Organic electroluminescent device

Provided is a practically useful organic EL element having high efficiency and high driving stability while being capable of being driven at a low voltage. The organic EL element has a light-emitting layer and any other organic layer between an anode and a cathode opposite to each other. The light-e...

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Bibliographische Detailangaben
Hauptverfasser:	Tada, Masashi, Terao, Yuhki, Noguchi, Katsuhide, Yuki, Toshinao, Tsuji, Taishi, Takahashi, Yasuhiro, Kai, Takahiro, Nakajima, Yusuke
Format:	Patent
Sprache:	eng
Schlagworte:	ADHESIVES CHEMISTRY DYES ELECTRICITY HETEROCYCLIC COMPOUNDS MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FORELSEWHERE METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC CHEMISTRY PAINTS POLISHES
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Beschreibung
Zusammenfassung:	Provided is a practically useful organic EL element having high efficiency and high driving stability while being capable of being driven at a low voltage. The organic EL element has a light-emitting layer and any other organic layer between an anode and a cathode opposite to each other. The light-emitting layer contains at least two host materials and at least one light-emitting dopant. At least one of the host materials is a host material selected from compounds each having one or two indolocarbazole skeletons, and at least one of the other host materials is a host material selected from carbazole compounds each substituted with a dibenzofuran or a dibenzothiophene.