- 专利标题: ORGANIC ELECTROLUMINESCENT DEVICE
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申请号: US17809786申请日: 2022-06-29
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公开(公告)号: US20220344598A1公开(公告)日: 2022-10-27
- 发明人: Hajime NAKANOTANI , Chihaya ADACHI , Takahiro HIGUCHI , Taro FURUKAWA
- 申请人: KYULUX, INC.
- 申请人地址: JP FUKUOKA-SHI
- 专利权人: KYULUX, INC.
- 当前专利权人: KYULUX, INC.
- 当前专利权人地址: JP FUKUOKA-SHI
- 优先权: JP2013-168587 20130814,JP2014-038472 20140228
- 主分类号: H01L51/00
- IPC分类号: H01L51/00 ; H01L51/50 ; C09K11/06
摘要:
An organic electroluminescent device having an anode, a cathode, and a light emitting layer between the anode and the cathode, in which the light emitting layer contains a first organic compound, a second organic compound, and a third organic compound that satisfy the following expression (A), the second organic compound is a delayed fluorescent material, and the third organic compound is a light emitting material, is capable of enhancing the light emission efficiency. ES1(A), ES1(B) and ES1(C) represent a lowest, singlet excitation energy level of the first, second and third organic compound, respectively. ES1(A)>ES1(B)>ES1(C) (A)
公开/授权文献
- US11944010B2 Organic electroluminescent device 公开/授权日:2024-03-26
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