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    ORGANIC LIGHT-EMITTING DEVICE
    21.
    发明申请
    ORGANIC LIGHT-EMITTING DEVICE 有权

    公开(公告)号：US20210265568A1

    公开(公告)日：2021-08-26

    申请号：US17031828

    申请日：2020-09-24

    Applicant: Samsung Display Co., Ltd.

    Inventor： Wonsuk HAN ,  Donghui LEE ,  Hakchoong LEE ,  Dongchan KIM ,  Jiyoung MOON ,  Jihye LEE ,  Chulsoon LEE ,  Haemyeong LEE ,  Yoonhyeung CHO

    IPC: H01L51/00

    Abstract: An organic light-emitting device includes an auxiliary layer located between a first electrode and a hole injection layer or a hole transport layer and including a metal fluoride. The metal of the metal fluoride may be a Group III metal having a high work function of 3.8 eV or more. The hole injection barrier at the interface between the first electrode and the hole injection layer may be adjusted by the fluoride of the high work function metal in the auxiliary layer so that the electron-hole charge balance and the efficiency of the organic light-emitting device may be improved.

    ORGANIC LIGHT-EMITTING DIODE DISPLAY DEVICE
    22.
    发明申请
    ORGANIC LIGHT-EMITTING DIODE DISPLAY DEVICE 有权

    公开(公告)号：US20210210733A1

    公开(公告)日：2021-07-08

    申请号：US17212003

    申请日：2021-03-25

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Sanghoon YIM ,  Wonjong KIM ,  Yisu KIM ,  Minho OH ,  Wonmin YUN ,  Kwanhee LEE ,  Byoungduk LEE ,  Yoonhyeung CHO ,  Youngcheol JOO ,  Yongchan JU

    IPC: H01L51/52 ,  H01L27/32 ,  H01L51/56

    Abstract: An display device including a substrate, an organic light-emitting diode, and a thin film encapsulation layer. The organic light-emitting diode is disposed on the substrate. The thin film encapsulation layer is disposed on the organic light-emitting diode. The thin film encapsulation layer includes at least one inorganic layer, at least one organic layer, and a first refractive-index control layer. The at least one organic layer is alternately disposed with the at least one inorganic layer. The first refractive-index layer is disposed between one of the at least one inorganic layer and one of the at least one organic layer disposed adjacent to each other. The first refractive-index control layer has a refractive-index variation ratio per unit length (Δn/nm) from about 0.001/nm to about 0.002/nm along a direction from the organic light-emitting diode toward the thin film encapsulation layer.

    LIGHT-EMITTING DEVICE AND APPARATUS INCLUDING THE SAME
    23.
    发明申请
    LIGHT-EMITTING DEVICE AND APPARATUS INCLUDING THE SAME 有权

    公开(公告)号：US20210104707A1

    公开(公告)日：2021-04-08

    申请号：US16895842

    申请日：2020-06-08

    Applicant: Samsung Display Co., Ltd.

    Inventor： Dongchan KIM ,  Jiyoung MOON ,  Donghui LEE ,  Jihye LEE ,  Chulsoon LEE ,  Hakchoong LEE ,  Haemyeong LEE ,  Wonsuk HAN ,  Jihwan YOON ,  Yoonhyeung CHO

    IPC: H01L51/52 ,  H01L27/32 ,  H01L51/50

    Abstract: A light-emitting device includes: a first electrode; a second electrode facing the first electrode; light-emitting units in the number of n between the first electrode and the second electrode; and a charge-generation unit(s) in the number of n-1 between the adjacent light-emitting units. The light-emitting units each include an emission layer, and at least one of the charge-generation unit(s) includes an n-type charge-generation layer, a p-type charge-generation layer, and an interlayer between the n-type charge-generation layer and the p-type charge-generation layer. The p-type charge-generation layer includes a first material and a second material, the first material includes a hole-transporting organic compound, an inorganic insulation compound, or any combination thereof, the second material includes at least one inorganic semiconductor compound, the interlayer comprises a third material, and the third material is selected from an organic compound, an inorganic semiconductor compound, and an inorganic insulation compound.

    ORGANIC LIGHT-EMITTING DEVICE
    26.
    发明申请
    ORGANIC LIGHT-EMITTING DEVICE 审中-公开

    公开(公告)号：US20170186981A1

    公开(公告)日：2017-06-29

    申请号：US15391194

    申请日：2016-12-27

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Wonsuk HAN ,  Dongchan KIM ,  Wonjong KIM ,  Eungdo KIM ,  Dongkyu SEO ,  Jihye LEE ,  Dahea IM ,  Sanghoon YIM ,  Yoonhyeung CHO

    IPC: H01L51/00

    Abstract: An organic light-emitting device includes a first electrode, a second electrode facing the first electrode, and an emission layer disposed between the first electrode and the second electrode. An electron transport region is between the second electrode and the emission layer. The electron transport region includes an electron injection layer including a first component including at least one halide of an alkali metal (Group I), a second component including at least one organometallic compound, and a third component including at least one of a lanthanide metal or an alkaline earth metal (Group II).

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