发明授权
- 专利标题： Light emitting device having dopants in a light emitting layer
- 专利标题（中）： 在发光层中具有掺杂剂的发光器件
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申请号： US12147213申请日： 2008-06-26
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公开(公告)号： US07910227B2公开(公告)日： 2011-03-22
- 发明人: Manabu Furugori , Shinjiro Okada , Akira Tsuboyama , Takao Takiguchi , Seishi Miura , Takashi Moriyama , Satoshi Igawa , Jun Kamatani , Hironobu Iwawaki
- 申请人： Manabu Furugori , Shinjiro Okada , Akira Tsuboyama , Takao Takiguchi , Seishi Miura , Takashi Moriyama , Satoshi Igawa , Jun Kamatani , Hironobu Iwawaki
- 申请人地址： JP Tokyo
- 专利权人： Canon Kabushiki Kaisha
- 当前专利权人： Canon Kabushiki Kaisha
- 当前专利权人地址： JP Tokyo
- 代理机构： Fitzpatrick, Cella, Harper & Scinto
- 优先权： JP2001-181416 20010615; JP2002-143441 20020517; JP2002-143442 20020517; JP2002-143443 20020517
- 主分类号： H01L51/54
- IPC分类号： H01L51/54
摘要：
A light emitting device having an anode and a cathode provided on a substrate, and an organic light emitting layer between the anode and the cathode, where the organic light emitting layer includes a light emitting material and first and second dopants for improving the dispersability thereof. As the first dopant, there is employed a phosphorescent dopant. The amount of the second dopant is greater than the amount of the first dopant.