Patent ID: 7990066
Filing Date: 2011-08-02
Classification: G09G,H01J

Abstract:
1. A plasma display panel comprising: a front substrate; a rear substrate positioned to be opposite to the front substrate; a barrier rib that is positioned between the front substrate and the rear substrate and that partitions a discharge cell; and a phosphor layer positioned inside the discharge cell, the phosphor layer including a first phosphor layer for emitting red light, a second phosphor layer for emitting blue light, and a third phosphor layer for emitting green light, wherein the first phosphor layer includes a red pigment, at least one of the first phosphor layer, the second phosphor layer or the third phosphor layer includes magnesium oxide (MgO) material, and the second phosphor layer includes a blue pigment containing a Ni-based material, wherein when a content of the red pigment is 0.5 part by weight, a reflectance is equal to or less than about 50% at a wavelength of 400 nm to 550 nm measured when a light is directly irradiated on the barrier rib and the first phosphor layer in a state where the front substrate is removed, wherein the magnesium oxide (MgO) material is (111), (222), (444)-oriented MgO materials, and wherein when a content of the red pigment is 0.5 parts by weight and a content of the blue pigment is 1.0 parts by weight, a panel reflectance ranges from 27.5% to 29.5% at a wavelength of 500 nm to 600 nm measured in a panel state in which the front substrate and the rear substrate coalesce with each other.