Electron transporting compounds and organic electroluminescent devices using the same
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United States of America Patent
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Oct 6, 2015
Grant Date -
Jun 12, 2014
app pub date -
Dec 6, 2013
filing date -
Dec 7, 2012
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Abstract
The present invention discloses a novel compound of Formula 1, and an organic electroluminescent device using the same. In Formula 1, X and Y independently represents an aromatic or a hetero aromatic hydrocarbon having a carbon number of from 5 to 10. Ar1 to Ar7 each independently represents an unsubstituted or substituted aromatic hydrocarbon having a carbon number of from 4 to C12, or an unsubstituted or substituted condensed polycyclic aromatic hydrocarbon having a carbon number of from 4 to 12; Ar1 to Ar7 can form an annulated or fused aromatic ring system with the adjacent aromatic hydrocarbons. When the compound of Formula I is used in the device, high luminous efficiency, longer lifetime and low driving voltage can be achieved.
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