- 专利标题: Light emitting device
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申请号: US15759890申请日: 2016-09-30
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公开(公告)号: US11005044B2公开(公告)日: 2021-05-11
- 发明人: Toshiaki Sasada , Makoto Anryu , Nobuhiko Akino , Takakazu Saito
- 申请人: Sumitomo Chemical Company, Limited
- 申请人地址: JP Tokyo
- 专利权人: Sumitomo Chemical Company, Limited
- 当前专利权人: Sumitomo Chemical Company, Limited
- 当前专利权人地址: JP Tokyo
- 代理机构: Panitch Schwarze Belisario & Nadel LLP
- 优先权: JPJP2015-198252 20151006
- 国际申请: PCT/JP2016/079042 WO 20160930
- 国际公布: WO2017/061332 WO 20170413
- 主分类号: H01L51/00
- IPC分类号: H01L51/00 ; C09K11/06 ; C08F2/44 ; C07F15/00 ; H01L51/50 ; C08F12/26 ; C08G61/12 ; C09K11/02
摘要:
A light emitting device is provided which contains an anode, a cathode, and two organic layers disposed between the anode and the cathode. The first organic layer contains a phosphorescent material and the second organic layer contains a crosslinked body of a crosslinkable material and a phosphorescent material. The two phosphorescent materials contain the same phosphorescent compound represented by formula (1), and the crosslinkable material is a compound represented by formula (3): In formula (1), M represents a metal atom, n1 is ≥1, n2 is ≥0, E1 and E2 represent a carbon atom, L1 and L2 represent an aromatic heterocyclic ring, and A1-G1-A2 represents an anionic bidentate ligand. In formula (3), mB1 to mB3 represent an integer of ≥0, Ar7 may represent an aromatic hydrocarbon group, LB1 may represent a divalent group, and X″ may represent a crosslinkable group.
公开/授权文献
- US20180240978A1 LIGHT EMITTING DEVICE 公开/授权日:2018-08-23
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