Electroluminescent phosphor with high brightness
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United States of America Patent
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Apr 10, 2001
Grant Date -
N/A
app pub date -
Jun 7, 1999
filing date -
Jun 7, 1999
priority date (Note) -
Expired
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Abstract
A method of increasing the brightness of an electroluminescent phosphor comprises the steps of forming the phosphor as a base phosphor to have a given brightness; and annealing the base phosphor at a temperature and for a time sufficient to increase the given brightness of the base phosphor and form an annealed phosphor. Brightness can be increased from 8% to about 33% when measure against a control made by the same process but not annealed.
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