Phosphor thin film, preparation method, and EL panel
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United States of America Patent
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Mar 2, 2004
Grant Date -
Mar 14, 2002
app pub date -
May 30, 2001
filing date -
Sep 21, 2000
priority date (Note) -
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Abstract
The invention aims to provide a phosphor thin film eliminating a need for filters, having a satisfactory color purity and useful as the blue color in full-color EL displays, a method for preparing the same and an EL panel. Such objects are achieved by a phosphor thin film formed of a matrix material comprising barium thioaluminate as a main component to which magnesium is added and rare earth element, Eu is added as a luminescent center, a method for preparing the same, and an EL panel using the same.
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