ELECTROLUMINESCENT DEVICE AND METHOD OF MANUFACTURING THE SAME, DISPLAY PANEL AND DISPLAY APPARATUS

    公开(公告)号:US20210071070A1

    公开(公告)日:2021-03-11

    申请号:US16466250

    申请日:2018-09-27

    发明人: Bo QIAO Zheng XU Xiao WU

    IPC分类号: C09K11/00 H01L51/50 H01L51/56

    摘要: Some embodiments of the present disclosure provide an electroluminescent device and a method of manufacturing the same, a display panel and a display apparatus. The electroluminescent device includes a first electrode and a second electrode disposed oppositely. A composite functional layer is disposed between the first electrode and the second electrode, and the composite functional layer includes a thermally activated delayed fluorescence material and a luminescent material. The thermally activated delayed fluorescence material is configured to capture carriers that are not recombined in the luminescent material so as to generate excitons which are then transferred to the luminescent material.