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ORGANIC ELECTROLUMINESCENT ELEMENT 发明申请

2022-12-24 3991 577K 0

专利信息

申请日期 2024-12-05 申请号 KR1020127004252
公开(公告)号 KR1020120043001A 公开(公告)日 2012-05-03
公开国别 KR 申请人省市代码 全国
申请人 KANEKA CORP
简介 Provided is a high-luminance, long-life laminated organic electroluminescent element. The organic electroluminescent element has a composition in which a plurality of light-emitting units (3) including at least one organic light-emitting layer are laminated between a positive electrode (2) and a negative electrode (5), and in which a linking layer (4) is held between the respective light-emitting units. The linking layer is formed by laminating, in succession from the positive electrode side, an electron generating/transport section (4-1-a), an intermediate layer (4-1-b), and a hole generating/transport section (4-1-c), which contain at least one metal selected from a group consisting of an alkali mental, alkaline earth metal, rare earth metal, alloy of these metals, and compound of these metals. Preferably the intermediate layer (4-1-b) contains an electrical insulating non-semiconductive substance having a specific resistance which is between 1.0 x 10 2 ©·cm and 1.0 x 10 9 ©·cm.


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