Method of manufacturing a phosphor for use in an electroluminesc

Details Method of manufacturing a phosphor for use in an electroluminesc Method of manufacturing a phosphor for use in an electroluminesc

1996-03-18

1997-06-03

Bonner, Melissa

Compositions

Inorganic luminescent compositions

Zinc or cadmium containing

2523016R, C09K 1154, C09K 1156

Patent

active

056351119

ABSTRACT:
A phosphor for use in an electroluminescent panel is produced by firing a material primarily composed of powder of zinc sulfide, preferably with high-frequency induction heating, under a predetermined pressure in an atmosphere of a halogen gas as a coactivator. The phosphor thus produced is of good emission characteristics having minimum particle size and impurity concentration irregularities.

REFERENCES:
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patent: 3957678 (1976-05-01), Dikhoff et al.
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patent: 4374037 (1983-02-01), Takahashi
patent: 4650539 (1987-03-01), Irvine et al.
patent: 4874985 (1989-10-01), Hase et al.
patent: 5217695 (1993-06-01), Augustine et al.

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