Luminescence crystal particle, luminescence crystal particle composition, display panel and flat-panel display
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United States of America Patent
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Nov 16, 2004
Grant Date -
Sep 27, 2001
app pub date -
Feb 22, 2001
filing date -
Feb 25, 2000
priority date (Note) -
Expired
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Abstract
A luminescence crystal particle which emits light upon irradiation with an energy beam and which has a crystal defect density of 5.times.10.sup.7 defects/cm.sup.2 or less in a region located from the surface of the luminescence crystal particle to a portion as deep as the energy beam reaches.
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