| 摘要 |
Phosphors for a display, which emit blue light and green light, comprise zinc sulfide phosphors having a crystal structure of a hexagonal system. The zinc sulfide phosphor which emits blue light has an average particle diameter in a range of (0.0169xV<SUB>E</SUB><SUP>1.9</SUP>+2.49)±20%[mum] when an electron beam has an acceleration voltage V<SUB>E</SUB>. The zinc sulfide phosphor which emits green light has an average particle diameter in a range of (0.017xV<SUB>E</SUB><SUP>1.9</SUP>+2.58)±20%[mum]. A phosphor for a display, which emits red light, comprises a yttrium oxysulfide phosphor or a yttrium oxide phosphor and has an average particle diameter in a range of (0.023xV<SUB>E</SUB><SUP>1.95</SUP>+2.88)±20%[mum]. These phosphors for a display are used for a display which has an electron beam having an acceleration voltage of 3 kV to 15 kV as an excitation source.
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