PLASMA DISPLAY DEVICE

摘要

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 reaction thereto. The green color phosphor used is a combination of any of phosphors defined by the general formula of MMg 1-x Al 11 O 19 :Mn x (where "M" denotes one of La and Ce) having a magnetoplumbite crystal structure, yttrium borate group and yttrium aluminate group phosphors defined by the general formulae of (Y 1-a-y Gd a ) BO 3 :Tb y , (Y 1-a-y Gd a ) (Ga 1-x Al x ) 3 (BO 3 ) 4 :Tb y , (Y 1-a-y Gd a ) (Ga 1-x Al) 3 (BO 3 ) 4 :Cey, Tby, (Y 1-y ) 3 (Ga 1-x Al x ) 5 O 12 :Tb y and La Mg 1-x Al 11 O 19 : Ce x , Tb x .