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25 条记录 (耗时 0.017 秒)

    ORGANIC LIGHT-EMITTING DEVICE
    1.
    发明申请
    ORGANIC LIGHT-EMITTING DEVICE 有权

    公开(公告)号：US20220376178A1

    公开(公告)日：2022-11-24

    申请号：US17274238

    申请日：2019-11-06

    申请人： LG CHEM, LTD.

    发明人： Jae Seung HA ,  Minseung CHUN ,  Woochul LEE ,  Sujeong GEUM ,  Hongsik YOON

    IPC分类号： H01L51/00

    摘要： Provided is an organic light-emitting device including: an anode; a cathode provided to face the anode; and organic material layers including a light emitting layer disposed between the anode and the cathode, wherein the light emitting layer, one or more layers of the organic material layers disposed between the anode and the light emitting layer, and one or more layers from among the organic material layers disposed between the cathode and the light emitting layer, each include one or more compounds each composed of sp3 carbon as a center, the light emitting layer includes a host including one or more anthracene-based compounds, and among organic materials included in the organic material layers, the bandgap energy (Ebg) of each of the organic materials except for a dopant compound is 3 eV or more.

    ORGANIC LIGHT EMITTING DEVICE
    5.
    发明申请
    ORGANIC LIGHT EMITTING DEVICE 有权

    公开(公告)号：US20210399234A1

    公开(公告)日：2021-12-23

    申请号：US17289338

    申请日：2019-11-26

    申请人： LG CHEM, LTD.

    发明人： Seong So KIM ,  Minseung CHUN ,  Jae Seung HA ,  Sang Duk SUH ,  Sung Kil HONG

    IPC分类号： H01L51/00

    摘要： Provided is an organic light emitting device having low driving voltage, high luminous efficiency, and long lifespan characteristics, the organic light emitting device, comprising: an anode; a hole transport layer; a hole adjustment layer; a light emitting layer; an electron transport layer; and a cathode, wherein the light emitting layer includes a host and a dopant, the host has a dipole moment value of 0.4 to 1.3, and the hole adjustment layer includes a compound having a dipole moment value of 1.2 to 2.0.

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

    公开(公告)号：US20210175455A1

    公开(公告)日：2021-06-10

    申请号：US17046055

    申请日：2019-06-25

    申请人： LG CHEM, LTD.

    发明人： Minseung CHUN ,  Seong So KIM ,  Jae Seung HA

    IPC分类号： H01L51/50 ,  H01L51/52

    摘要： Provided is an organic light-emitting device including: an anode; a cathode facing the anode; two or more light-emitting layers provided between the anode and the cathode and each having a maximum light emission peak of ≤500 nm (≤500 nm emission layer); and a light-emitting layer provided between the two or more ≤500 nm emission layers, and having a maximum light emission peak at >500 nm (>500 nm emission layer), where a distance from the anode to the ≤500 nm emission layer most adjacent to the anode is 100 nm to 200 nm, the distance from the anode to the ≤500 nm emission most adjacent to the cathode is three to four times the distance from the anode to the ≤500 nm emission layer most adjacent to the anode, and an N-type charge generation layer including an alkali metal and a P-type charge generation layer including a material with an electron affinity of ≥4.8 eV are provided between each of the ≤500 nm emission layers and the emission >500 nm emission layer.

    ORGANIC LIGHT EMITTING DEVICE
    8.
    发明申请
    ORGANIC LIGHT EMITTING DEVICE 有权

    公开(公告)号：US20220389018A1

    公开(公告)日：2022-12-08

    申请号：US17619682

    申请日：2020-10-16

    申请人： LG CHEM, LTD.

    发明人： Minwoo CHOI ,  Jaeeun KIM ,  Minseung CHUN ,  Jungha LEE ,  Hyeon Soo JEON ,  Sang Young JEON

    IPC分类号： C07D487/04 ,  H01L51/00 ,  C07D409/04 ,  C07D403/10 ,  C07D405/04

    摘要： Provided is an organic light emitting device comprising an anode, a hole transport layer, a light emitting layer, an electron transport layer, and a cathode, wherein the light emitting layer comprises a compound of Chemical Formula 1 and a compound of Chemical Formula 2: wherein: A is a benzene ring; Ar1 and Ar2 are independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing one or more of N, O and S; X1 to X3 are independently N or CH, provided that at least one of them is N; L is a substituted or unsubstituted C2-60 heteroarylene or a C6-60 arylene substituted with a C2-20 heteroaryl, the heteroarylene or heteroaryl containing one or more of N, O and S; and Ar3 and Ar4 are independently a substituted or unsubstituted C6-60 aryl or C2-60 heteroaryl containing one or more of N, O and S.

    ORGANIC LIGHT EMITTING DEVICE
    9.
    发明申请
    ORGANIC LIGHT EMITTING DEVICE 有权

    公开(公告)号：US20210265573A1

    公开(公告)日：2021-08-26

    申请号：US17252527

    申请日：2019-08-16

    申请人： LG CHEM, LTD.

    发明人： Minseung CHUN ,  Seong So KIM ,  Jae Seung HA

    IPC分类号： H01L51/00

    摘要： Provided is an organic light emitting device having low driving voltage, high luminous efficiency, and long lifetime characteristics. The organic light emitting device includes an anode, a cathode that is provided opposite to the anode, a light emitting layer that is provided between the anode and the cathode, and an electron transport layer that is provided between the light emitting layer and the cathode, where an electron mobility of a material forming the electron transport layer is 10−5 cm2/Vs or less.