Electroluminescent Device
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United States of America Patent
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Issued Date -
Jul 24, 2008
app pub date -
Aug 2, 2004
filing date -
Aug 1, 2003
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Abandoned
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Abstract
An electroluminescent device comprising:--a first electrode for injection of positive charge carriers;--a second electrode for injection of negative charge carriers; and--an electroluminescent layer located between the first and second electrodes comprising a host material and a metal complex, wherein the host material comprises a polymer having a first repeat unit of formula (I): wherein each Ar is the same or different and independently represents an optionally substituted aryl or heteroaryl and any two Ar groups may be directly linked by a single bond.
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