| 摘要 |
PROBLEM TO BE SOLVED: To provide a cobalt-blue blue pigment-adhered fluorescent substance, which pigment has a strong adhesion force to the fluorescent substance, does not change the body color by the irradiation of electron beams, and has good electron beam resistance and heat resistance. SOLUTION: The pigment-adhered fluorescent substance is prepared by adhering cobalt-blue blue pigment particles comprising an complex oxide of cobalt oxide (CoO) with aluminum oxide (Al<SB>2</SB>O<SB>3</SB>) as pigment particles to the surface of the fluorescent substance, wherein the pigment particles have an average particle diameter of 0.05 to 0.20μm and a diffraction peak half value width of≤0.30°at a diffraction angle (2θ) of 31.1°in a powder diffraction X-ray spectrum using Cu-Kα1 characteristic X-rays. COPYRIGHT: (C)2003,JPO
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