Coated electroluminescent phosphor

Details Coated electroluminescent phosphor Coated electroluminescent phosphor

1991-10-21

1993-09-14

Lesmes, George F.

Stock material or miscellaneous articles

Composite

Of inorganic material

428917, 428403, 2523016R, 2504831, 2504842, 313503, 313506, H05B 3300

Patent

active

052447502

ABSTRACT:
A coated electroluminescent phosphor which can be copper activated zinc sulfide, copper and manganese activated zinc sulfide or copper activated zinc sulfide-selenide is disclosed having a particle size of from less than about 5 micrometers in diameter to about 80 micrometers in diameter. The coating is from about 100 to about 400 angstroms in thickness, and consists essentially of aluminum oxide and is resistant to moisture and relatively chemically inert.

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