Global Patent Index - EP 1876213 B9

EP 1876213 B9 20110209 - FLUORESCENT SUBSTANCE AND LIGHT EMITTING DEVICE

Title (en)

FLUORESCENT SUBSTANCE AND LIGHT EMITTING DEVICE

Title (de)

FLUORESZIERENDER STOFF UND LICHTEMITTIERENDE VORRICHTUNG

Title (fr)

SUBSTANCE FLUORESCENTE ET DISPOSITIF ELECTROLUMINESCENT

Publication

EP 1876213 B9 20110209 (EN)

Application

EP 06731894 A 20060414

Priority

  • JP 2006307958 W 20060414
  • JP 2005117896 A 20050415

Abstract (en)

[origin: EP1876213A1] The present invention provides a phosphor that has high luminance, a property of low luminance degradation during PDP driving, and chromaticity y comparable to that of BAM:Eu. The present invention is the phosphor that is represented by the general formula xAO·y 1 EuO·y 2 EuO 3/2 ·DO·zSiO 2 wherein A is at least one selected from Ca, Sr and Ba, D is at least one selected from Mg and Zn, and 2.970‰x‰3.500, 0.001‰y 1 +y 2 ‰0.030, and 1.900‰z‰2.100 are satisfied, and that has 50 mol % or less of the divalent Eu ratio (ratio of the divalent Eu element to the total of the Eu elements) in the vicinity of the surface of the phosphor particle.

IPC 8 full level

C09K 11/59 (2006.01); C09K 11/77 (2006.01); C09K 11/79 (2006.01); H01J 11/02 (2006.01)

CPC (source: EP KR US)

C09K 11/08 (2013.01 - KR); C09K 11/55 (2013.01 - KR); C09K 11/595 (2013.01 - EP US); C09K 11/77342 (2021.01 - EP KR US); C09K 11/778 (2013.01 - EP US); C09K 11/7787 (2013.01 - EP US); C09K 11/7797 (2013.01 - EP US); H01J 11/42 (2013.01 - KR); H01J 2211/42 (2013.01 - EP US)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 1876213 A1 20080109; EP 1876213 A4 20090304; EP 1876213 B1 20100714; EP 1876213 B9 20110209; CN 101160372 A 20080409; CN 101160372 B 20101201; DE 602006015452 D1 20100826; JP 5064220 B2 20121031; JP WO2006112405 A1 20081211; KR 101233856 B1 20130215; KR 20070120585 A 20071224; US 2009072704 A1 20090319; WO 2006112405 A1 20061026

DOCDB simple family (application)

EP 06731894 A 20060414; CN 200680012503 A 20060414; DE 602006015452 T 20060414; JP 2006307958 W 20060414; JP 2007528124 A 20060414; KR 20077025934 A 20060414; US 91140206 A 20060414