Blue phosphor for fluorescent display and method for synthesizing the same
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United States of America Patent
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Mar 15, 2005
Grant Date -
Jul 3, 2003
app pub date -
Dec 24, 2002
filing date -
Dec 26, 2001
priority date (Note) -
Expired
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Abstract
Provided are a blue phosphor for a fluorescent display having a high luminous efficiency, and a method for synthesizing the same. The blue phosphor is obtained from a host composed of strontium carbonate (SrCO.sub.3) and an activator composed of a cerium compound. The method for synthesizing the blue phosphor includes preparing a mixture having strontium carbonate (SrCO.sub.3) and a cerium oxide (CeO.sub.2) homogenously mixed according to the composition having the following general formula: SrCO.sub.3 +xCeO.sub.2 wherein 0.01.ltoreq.x.ltoreq.0.5, and annealing the mixture at 800 to 900.degree. C.
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