发明授权
- 专利标题： Phosphorescence compound and electro field light emitting device having the same
- 专利标题（中）： 磷光化合物和电场发光器件具有相同的特性
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申请号： US10719808申请日： 2003-11-21
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公开(公告)号： US07078114B2公开(公告)日： 2006-07-18
- 发明人: Satoshi Seo , Hideko Inoue , Atsushi Tokuda , Ryoji Nomura
- 申请人： Satoshi Seo , Hideko Inoue , Atsushi Tokuda , Ryoji Nomura
- 申请人地址： JP
- 专利权人： Semiconductor Energy Laboratory Co., Ltd.
- 当前专利权人： Semiconductor Energy Laboratory Co., Ltd.
- 当前专利权人地址： JP
- 代理机构： Cook, Alex, McFarron, Manzo, Cummings & Mehler, Ltd.
- 优先权： JP2002-342647 20021126
- 主分类号： C09K11/06
- IPC分类号： C09K11/06 ; H05B33/14
摘要：
A phosphorescent compound is formed by synthesizing an orthometallated complex by using easily-synthesized ligands. An electroluminescent device having high luminous efficiency uses the phosphorescent compound. Moreover, a light-emitting device operating at a low voltage uses the electroluminescent device. A phosphorescent compound represented by general formula [formula 1] is synthesized. Further, an electroluminescent device containing the phosphorescent compound is formed. In order to generate phosphorescent emission more efficiently, a heavy metal is preferably used as a central metal from the perspective of heavy atom effects. Therefore, one feature of the present invention is that the central metal M in the below general formula [formula 1] is iridium or platinum
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