The inorganic EL element and green-emitting phosphor

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PROBLEM TO BE SOLVED : To provide a green phosphor which does not use rare earth elements and can be stably supplied. ?SOLUTION : The green-emitting phosphor includes a parent material of a compound represented by general formula : M1M22S4(wherein, M1is CaXSr1-X(0≤X≤1), and M2is GaYAl1-Y(0≤Y≤1)) and bismuth contained in the parent material. The parent material preferably further contains manganese. ?COPYRIGHT : (C)2010, JPO&INPIT ?