发明名称 |
LIGHT EMITTING ELEMENT AND LIGHT EMITTING DEVICE |
摘要 |
<p>It is an object of the present invention to obtain an organometallic complex that is capable of converting an excited triplet state into luminescence, a light-emitting element that can be driven for a long time, is high in luminous efficiency, and has a favorable long lifetime, and a light-emitting device using the light-emitting element. The present invention provides a light-emitting element that has a pair of electrodes (an anode and a cathode) and a light-emitting layer between a pair of electrodes, where the light-emitting layer includes an organometallic complex represented by the following general formula (5) and one of a compound that has a larger energy gap than the organometallic complex and a compound that has a larger ionization potential and a smaller electron affinity than the organometallic complex, and provides a light-emitting device using the light-emitting device.</p> |
申请公布号 |
EP1749424(A1) |
申请公布日期 |
2007.02.07 |
申请号 |
EP20050740951 |
申请日期 |
2005.05.17 |
申请人 |
SEMICONDUCTOR ENERGY LABORATORY CO., LTD. |
发明人 |
OHSAWA, NOBUHARU;ABE, HIROKO;INOUE, HIDEKO;SHITAGAKI, SATOKO;SEO, SATOSHI |
分类号 |
H05B33/14;C09K11/06;H01L51/00;H01L51/50;H01L51/52 |
主分类号 |
H05B33/14 |
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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