利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

36 条记录 (耗时 0.02 秒)

    ORGANIC ELECTROLUMINESCENT DEVICE
    4.
    发明公开
    ORGANIC ELECTROLUMINESCENT DEVICE 审中-公开

    公开(公告)号：EP4152910A1

    公开(公告)日：2023-03-22

    申请号：EP22204502.3

    申请日：2014-08-13

    申请人： Kyulux, Inc.

    发明人： Nakanotani, Hajime ,  Adachi, Chihaya ,  Higuchi, Takahiro ,  Furukawa, Taro

    IPC分类号： H10K50/11 ,  H10K101/20

    摘要： An organic electroluminescent device having an anode (2), a cathode (7), and a light emitting layer (5) between the anode (2) and the cathode (7), in which the light emitting layer (5) contains a first organic compound, a second organic compound, and a third organic compound that satisfy the following expression (A), the second organic compound is a delayed fluorescent material, and the third organic compound is a light emitting material, is capable of enhancing the light emission efficiency. E S1 (A), E S1 (B) and E S1 (C) represent a lowest singlet excitation energy level of the first, second and third organic compound, respectively. E S 1 A > E S 1 B > E S 1 C

    HOST MATERIAL, COMPOSITION, AND ORGANIC ELECTROLUMINESCENT ELEMENT
    5.
    发明公开
    HOST MATERIAL, COMPOSITION, AND ORGANIC ELECTROLUMINESCENT ELEMENT 审中-公开

    公开(公告)号：EP4102588A1

    公开(公告)日：2022-12-14

    申请号：EP21750815.9

    申请日：2021-02-04

    申请人： Kyulux, Inc.

    发明人： OZAWA, Hiroaki

    IPC分类号： H01L51/50 ,  C07D207/448

    摘要： To improve the emission efficiency, the driving voltage and the lifetime of an organic light-emitting device using a delayed fluorescent material. A host material for a delayed fluorescent material, containing a compound represented by the following general formula: R 1 to R 5 each are a substituent not containing a cyano group, n1 to n5 each are 0 to 4, Ar is a monocyclic arylene group or a monocyclic heteroarylene group.

    ORGANIC ELECTROLUMINESCENT ELEMENT
    8.
    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.

    ORGANIC LIGHT EMITTING ELEMENT
    9.
    发明公开
    ORGANIC LIGHT EMITTING ELEMENT 审中-实审

    公开(公告)号：EP4343875A1

    公开(公告)日：2024-03-27

    申请号：EP22804420.2

    申请日：2022-03-30

    申请人： Kyulux, Inc.

    发明人： YOSHIZAKI, Makoto ,  ENDO, Ayataka

    IPC分类号： H01L51/50

    摘要： An organic light emitting device containing: a light emitting layer having a first organic compound (1), a second organic compound (2) which is a delayed fluorescent material, and a third organic compound (3); and an adjacent layer adjacent to the light emitting layer, and satisfying E S1 (1)>E S1 (2)>E S1 (3), has a long emission lifetime and high light emission efficiency. Esi represents a lowest excited singlet energy.