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

    IPC分类号: H01L51/00 H01L51/50

    摘要: 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).