Long life, white light emitting electroluminescent phosphor

Details Long life, white light emitting electroluminescent phosphor Long life, white light emitting electroluminescent phosphor

C - Chemistry, Metallurgy

09

K

C09K 11/58 (2006.01) H05B 33/14 (2006.01)

Patent

CA 2424016

A long-life, white-emitting phosphor blend is provided which comprises about 75 wt. % of a first electroluminescent phosphor having an x color coordinate of about 0.530 and a y color coordinate of about 0.455; about 10 wt. % of a second electroluminescent phosphor having an x color coordinate of about 0.185 and a y color coordinate of about 0.440, said second electroluminescent phosphor containing about 600 ppm copper; and about 15 wt. % of a third electroluminescent phosphor having an x color coordinate of about 0.160 and a y color coordinate of about 0.175, said third electroluminescent phosphor containing about 300 ppm copper.

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