发明名称 Organic electroluminescence element
摘要 An organic EL element comprises a cathode, an EL layer of organic compound, a first hole transport layer of organic compound, a second hole transport layer of organic compound and an anode which are laminated in sequence, wherein the second hole transport layer is made of a substance represented by the following chemical formula 1: (Chemical formula 1) <IMAGE> where R each independently represents a hydrogen atom, an alkyl group of from 1 to 6 carbon atoms, a halogen group, a cyano group, a nitro group, a primary, secondary or tertiary amino group, or an aryl group of from 6 to 15 carbon atoms. This organic EL element prevents a leakage current and emits light stably for a long time.
申请公布号 US5256945(A) 申请公布日期 1993.10.26
申请号 US19910806287 申请日期 1991.12.13
申请人 PIONEER ELECTRONIC CORPORATION 发明人 IMAI, KUNIO;SHINKAI, MASANAO;WAKIMOTO, TAKEO;SHIROTA, YASUHIKO
分类号 C09K11/00;C07C211/54;C09K11/06;H01B1/12;H01L51/00;H01L51/30;H01L51/50;H05B33/14;(IPC1-7):H05B33/14;H01J1/62 主分类号 C09K11/00
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