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: US09581544申请日: 2000-07-11
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公开(公告)号: US06416887B1公开(公告)日: 2002-07-09
- 发明人: Shizuo Tokito , Koji Noda , Hisayoshi Fujikawa , Masahiko Ishii , Yasunori Taga , Makoto Kimura , Yasuhiko Sawaki
- 申请人: Shizuo Tokito , Koji Noda , Hisayoshi Fujikawa , Masahiko Ishii , Yasunori Taga , Makoto Kimura , Yasuhiko Sawaki
- 优先权: JP10-321080 19981111; JP11-065683 19991103
- 主分类号: H05B3314
- IPC分类号: H05B3314
摘要:
An organic EL element has an anode, a cathode, and one or more organic compound layers sandwiched between the anode and cathode, wherein at least one layer of said organic compound layers includes an organic compound denoted by chemical formula (1), which is more specifically denoted by chemical formulas (2)-(5). By introducing desired substituents at R1-R4, these compounds can be made to demonstrate hole transport function, emissive function, electron transport function, or a combination of those functions. Due to its tendency to be structurally non-planar, the organic compound does not crystallize easily, and has a high glass transition temperature. Use of such a compound in an organic EL element enhances element life.
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