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Title:
PHOSPHOR, METHOD FOR PRODUCING SAME, LIGHT EMITTING DEVICE, AND IMAGE DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2014/003076
Kind Code:
A1
Abstract:
To provide a phosphor which is chemically and thermally stable and has high luminous intensity even in cases where the phosphor is combined with an LED of 470 nm or less. A phosphor of the present invention contains: a crystal that is represented by Li1Ba2Al1Si7N12 and contains Li element, an element A, an element D, an element E and an element X (A represents at least one element selected from among Mg, Ca, Sr, Ba, Sc, Y and La; D represents at least one element selected from among Si, Ge, Sn, Ti, Zr and Hf; E represents at least one element selected from among B, Al, Ga and In; and X represents at least one element selected from among O, N and F); a crystal that is represented by (Li, A)3(D, E)8X12; an inorganic crystal that has the same crystal structure as a crystal that is represented by Li1Ba2Al1Si7N12; or an inorganic compound wherein an element M (M represents at least one element selected from among Mn, Ce, Pr, Nd, Sm, Eu, Tb, Dy and Yb) is solid-solved in one of the above-mentioned solid solution crystals.

Inventors:
HIROSAKI NAOTO (JP)
TAKEDA TAKASHI (JP)
FUNAHASHI SHIRO (JP)
NARIMATSU EIICHIROU (JP)
Application Number:
PCT/JP2013/067571
Publication Date:
January 03, 2014
Filing Date:
June 26, 2013
Export Citation:
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Assignee:
NAT INST FOR MATERIALS SCIENCE (JP)
International Classes:
C09K11/64; C09K11/08; C09K11/59; C09K11/79; C09K11/80; H01L33/50; H01J1/63
Domestic Patent References:
WO2007066733A12007-06-14
WO2006101096A12006-09-28
WO2005019376A12005-03-03
Foreign References:
JP2010518194A2010-05-27
JP2010106127A2010-05-13
JP3668770B22005-07-06
JP3837551B22006-10-25
JP4524368B22010-08-18
JP3921545B22007-05-30
JP2005112922A2005-04-28
JP3837588B22006-10-25
JPH05152609A1993-06-18
JPH0799345A1995-04-11
JP2927279B21999-07-28
Other References:
JOURNAL OF THE AMERICAN CERAMIC SOCIETY, vol. 85, no. 5, 2002, pages 1229 - 1234
See also references of EP 2868730A4
Attorney, Agent or Firm:
AIKAWA, Toshihiko (JP)
Toshihiko Aikawa (JP)
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