COMPOUND FOR ORGANIC ELECTROLUMINESCENT ELEMENTS, AND ORGANIC ELECTROLUMINESCENT ELEMENT
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United States of America Patent
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Issued Date -
Aug 6, 2015
app pub date -
Sep 25, 2013
filing date -
Sep 28, 2012
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Abstract
Provided are an organic EL device practically satisfactory in terms of its light-emitting characteristics, driving voltage, and durability, and a compound for an organic EL device to be used in the device. The organic EL device has a structure in which an anode, a plurality of organic layers including a light-emitting layer, and a cathode are laminated on a substrate, and the organic EL device contains an indolocarbazole compound in at least one organic layer selected from the light-emitting layer, a hole-transporting layer, an electron-transporting layer, a hole-blocking layer, and an electron-blocking layer. The indolocarbazole compound is a compound having, in a molecule thereof, at least one boron-containing group having such a structure that boron of the boron-containing group is bonded to an atom on a linking group bonded to a nitrogen atom of an indolocarbazole ring or to a carbon atom of the ring.
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