发明授权
- 专利标题: Organic electroluminescent element
- 专利标题(中): 有机电致发光元件
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申请号: US13257776申请日: 2010-04-14
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公开(公告)号: US08980443B2公开(公告)日: 2015-03-17
- 发明人: Kazutoshi Murota , Toshihiko Iwasaki
- 申请人: Kazutoshi Murota , Toshihiko Iwasaki
- 申请人地址: JP Tokyo
- 专利权人: Konica Minolta Holdings, Inc.
- 当前专利权人: Konica Minolta Holdings, Inc.
- 当前专利权人地址: JP Tokyo
- 代理机构: Holtz, Holtz, Goodman & Chick PC
- 优先权: JP2009-097972 20090414
- 国际申请: PCT/JP2010/056672 WO 20100414
- 国际公布: WO2010/119891 WO 20101021
- 主分类号: H01L51/50
- IPC分类号: H01L51/50 ; H01L51/00 ; C08G61/12
摘要:
Disclosed is an organic electroluminescent element which can be produced by a wet process, has improved laminated structure, and also has improved external quantum efficiency and an improved service life. The organic electroluminescent element comprises at least an anode; a cathode and a laminated structure intercalated between the anode and the cathode, all of which are arranged on a substrate, wherein the laminated structure has at least four layers formed by a wet process, and wherein the layers produced by the wet process include at least a hole injection layer, a hole transport layer and a light-emitting layer. The organic electroluminescent element is characterized in that the hole injection layer comprises an electrically conductive polymer, the hole transport layer comprises a polymeric compound having a repeating unit represented by general formula (1), and the polymeric compound has a weight average molecular weight of 50,000 to 200,000 in terms of polystyrene content.
公开/授权文献
- US20120007072A1 ORGANIC ELECTROLUMINESCENT ELEMENT 公开/授权日:2012-01-12
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