Organic electroluminescent element
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United States of America Patent
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Nov 30, 2010
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N/A
app pub date -
Jul 5, 2007
filing date -
Mar 31, 2005
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Abstract
Disclosed is an organic electroluminescent element, comprising an anode and a cathode, an organic light-emitting layer interposed between the anode and the cathode, and an organic hole transfer layer containing a polymer type organic hole transfer material having a metal oxide of a semiconductor material or a conductive material added thereto.
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