ELECTROLUMINESCENT DEVICE, AND DISPLAY DEVICE COMPRISING THEREOF

    公开(公告)号:US20230121473A1

    公开(公告)日:2023-04-20

    申请号:US18083782

    申请日:2022-12-19

    摘要: An electroluminescent device and a display device including the same. The electroluminescent device includes a first electrode and a second electrode facing each other; a light emitting layer disposed between the first electrode and the second electrode, the light emitting layer including a quantum dot; a hole transport layer disposed between the light emitting layer and the first electrode; and an electron transport layer disposed between the light emitting layer and the second electrode, wherein the hole transport layer, the light emitting layer, or a combination thereof includes thermally activated delayed fluorescence material, and the thermally activated delayed fluorescence material is present in an amount of greater than or equal to about 0.01 wt % and less than about 10 weight percent (wt %), based on 100 wt % of the hole transport layer, the light emitting layer, or the combination thereof including the thermally activated delayed fluorescence material.

    PHOTOELECTRIC DEVICE
    4.
    发明申请

    公开(公告)号:US20230102357A1

    公开(公告)日:2023-03-30

    申请号:US17800655

    申请日:2021-10-22

    发明人: Zhenqi ZHANG

    摘要: Provided in the present disclosure is a photoelectric device. For the photoelectric device, a modification layer is added on the surface of a first electrode layer on the side away from a base substrate. The presence of the modification layer can prevent the direct contact of the first electrode layer and other film layers, thereby alleviating the problem of corrosion of indium-containing oxide which constitutes the first electrode layer. Furthermore, an indium-ion trapping group contained in the modification layer can fix indium ions released after the corrosion of the indium-containing oxide to the surface of the first electrode layer, thereby preventing the indium ions from moving to the inner part of the photoelectric device, which can then increase the service life of the photoelectric device.