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    ORGANIC ELECTROLUMINESCENT DEVICE
    5.
    发明申请
    ORGANIC ELECTROLUMINESCENT DEVICE 有权

    公开(公告)号：US20210351358A1

    公开(公告)日：2021-11-11

    申请号：US17237988

    申请日：2021-04-22

    申请人： ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

    发明人： Dong-Hyung LEE ,  Chi-Sik KIM ,  Soo-Yong LEE ,  Seung-Hoon YOO ,  Yoo-Jin DOH

    IPC分类号： H01L51/00

    摘要： The present disclosure relates to an organic electroluminescent device comprising a first electrode, a second electrode, and at least one organic layer interposed between the first electrode and the second electrode, wherein the organic layer comprises a light-emitting layer and a hole transport zone. By comprising a deuterated compound in at least one of the light-emitting layer and the hole transport zone, it is possible to provide an organic electroluminescent device having improved driving voltage, luminous efficiency, power efficiency, and/or lifetime properties.

    ORGANIC LIGHT EMITTING DIODE DEVICE
    6.
    发明申请
    ORGANIC LIGHT EMITTING DIODE DEVICE 有权

    公开(公告)号：US20210104692A1

    公开(公告)日：2021-04-08

    申请号：US17039462

    申请日：2020-09-30

    申请人： LG DISPLAY CO., LTD. ,  ROHM AND HAAS ELECTRONIC MATERIALS KOREA LTD.

    发明人： Dohan KIM ,  Hyeseung KANG ,  Kyoung-Jin PARK ,  Ji-Song JUN ,  Chi-Sik KIM

    IPC分类号： H01L51/00

    摘要： Disclosed herein is an organic light emitting diode device. The organic light emitting diode device includes an anode, a cathode and a light emitting layer. The light emitting layer has a structure where a blue light emitter and a red/green simultaneous light emitter are stacked. The red/green simultaneous light emitter has a structure where a red light emitter and a green light emitter are stacked. The red light emitter includes a red host compound, and in some embodiments, the red host compound includes a spirobisfluorene-based compound where an aryl amino group is substituted. The green light emitter includes a green host compound, and the green host compound includes a mixture of a first green host compound and a second green host compound. In some embodiments, the first green host compound includes a biscarbazole-based compound and the second green host compound includes an indolocarbazole-based compound.