Stock material or miscellaneous articles – Web or sheet containing structurally defined element or... – Including a second component containing structurally defined...
Patent
1997-10-05
2000-01-04
Le, Hoa T.
Stock material or miscellaneous articles
Web or sheet containing structurally defined element or...
Including a second component containing structurally defined...
427219, 428330, 428331, 428404, B32B 516
Patent
active
060107790
ABSTRACT:
A display screen having a phosphor coating comprising a phosphor composition of a phosphor provided with a coating which comprises one or more oxgyen compounds of the elements zinc, aluminium, magnesium, calcium and barium as well as colloidal SiO.sub. particles, said colloidal SiO.sub.2 particles being composed of SiO.sub.2 particles having an average size of 4 nm.ltoreq.d.ltoreq.30 nm, corresponding to a specific surface of 100 m.sup.2 /g.ltoreq.A.sub.s .ltoreq.550 nm m.sup.2 /g, and SiO.sub.2 particles having an average size of 50 nm.ltoreq.d.ltoreq.150 nm, corresponding to a specific surface of 25 m.sup.2 /g.ltoreq.A.sub.s .ltoreq.70 m.sup.2 /g.
REFERENCES:
patent: 4473634 (1984-09-01), Dodds et al.
patent: 4544605 (1985-10-01), Miyazaki et al.
patent: 5593782 (1997-01-01), Budd
Boutelje Miguel
de Bakker Jan W. G.
Jungk Hans-Otto
Merikhi Jacqueline
Opitz Joachim
Le Hoa T.
Spain Norman N.
U.S. Philips Corporation
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