Oblon, McClelland, Maier & Neustadt, L.L.P.
Organic electroluminescent device
Provided are an amine compound having a benzofluorene structure and further having a dibenzofuran structure and/or a dibenzothiophene structure, and an organic electroluminescent device containing a cathode, an anode and an organic thin film layer intervening between the cathode and anode, the organic thin film layer comprising one layer or plural layers comprising at least an emitting layer, at least one layer of the organic thin film layer comprising the aforementioned amine compound solely or as a component of a mixture.
IDEMITSU KOSAN CO., LTD.
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Takeshi Hirokatsu
Ikeda Ito