发明公开
- 专利标题: LIGHT-EMITTING ELEMENT
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申请号: EP16853486.5申请日: 2016-09-30
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公开(公告)号: EP3361521A1公开(公告)日: 2018-08-15
- 发明人: SASADA, Toshiaki , ANRYU, Makoto , AKINO, Nobuhiko , SAITO, Takakazu
- 申请人: Sumitomo Chemical Company, Limited
- 申请人地址: 27-1, Shinkawa 2-chome Chuo-ku Tokyo 104-8260 JP
- 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: 27-1, Shinkawa 2-chome Chuo-ku Tokyo 104-8260 JP
- 代理机构: J A Kemp
- 优先权: JP2015198252 20151006
- 国际公布: WO2017061332 20170413
- 主分类号: H01L51/50
- IPC分类号: H01L51/50 ; C07F15/00 ; C08F2/44 ; C08F12/26 ; C09K11/06 ; H05B33/12
摘要:
Provided is a light emitting device excellent in luminance life.
A light emitting device comprising an anode, a cathode, a first organic layer disposed between the anode and the cathode and comprising a phosphorescent material, and a second organic layer disposed between the anode and the cathode and comprising a crosslinked body of a crosslinkable material and a phosphorescent material,
wherein the phosphorescent material contained in the first organic layer and the phosphorescent material contained in the second organic layer comprise the same phosphorescent compound represented by the formula (1), and the crosslinkable material is a compound represented by the formula (3):
wherein M represents an iridium atom or the like, n 1 represents an integer of 1 or more, n 2 represents an integer of 0 or more, E 1 and E 2 represent a carbon atom or the like, the ring L 1 and the ring L 2 represent an aromatic heterocyclic ring or the like, and A 1 -G 1 -A 2 represents an anionic bidentate ligand:
wherein m B1 to m B3 represent an integer of 0 or more, Ar 7 represents an aromatic hydrocarbon group or the like, L B1 represents a divalent group or the like, and X" represents a crosslinkable group or the like.
A light emitting device comprising an anode, a cathode, a first organic layer disposed between the anode and the cathode and comprising a phosphorescent material, and a second organic layer disposed between the anode and the cathode and comprising a crosslinked body of a crosslinkable material and a phosphorescent material,
wherein the phosphorescent material contained in the first organic layer and the phosphorescent material contained in the second organic layer comprise the same phosphorescent compound represented by the formula (1), and the crosslinkable material is a compound represented by the formula (3):
wherein M represents an iridium atom or the like, n 1 represents an integer of 1 or more, n 2 represents an integer of 0 or more, E 1 and E 2 represent a carbon atom or the like, the ring L 1 and the ring L 2 represent an aromatic heterocyclic ring or the like, and A 1 -G 1 -A 2 represents an anionic bidentate ligand:
wherein m B1 to m B3 represent an integer of 0 or more, Ar 7 represents an aromatic hydrocarbon group or the like, L B1 represents a divalent group or the like, and X" represents a crosslinkable group or the like.
公开/授权文献
- EP3361521B1 LIGHT-EMITTING ELEMENT 公开/授权日:2021-03-10
信息查询
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