Red fluorescent composition for color cathode-ray tube
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United States of America Patent
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Jun 30, 1998
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app pub date -
Jun 24, 1997
filing date -
Feb 20, 1995
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Abstract
An europium activated yttrium oxysulfide fluorescencer composition for color cathode-ray tube is disclosed, wherein a first red fluorescencer with predetermined particle size and a second red fluorescencer with smaller particle size are mixed and said first fluorescencer and second fluorescencer comprises respectively 0.07-0.08 g atomic weight of europium as an activator relative to 1 mole of yttrium oxysulfide as a mother body.
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