发明名称 |
Organic electroluminescence element |
摘要 |
<p>The present invention provides an organic EL element having a multi-photon structure, in which optical absorption in the visible region caused by a charge-transfer complex in a conventional intermediate layer structure is inhibited, and the resistance of this intermediate layer to a counter career is improved, thus allowing high efficiency and a long operation life of the element. The element is arranged to be formed on a substrate 1 and have a multi-photon structure in which a plurality of light emitting units 4 including at least one light emitting layer are stacked via an intermediate layer 5 between an anode layer 2 and a cathode layer 3 which is a counter electrode, the above-mentioned intermediate layer 5 is formed by mixing or stacking an electron accepting material or an electron donating material and an organic compound, so as to avoid formation of a charge-transfer complex.</p> |
申请公布号 |
EP2284921(A2) |
申请公布日期 |
2011.02.16 |
申请号 |
EP20090014749 |
申请日期 |
2009.11.26 |
申请人 |
YAMAGATA PROMOTIONAL ORGANIZATION FOR INDUSTRIAL TECHNOLOGY |
发明人 |
ODA, ATSUSHI;TANAKA, JUNICHI;KAWAI, TAKASHI |
分类号 |
H01L51/50;H01L51/52 |
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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