ORGANIC ELECTROLUMINESCENCE MATERIAL AND ELEMENT USING THE SAME
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United States of America Patent
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Issued Date -
Jun 25, 2009
app pub date -
Dec 22, 2008
filing date -
Dec 25, 2007
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Abstract
An organic EL element having one or a plurality of organic layers including a light emitting layer between a pair of electrodes is arranged such that at least one layer of the above-mentioned organic layers contains a compound as expressed by the following general formula (1) independently or as a mixture.are selected from the group consisting of a phenyl group which is either substituted or unsubstituted and a 5 or 6 member heterocyclic ring group which is either substituted or unsubstituted, and they may be the same groups or the groups different from one another.)
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