PHOSPHOR, PHOSPHOR PASTE AND LIGHT-EMITTING DEVICE

Title:

PHOSPHOR, PHOSPHOR PASTE AND LIGHT-EMITTING DEVICE

Document Type and Number:

WIPO Patent Application WO/2006/109759

Kind Code:

A1

Abstract:

Disclosed are a phosphor, a phosphor paste and a light-emitting device. The phosphor contains a compound represented by the following formula (1). M¹_3(1-x)Eu_3xM²_mM³_nO_3+m+2n (1) M¹ represents at least one element selected from the group consisting of Ba, Sr and Ca; M² represents at least one element selected from the group consisting of Mg and Zn; M³ represents at least one element selected from the group consisting of Si and Ge; and m, n and x respectively satisfy the following formulae: 0.9 ≤ m ≤ 1.1, 1.8 ≤ n ≤ 2.2 and 0.00016 ≤ x < 0.003. The phosphor paste contains such a phosphor, an arbitrary organic binder and a solvent. The light-emitting device comprises such a phosphor and an arbitrary excitation source for the phosphor.

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Inventors:

KUZE SATORU (JP)
EZUHARA TAKAYOSHI (JP)
IMANARI YUICHIRO (JP)
MIYAZAKI SUSUMU (JP)

Application Number:

PCT/JP2006/307523

Publication Date:

October 19, 2006

Filing Date:

April 04, 2006

Export Citation:

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Assignee:

SUMITOMO CHEMICAL CO (JP)
KUZE SATORU (JP)
EZUHARA TAKAYOSHI (JP)
IMANARI YUICHIRO (JP)
MIYAZAKI SUSUMU (JP)

International Classes:

C09K11/59; C09K11/66; H01J11/22; H01J11/34; H01J11/42; H01J29/20; H01J61/44; H01L33/48; H01L33/50; H01L33/56

Domestic Patent References:

WO2003069686A1

2003-08-21

Foreign References:

JP2003132803A

2003-05-09

Other References:

LIN Y. ET AL.: "Luminescence of Eu2+ and Dy3+ activated R3MgSi208-based (R=Ca, Sr, Ba) phosphors", JOURNAL OF ALLOYS AND COMPOUNDS, vol. 348, no. 1-2, 2003, pages 76 - 79, XP004396793
See also references of EP 1892279A4

Attorney, Agent or Firm:

Enomoto, Masayuki c/o Sumitomo Chemical Intellectual Property Service (Limited 5-33, Kitahama 4-chome, Chuo-k, Osaka-shi Osaka 50, JP)

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