发明授权
- 专利标题： Organic light-emitting device
- 专利标题（中）： 有机发光装置
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申请号： US12632679申请日： 2009-12-07
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公开(公告)号： US08455113B2公开(公告)日： 2013-06-04
- 发明人: Naoki Yamada , Jun Kamatani , Tomona Yamaguchi , Akihito Saitoh
- 申请人： Naoki Yamada , Jun Kamatani , Tomona Yamaguchi , Akihito Saitoh
- 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： Canon U.S.A., Inc., IP Division
- 优先权： JP2008-314613 20081210; JP2009-209539 20090910
- 主分类号： H01L51/54
- IPC分类号： H01L51/54
摘要：
A light-emitting layer emits light having an emission spectrum having a primary peak in the range of wavelengths of 430 to 480 nm. The light-emitting layer contains a host compound and a dopant compound. The dopant compound has an electron affinity of 2.93 eV or more higher that is than the host compound. The dopant compound in the lowest excited triplet state has an energy of 1.95 eV or less that is lower than the host compound in the lowest excited triplet state. The dopant compound has a smaller band gap than the host compound. The dopant compound is a hydrocarbon compound.
公开/授权文献
- US20100140604A1 ORGANIC LIGHT-EMITTING DEVICE 公开/授权日：2010-06-10