EP 1341870 A4 20041229 - METHOD FOR MANUFACTURING SPHERICAL BLUE FLUORESCENT SUBSTANCE
Title (en)
METHOD FOR MANUFACTURING SPHERICAL BLUE FLUORESCENT SUBSTANCE
Title (de)
VERFAHREN ZUR HERSTELLUNG EINER KUGELFÖRMIGEN, BLAU FLUORESZIERENDEN SUBSTANZ
Title (fr)
PROCEDE DESTINE A LA FABRICATION D'UNE SUBSTANCE FLUORESCENTE BLEUE SPHERIQUE
Publication
Application
Priority
KR 0001476 W 20001216
Abstract (en)
[origin: WO02064701A1] The present invention relates to a method for manufacturing spherical and highly crystalline BAM blue phosphor particles, that are close to a single crystal. According to the present invention, the sperical BAM blue particles that are preferable for embodying pictures on a very bright PDP screen can be obtained by mixing raw materials with fluxes to prepare a mixture, transferring the mixture into a closed reactor, and heat-treating the mixture under a reducing atmosphere containing nitrogen and hydrogen.
IPC 1-7
IPC 8 full level
C09K 11/08 (2006.01); C09K 11/64 (2006.01); C09K 11/77 (2006.01)
CPC (source: EP US)
C09K 11/7734 (2013.01 - EP US)
Citation (search report)
- [X] CHEOL-HEE PARK ET.AL.: "Effects on aluminium fluoride on formation of BaMgAl10O17:Eu", ASIA DISPLAY 98, October 1998 (1998-10-01), pages 657 - 660, XP009038992
- [X] S. EKAMBARAM, K.C. PATIL: "Synthesis and properties of Eu2+ activated blue phosphor", JOURNAL OF ALLOYS AND COMPOUNDS, vol. 248, 1997, pages 7 - 12, XP002302997
- [X] B.M.J. SMETS, J.G. VERLIJSDONK: "The luminescence properties od Eu2+ and Mn2+ doped barium hexaaluminates", MAT. RES. BULL., vol. 21, 1986, pages 1305 - 1310, XP002302998
- [A] J.M.P.J. VERSTEGEN, A.L.N. STEVELS: "The relation between crystal structure and luminescence in beta-alumina and magnetoplumbite phases", JOURNAL OF LUMINESCENCE, vol. 9, 1974, pages 406 - 414, XP002303000
- See references of WO 02064701A1
Designated contracting state (EPC)
DE NL
DOCDB simple family (publication)
WO 02064701 A1 20020822; CN 100396755 C 20080625; CN 1434847 A 20030806; EP 1341870 A1 20030910; EP 1341870 A4 20041229; JP 2004518798 A 20040624; JP 3834290 B2 20061018
DOCDB simple family (application)
KR 0001476 W 20001216; CN 00818970 A 20001216; EP 00983566 A 20001216; JP 2002565021 A 20001216