发明授权
- 专利标题： OLED with high efficiency blue light-emitting layer
- 专利标题（中）： OLED具有高效蓝光发光层
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申请号： US12640100申请日： 2009-12-17
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公开(公告)号： US08242489B2公开(公告)日： 2012-08-14
- 发明人: Marina E. Kondakova , Ralph H. Young
- 申请人： Marina E. Kondakova , Ralph H. Young
- 申请人地址： KR Seoul
- 专利权人： Global OLED Technology, LLC.
- 当前专利权人： Global OLED Technology, LLC.
- 当前专利权人地址： KR Seoul
- 代理机构： McKenna, Long, and Aldridge, L.L.P.
- 主分类号： H01L29/08
- IPC分类号： H01L29/08
摘要：
The invention provides an OLED device comprising an anode, a cathode and a light-emitting layer located therebetween, said light-emitting layer comprising an anthracene host and a styrylamine blue light-emitting compound; and, located between the said light-emitting layer and the cathode, a first electron-transporting layer that is greater than 0.5 nm and less than 5 nm thick; and a second electron-transporting layer consisting essentially of an anthracene located between the first electron-transporting layer and the cathode. The first electron-transporting layer includes a compound with a less negative LUMO level than the anthracene in the second electron-transporting layer. Devices of the invention provide improvement in features such as efficiency.
公开/授权文献
- US20110147716A1 OLED WITH HIGH EFFICIENCY BLUE LIGHT-EMITTING LAYER 公开/授权日：2011-06-23