Organic electroluminescent devices
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United States of America Patent
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Nov 23, 1999
Grant Date -
N/A
app pub date -
Feb 27, 1997
filing date -
Feb 27, 1997
priority date (Note) -
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Abstract
An organic electroluminescent (EL) device comprised, in the following sequence, of an anode, an organic hole injecting and hole transporting layer, an organic electron injecting and electron transporting layer, and a cathode, wherein said organic hole injecting and transporting layer is comprised of a mixture of a tertiary aromatic amine and a polycyclic aromatic hydrocarbon compound.
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