharge space;
• a phosphor film which contacts with the discharge space;
• a holding portion which sections the display space and holds the phosphor film on an opposite side to the discharge space side;
• and
• gas which is filled in the discharge space to emit ultraviolet light by discharge,
• wherein the phosphor film comprises a phosphor layer which emits visible rays by excitation caused by ultraviolet light and a reflecting layer reflecting visible rays,
• the phosphor layer is provided between the reflecting layer and the discharge space,
• a film thickness of the reflecting layer is 15 μm or less, and
• the refractive index of the reflecting layer is 1.7 or more.