ORGANIC ELECTROLUMINESCENCE DEVICE AND ELECTRONIC DEVICE

    公开(公告)号:US20230033529A1

    公开(公告)日:2023-02-02

    申请号:US17345427

    申请日:2021-06-11

    摘要: An organic EL device includes: an anode, a cathode, and an emitting layer, in which the emitting layer contains a first compound of a formula (1), a second compound of a formula (2), and a third compound that exhibits delayed fluorescence, and singlet energies S1 of the first compound, the second compound, and the third compound satisfy Numerical Formula 1 and Numerical Formula 2. In the formula (1), A represents a group of a formula (a1) or the like, L represents a linking group or the like, and B represents an aryl group or the like. The first compound of the formula (1) has no carbonyl group. In the formula (2), Y21 to Y26 each independently represent an N atom, CRA, or the like. RA represents a substituent, a group of a formula (2A), or the like.

    ORGANIC ELECTROLUMINESCENT ELEMENT AND ELECTRONIC DEVICE

    公开(公告)号:US20190393426A1

    公开(公告)日:2019-12-26

    申请号:US16481178

    申请日:2018-01-30

    IPC分类号: H01L51/00 H01L51/50 C09K11/06

    摘要: An organic electroluminescence device including a light emitting layer, a first electron transporting layer, and a second electron transporting layer from an anode toward a cathode, wherein the first electron transporting layer comprises a compound represented by formula (1) and the second electron transporting layer comprises a compound represented by formula (2) has a good organic electroluminescence device performance: wherein A, L, Ar, n, and X1 to X6 are as defined in the specification.