The fluorescent material and the fluorescent display device

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PROBLEM TO BE SOLVED : To provide a CaTiO3 : Pr based fluorescent material which has a brightness higher than conventional and to provide a fluorescence display device. ?SOLUTION : A CaTiO3 : Pr, Zn, Li, RE fluorescent material is a CaTiO3 : Pr, Zn, Li based fluorescent material in which Pr, Zn and Li are added to CaTiO3as a first addition material and a second addition material, wherein one (RE) of Gd, La and Y is further added as a third addition material so that these Gd, La and Y enhance the brightness without preventing luminescence of other rear earth element and therefore the obtained brightness is higher than conventional. ?COPYRIGHT : (C)2010, JPO&INPIT ?