发明名称 |
ORGANIC ELECTROLUMINESCENT DEVICE |
摘要 |
<p>Disclosed is an organic electroluminescent device (organic EL device) which can achieve high efficiency and long lifetime even when driven at low voltage. The organic El device comprises at least a light-emitting layer and an electron-transporting layer between an anode and a cathode facing each other. The electron-transporting layer consists of two layers, namely, a first electron-transporting layer and a second electron-transporting layer and the first electron-transporting layer and the second electron-transporting layer are arranged sequentially in this order from the light-emitting layer side to the cathode side. The first electron-transporting layer contains an indole derivative in which the ring nitrogen atom is substituted with an aromatic group and an aromatic ring is fused to the indole ring.</p> |
申请公布号 |
EP2256842(A1) |
申请公布日期 |
2010.12.01 |
申请号 |
EP20090721926 |
申请日期 |
2009.02.27 |
申请人 |
NIPPON STEEL CHEMICAL CO., LTD. |
发明人 |
FUKUMATSU, TAKAYUKI;YAMAMOTO, TOSHIHIRO;NOGUCHI, KATSUHIDE;ICHIHASHI, IKUMI |
分类号 |
H01L51/50;C07D471/04;C07D487/04;H01L51/00 |
主分类号 |
H01L51/50 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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