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    ORGANIC LIGHT-EMITTING DEVICE
    3.
    发明申请
    ORGANIC LIGHT-EMITTING DEVICE 有权

    公开(公告)号：US20230024114A1

    公开(公告)日：2023-01-26

    申请号：US17279899

    申请日：2019-11-06

    Applicant: LG CHEM, LTD.

    Inventor： Jae Seung HA ,  Seong So KIM ,  Minseung CHUN

    IPC: H01L51/00

    Abstract: Provided is an organic light-emitting device including: an anode; a cathode provided to face the anode; a light-emitting layer provided between the anode and the cathode; a first organic material layer provided between the anode and the light-emitting layer; and a second organic material layer provided between the cathode and the light emitting layer in which each organic material, from among organic materials included in the light-emitting layer and the organic material layers, the band gap energy (Ebg) of each of the organic materials except for a dopant compound is 3 eV or more, the first organic material layer comprises one or more compounds each composed of centrally sp3 carbon, the second organic material layer includes one or more compounds each composed of centrally sp3 carbon, and the first organic material layer and the second organic material layer include three or more compounds each composed of centrally sp3 carbon.

    COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING SAME
    4.
    发明申请
    COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING SAME 有权

    公开(公告)号：US20210119137A1

    公开(公告)日：2021-04-22

    申请号：US16760598

    申请日：2019-01-25

    Applicant: LG CHEM, LTD.

    Inventor： Yongbum CHA ,  Sung Kil HONG ,  Seong So KIM ,  Minseung CHUN ,  Sang Duk SUH

    IPC: H01L51/00 ,  C07D251/24 ,  C09K11/06 ,  C07D405/10 ,  C07D409/10

    Abstract: Provided is a compound of Chemical Formula 1: wherein X1 is N or CRa, X2 is N or CRb, X3 is N or CRc, and one or more of X1 to X3 are N; Ar1 and Ar2 each independently is a substituted or unsubstituted alkyl, aryl group, or heteroaryl group; Ar3 is a substituted or unsubstituted aryl or heteroaryl group; L is a substituted or unsubstituted arylene group; R1 and R2 each independently is hydrogen, deuterium, or a substituted or unsubstituted alkyl or aryl group, or bond to each other to form a ring; R3 and Ra to Rc each independently is a hydrogen, deuterium, halogen, nitrile, nitro, hydroxyl, or a substituted or unsubstituted group selected from among a silyl, boron, alkyl, cycloalkyl, alkoxy, aryloxy, alkylthioxy, arylthioxy, alkylsulfoxy, arylsulfoxy, alkenyl, aralkyl, aralkenyl, alkylaryl, arylphosphine, phosphine oxide, aryl, or a heteroaryl group, or bond to adjacent groups to form a ring; a3 is 1 to 6; and n is 1 to 5, and an organic light emitting device comprising the same.

    ORGANIC LIGHT EMITTING DEVICE
    6.
    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

    Applicant: LG CHEM, LTD.

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

    IPC: H01L51/00

    Abstract: 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
    7.
    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

    Applicant: LG CHEM, LTD.

    Inventor： Minseung CHUN ,  Seong So KIM ,  Jae Seung HA

    IPC: H01L51/50 ,  H01L51/52

    Abstract: 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.

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