Abstract: The present invention relates to a plasma display device and to a method of producing a phosphor to be used for the device, that prevents the phosphor layer from deteriorating, and improves the luminance, life, and reliability, of a PDP. The plasma display device is equipped with a plasma display panel in which a plurality of discharge cells are arranged, phosphor layers (110R, 110G, 110B) in color corresponding to each discharge cell are disposed, and phosphor layers (110R, 110G, 110B) are excited by ultraviolet light to emit light. Green phosphor layer (110G) has a green phosphor including Zn2SiO4:Mn, the element ratio of zinc (Zn) to silicon (Si) at the proximity of its surface is 2/1, which is the stoichiometric ratio, and the layer is positively charged or zero-charged.

Abstract: The present invention relates to a plasma display device and to a method of producing a phosphor to be used for the device, that prevents the phosphor layer from deteriorating, and improves the luminance, life, and reliability, of the PDP. The plasma display device is equipped with a plasma display panel in which a plurality of discharge cells are arranged, phosphor layers (110R, 110G, 110B) in color corresponding to each discharge cell are allocated, and phosphor layers (110R, 110G, 110B) are excited by ultraviolet light to emit light. Green phosphor layer (110G) has a green phosphor including Zn2SiO4:Mn, the element ratio of zinc (Zn) to silicon (Si) is 2/1 to 2.09/1 at least at the proximity of the surface, and the layer is positively charged or zero-charged.

Abstract: A plasma display device provided with a green color phosphor which is charged entirely with a positive potential, adsorbs only limited amounts of water, carbon monoxide, carbon dioxide and hydrocarbon, and not liable to cause chemical reacttion thereto. The green color phosphor used is any one or a combination two or more kinds of phosphors selected from among compounds defined by the general formulae of M1-xAl12O19:Mnx (where “M” denotes one of Ca, Sr, Eu and Zn) having a magnetoplumbite crystal structure, (Y1-a-yGda) (Ga1-xAlx)3 (BO3)4:Tby, (Y1-a-yGda) (Ga1-xAlx)3 (BO3)4:Cey, Tby, (Y1-a-yGda) BO3:Tby and (Y1-a-yGda)3 (Ga1-xAlx)5 O12:Tby having any of an yttrium borate crystal structure and yttrium aluminate crystal structure.