Patent ID: 7268492

Claim:
A plasma display device provided with a plasma display panel comprising a plurality of columns of discharge cells having one of a single color and multiple colors, and a phosphor layer disposed in each of the discharge cells, the phosphor layer having a color corresponding to the each discharge cell for emitting light when excited by ultraviolet rays, wherein the phosphor layer includes a green color phosphor comprising a mixture of a phosphor material defined by a general formula of MMg 1-x Al 11 O 19 :Mn x (where M denotes one of La and Ce) and one of phosphor materials defined by general formulae of (Y 1-a-y Gd a )(Ga 1-x Al x ) 3 (BO 3 ) 4 :Tb y and (Y 1-a-y Gd a )(Ga 1-x Al x ) 3 )BO 3 ) 4 :Ce y ,Tb y .