ORGANIC LIGHT EMITTING DIODE AND ORGANIC LIGHT EMITTING DISPLAY DEVICE INCLUDING THE SAME

    公开(公告)号:US20230200235A1

    公开(公告)日:2023-06-22

    申请号:US18074059

    申请日:2022-12-02

    IPC分类号: H10K85/60 H10K59/35 H10K85/30

    摘要: An organic light emitting diode (OLED) and an organic light emitting device (such as a display device or a lighting device) comprising the OLED are described. The OLED includes a reflective electrode; a transparent electrode facing the reflective electrode; and an organic light emitting layer comprising a first emitting part and a second emitting part, positioned between the reflective electrode and the transparent electrode. The first emitting part comprises a first emitting layer and a second emitting layer, while the second emitting part comprises a third emitting layer and a fourth emitting layer. The first emitting layer is a first phosphorescent emitting layer, and the second emitting layer is a first fluorescent emitting layer. The third emitting layer can be a second phosphorescent emitting layer. The first fluorescent emitting layer is closer to the transparent electrode than the first phosphorescent emitting layer.