利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

795 条记录 (耗时 0.025 秒)

    ORGANIC ELECTROLUMINESCENT ELEMENT
    3.
    发明公开
    ORGANIC ELECTROLUMINESCENT ELEMENT 审中-实审

    公开(公告)号：EP4361158A1

    公开(公告)日：2024-05-01

    申请号：EP22828032.7

    申请日：2022-03-30

    申请人： Kyulux, Inc.

    发明人： YOSHIZAKI Makoto ,  MORIMOTO Kei ,  HWANG Songhye ,  OZAWA Hiroaki ,  KAKIZOE Hayato ,  KODAMA Yuka

    IPC分类号： C07F5/02 ,  C09K11/06 ,  C07D209/86 ,  C07D519/00 ,  H01L51/50

    CPC分类号： C07D519/00 ,  C07D209/86 ,  C07F5/02 ,  C09K11/06

    摘要： Provided is an organic electroluminescence device in which a high luminous efficiency can be obtained even in a case where the LUMO level of a fluorescence material is lower than the LUMO level of a delayed fluorescence material. In the organic electroluminescence device, a light-emitting layer contains a first organic compound, a second organic compound that is a delayed fluorescence material, and a third organic compound that emits fluorescence, the second organic compound has the LUMO energy higher than that of the third organic compound, the largest component of light emitted from the device is fluorescence from the third organic compound, and an orientation value of the third organic compound in the light-emitting layer is -0.3 or less.

    DEUTERIDE AND ORGANIC ELECTROLUMINESCENT ELEMENT
    4.
    发明公开
    DEUTERIDE AND ORGANIC ELECTROLUMINESCENT ELEMENT 审中-实审

    公开(公告)号：EP4349812A1

    公开(公告)日：2024-04-10

    申请号：EP22815993.5

    申请日：2022-05-27

    申请人： NIPPON STEEL Chemical & Material Co., Ltd.

    发明人： IKENAGA, Yuji ,  KAI, Takahiro ,  HAYASHI, Kentaro ,  SAKAI, Mitsuru ,  SHIMAMOTO, Yuya

    IPC分类号： C07D209/86 ,  C09K11/06 ,  H01L51/50 ,  H05B33/10

    摘要： Abstract: To provide a practically useful organic EL device having a low driving voltage and also having a high efficiency and a long lifetime, and a deuteride suitable therefor. A deuteride of a compound represented by the following general formula (1), in which a rate of deuteration of hydrogen atoms on two carbazole rings in the compound is 30% or more and a rate of deuteration of hydrogen atoms on aromatic rings in Ar 1 and Ar 2 in the compound are 40% or more, wherein Ar 1 and Ar 2 each independently represent a substituted or unsubstituted aromatic hydrocarbon group having 6 to 30 carbon atoms, or a substituted or unsubstituted linked aromatic group in which two to five of these aromatic rings are linked to each other, and aromatic hydrocarbon groups in the case of these aromatic rings linked are the same as or different from each other.