Fluorophore, method for producing same, light-emitting device, and image display device

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United States of America Patent

PATENT NO 9515230
APP PUB NO 20150175881A1
SERIAL NO

14416568

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Abstract

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Provided is chemically and thermally stable phosphor having light-emitting characteristics different from the conventional phosphor and high emission intensity when combined with LED of not exceeding 470 nm. The phosphor comprises inorganic compound having crystal represented by A2(D,E)5X9; crystal represented by Ca2Si5O3N6; or inorganic crystal having the same crystal structure as crystal represented by Ca2Si5O3N6, which includes A, D, E, and X elements (A is one or more kinds selected from Mg, Ca, Sr, and Ba; D is one or more kinds selected from Si, Ge, Sn, Ti, Zr, and Hf; E is one or more kinds selected from B, Al, Ga, In, Sc, Y, and La; and X is one or more kinds selected from O, N, and F), in which M element (M is one or more kinds of elements selected from Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy, and Yb) is solid-solved.

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Patent Owner(s)

  • NATIONAL INSTITUTE FOR MATERIALS SCIENCE

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Funahashi, Shiro Ibaraki, JP 12 58
Hirosaki, Naoto Ibaraki, JP 113 1750
Narimatsu, Eiichirou Ibaraki, JP 6 25
Takeda, Takashi Ibaraki, JP 329 5899

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