A plasma display panel includes a red phosphor layer, a green phosphor layer, and a blue phosphor layer. The thickness of the red phosphor layer comprises Y(V,P)O.sub.4:Eu and (Y,Gd)BO.sub.3:Eu coated on a barrier rib and is satisfied by the following condition: when D.sub.r is (S-2L)/S, D.sub.r.gtoreq.0.64, S being a distance between barrier ribs at half the height of the barrier rib; and L being a side thickness at half the height of the barrier rib of the phosphor layer coated on the barrier rib.