ELECTRON TRANSPORTING COMPOUNDS AND ORGANIC ELECTROLUMINESCENT DEVICES USING THE SAME
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United States of America Patent
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Issued Date -
Sep 25, 2014
app pub date -
Mar 21, 2014
filing date -
Mar 22, 2013
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Abandoned
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Abstract
Disclosed is a novel compound of Formula 1 and an organic electroluminescent device using the same. In Formula 1, X and Y independently represents a hydrogen, an aromatic or a hetero aromatic hydrocarbon having C5 to C10 carbons; X and Y may be the same or different; Ar1 to Ar2 each represent a hydrogen, an unsubstituted or substituted aromatic hydrocarbon having C4 to C12 carbons, or an unsubstituted or substituted condensed polycyclic aromatic hydrocarbon having C4 to C12 carbons; Ar1 to Ar2 can form a fused aromatic ring system with the adjacent aromatic hydrocarbons. The compound of Formula 1 is present in the electron injection or a transport material, or an exciton blocking layer in the organic light emitting device, and thereby improving the device stability, lowering the operational voltage.
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