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    Organic electroluminescence device and polycyclic compound for organic electroluminescence device
    31.
    发明授权
    Organic electroluminescence device and polycyclic compound for organic electroluminescence device 有权

    公开(公告)号：US11569457B2

    公开(公告)日：2023-01-31

    申请号：US16547504

    申请日：2019-08-21

    Applicant: Samsung Display Co., Ltd.

    Inventor： Jungsub Lee ,  Hyein Jeong ,  Hye Jeong Park

    IPC: H01L51/00 ,  C07F5/02 ,  C09K11/06 ,  H01L51/50

    Abstract: An organic electroluminescence device of an embodiment includes a first electrode, a second electrode and a plurality of organic layers disposed between the first electrode and the second electrode, in which at least one of the organic layers includes a polycyclic compound including a plurality of electron donors and an electron acceptor connecting the electron donors, at least one of the electron donors is a condensed ring including a borepine core, and the electron acceptor includes a phenyl group including, as a substituent, at least one cyano group or a heterocycle including at least one nitrogen atom, or a heteroaryl group including an oxygen atom or a sulfur atom for forming a ring, thereby achieving improved emission efficiency.

    Organic light-emitting device
    33.
    发明授权
    Organic light-emitting device 有权

    公开(公告)号：US11450827B2

    公开(公告)日：2022-09-20

    申请号：US15986631

    申请日：2018-05-22

    Applicant: Samsung Display Co., Ltd.

    Inventor： Miehwa Park ,  Taekyung Kim ,  Jungsub Lee

    IPC: H01L51/50 ,  H01L51/00 ,  H01L51/52

    Abstract: An organic light-emitting device is provided, including: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode and comprising an emission layer, wherein the emission layer includes a host and a dopant, wherein the host includes at least one selected from a phosphine oxide-based compound, a pyrimidine-containing compound, a triazine-containing compound, and a cyano group-containing compound, and the dopant satisfies Equation 1, wherein, in Equation 1, ED, S1 refers to a singlet state energy level (eV) of the dopant; and ED, T1 refers to a triplet state energy level (eV) of the dopant: |ED,S1−ED,T1|≤0.2 eV.  Equation 1

    Organic light-emitting device
    35.
    发明授权
    Organic light-emitting device 有权

    公开(公告)号：US10930853B2

    公开(公告)日：2021-02-23

    申请号：US15182298

    申请日：2016-06-14

    Applicant: SAMSUNG DISPLAY CO., LTD.

    Inventor： Seulong Kim ,  Younsun Kim ,  Dongwoo Shin ,  Jungsub Lee ,  Naoyuki Ito ,  Jino Lim

    IPC: H01L51/00 ,  H01L51/50

    Abstract: An organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; an emission layer between the first electrode and the second electrode; a hole transport region between the first electrode and the emission layer; and an electron transport region between the emission layer and the second electrode, wherein the hole transport region includes a first compound, the emission layer includes a second compound as a fluorescent host and a third compound as a fluorescent dopant, and the electron transport region includes a fourth compound and a fifth compound including, as a ring-forming moiety, a nitrogen-containing heterocyclic group including *═N—*′, wherein the first compound, the fourth compound, and at least one selected from the second compound and the third compound each independently include at least one group selected from groups represented by Formulae A to D:

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