- 专利标题: Material for forming organic light-emitting layer, coating liquid for forming organic light-emitting element, organic light-emitting element and light source device, and method for manufacturing same
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申请号: US14131852申请日: 2012-07-11
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公开(公告)号: US09954193B2公开(公告)日: 2018-04-24
- 发明人: Sukekazu Aratani , Hirotaka Sakuma , Shingo Ishihara , Naoya Tokoo , Hiroshi Sasaki
- 申请人: Sukekazu Aratani , Hirotaka Sakuma , Shingo Ishihara , Naoya Tokoo , Hiroshi Sasaki
- 申请人地址: JP Tokyo
- 专利权人: HITACHI, LTD.
- 当前专利权人: HITACHI, LTD.
- 当前专利权人地址: JP Tokyo
- 代理机构: Foley & Lardner LLP
- 优先权: JP2011-153423 20110712; JP2011-157408 20110719; JP2011-157415 20110719
- 国际申请: PCT/JP2012/067660 WO 20120711
- 国际公布: WO2013/008835 WO 20130117
- 主分类号: H01L51/50
- IPC分类号: H01L51/50 ; H01L51/00 ; H05B33/10 ; H05B33/14 ; H01L51/56 ; H01L51/52 ; H01L27/32
摘要:
In an organic light-emitting element including a first electrode, a second electrode, and a light-emitting layer placed between the first electrode and the second electrode, the light-emitting layer includes a host material, a first emitter, and a second emitter, the emission peak wavelength of the first emitter is longer than the emission peak wavelength of the second emitter, and an aromatic heterocyclic ligand or an auxiliary ligand of the first emitter include an electron withdrawing group. Accordingly, an organic light-emitting element can be provided in which the HOMO value of a specific luminescent dopant is closer to the HOMO value of another luminescent dopant.
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