Organic electroluminescent device configured to emit light with high luminous efficiency

    公开(公告)号:US11489121B1

    公开(公告)日:2022-11-01

    申请号:US17461806

    申请日:2021-08-30

    Abstract: An organic electroluminescence device includes an anode, a cathode, a first emitting layer and a second emitting layer that are interposed between the anode and the cathode and are in a direct contact with each other, and a first electron transporting layer between the cathode and the first emitting layer and the second emitting layer being in a direct contact with each other. The first emitting layer contains a first compound represented by a formula (1) as a first host material, the first compound having at least one group represented by a formula (11). The second emitting layer contains a second compound represented by a formula (2) as a second host material. The first electron transporting layer contains a third compound represented by a formula (3).

    Organic electroluminescence device and novel compound

    公开(公告)号:US10249832B1

    公开(公告)日:2019-04-02

    申请号:US16043074

    申请日:2018-07-23

    Abstract: To provide an organic electroluminescence device having a high luminous efficiency and a novel compound that can be used as a material for an organic electroluminescence device having a high luminous efficiency.A compound represented by the following formula (3-I), wherein at least one of R1 to R7 and R10 to R11 is —N(R36)(R37). R31 to R37 are independently a hydrogen atom, a substituted or unsubstituted alkyl group including 1 to 50 carbon atoms, a substituted or unsubstituted cycloalkyl group including 3 to 50 ring carbon atoms, a substituted or unsubstituted aryl group including 6 to 50 ring carbon atoms or a substituted or unsubstituted monovalent heterocyclic group including 5 to 50 ring atoms.

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