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1. (WO2009066452) BLUE PHOSPHOR
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2009/066452    International Application No.:    PCT/JP2008/003384
Publication Date: 28.05.2009 International Filing Date: 19.11.2008
C09K 11/64 (2006.01), C09K 11/08 (2006.01), H01J 1/63 (2006.01), H01J 11/02 (2006.01), H01J 29/20 (2006.01), H05B 33/14 (2006.01), H01L 33/50 (2010.01)
Applicants: TOTTORI UNIVERSITY [JP/JP]; 4-101, Koyamacho-Minami, Tottori-shi, Tottori 6808550 (JP) (For All Designated States Except US).
MITSUI MINING & SMELTING CO., LTD. [JP/JP]; 11-1, Osaki 1-chome, Shinagawa-ku, Tokyo 1418584 (JP) (For All Designated States Except US).
OHMI, Koutoku [JP/JP]; (JP) (For US Only).
OHASHI, Tsuyoshi [JP/JP]; (JP) (For US Only).
HIGUCHI, Makoto [JP/JP]; (JP) (For US Only).
SASAKURA, Asuka [JP/JP]; (JP) (For US Only).
ITOH, Jun-ichi [JP/JP]; (JP) (For US Only)
Inventors: OHMI, Koutoku; (JP).
OHASHI, Tsuyoshi; (JP).
HIGUCHI, Makoto; (JP).
SASAKURA, Asuka; (JP).
ITOH, Jun-ichi; (JP)
Agent: TAKEUCHI, ICHIZAWA & ASSOCIATES; 6F., Akasaka 2-chome Annex, 19-8, Akasaka 2-chome, Minato-ku, Tokyo 1070052 (JP)
Priority Data:
2007-302800 22.11.2007 JP
(JA) 青色蛍光体
Abstract: front page image
(EN)Disclosed is a blue phosphor containing a crystal represented by the following general formula: Ba2(Si1-xAlx)S4:Ce (wherein x satisfies 0 < x < 1) which is obtained by substituting a part of Si site by Al in a blue phosphor represented by the following general formula: Ba2SiS4:Ce. The thus-obtained blue phosphor is further improved in luminous intensity of the emission spectrum by near ultraviolet excitation, thereby being further improved in luminance.
(FR)L'invention porte sur un luminophore bleu contenant un cristal représenté par la formule générale suivante : Ba2(Si1-xAlx) S4:Ce(dans laquelle x satisfait à 0 < x < 1) qui est obtenu par remplacement d'une partie de site de Si par Al dans un luminophore bleu représenté par la formule générale suivante : Ba2SiS4:Ce. Le luminophore bleu ainsi obtenu est encore amélioré en termes d'intensité lumineuse du spectre d'émission par excitation dans le proche ultraviolet, étant ainsi encore amélioré en termes de luminescence.
(JA) 一般式:Ba2SiS4:Ceで示される青色蛍光体におけるSiサイトの一部をAlに置換して、一般式:Ba2(Si1-xAl)S4:Ce(但し、式中のxは0<x<1)で示される結晶を含有する青色蛍光体とすることにより、近紫外領域励起による発光スペクトルの発光強度をより一層高めることができ、輝度をさらに向上させることができる。
Designated States: AE, AG, AL, AM, AO, AT, AU, AZ, BA, BB, BG, BH, BR, BW, BY, BZ, CA, CH, CN, CO, CR, CU, CZ, DE, DK, DM, DO, DZ, EC, EE, EG, ES, FI, GB, GD, GE, GH, GM, GT, HN, HR, HU, ID, IL, IN, IS, JP, KE, KG, KM, KN, KP, KR, KZ, LA, LC, LK, LR, LS, LT, LU, LY, MA, MD, ME, MG, MK, MN, MW, MX, MY, MZ, NA, NG, NI, NO, NZ, OM, PG, PH, PL, PT, RO, RS, RU, SC, SD, SE, SG, SK, SL, SM, ST, SV, SY, TJ, TM, TN, TR, TT, TZ, UA, UG, US, UZ, VC, VN, ZA, ZM, ZW.
African Regional Intellectual Property Organization (BW, GH, GM, KE, LS, MW, MZ, NA, SD, SL, SZ, TZ, UG, ZM, ZW)
Eurasian Patent Organization (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (AT, BE, BG, CH, CY, CZ, DE, DK, EE, ES, FI, FR, GB, GR, HR, HU, IE, IS, IT, LT, LU, LV, MC, MT, NL, NO, PL, PT, RO, SE, SI, SK, TR)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GQ, GW, ML, MR, NE, SN, TD, TG).
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)