知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

54 records (took 0.023 seconds)

    ORGANIC LIGHT EMITTING DEVICE
    3.
    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 DIODE
    4.
    发明申请
    ORGANIC LIGHT EMITTING DIODE 有权

    公开(公告)号：US20210050528A1

    公开(公告)日：2021-02-18

    申请号：US16761908

    申请日：2019-01-28

    Applicant: LG CHEM, LTD.

    Inventor： Yongbum CHA ,  Boonjae JANG ,  Sung Kil HONG ,  Sang Duk SUH

    IPC: H01L51/00

    Abstract: An organic light emitting device including: a positive electrode; a negative electrode facing the positive electrode; a light emitting layer between the positive electrode and the negative electrode; a first organic material layer comprising a compound of Formula 1 provided between the negative electrode and the light emitting layer; and a second organic material layer comprising at least one compound of Formulae 2 or 3 provided between the negative electrode and the first organic material layer: wherein the first organic layer at least one of X1 to X3 is N, at least one of X4 to X6 is N, at least one of X7 to X9 is N, and at least one of X10 to X12 is N, and each remaining one is CH;

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

    公开(公告)号：US20210305516A1

    公开(公告)日：2021-09-30

    申请号：US17251344

    申请日：2019-09-03

    Applicant: LG CHEM, LTD.

    Inventor： Dong Uk HEO ,  Sung Kil HONG ,  Jungoh HUH ,  Miyeon HAN ,  Jae Tak LEE ,  Junghoon YANG ,  Heekyung YUN

    IPC: H01L51/00 ,  C07D251/24 ,  C09K11/06 ,  C07D213/16 ,  C07D487/04 ,  C07D495/04 ,  C07D405/10 ,  C07D405/04

    Abstract: Provided is an organic light emitting device including a first electrode; a second electrode opposite to the first electrode; and a first organic material layer and a second organic material layer provided between the first electrode and the second electrode, wherein the first organic material layer includes a compound of Chemical Formula 1: wherein: at least one of Xa to Xc is N, and the rest are CR; and Ar2 to Ar4 are each independently a substituted or unsubstituted aryl or heterocyclic group, and the second organic material layer includes a compound of (HAr)a-[L1-Ar1-L2-(CN)b]c  Chemical Formula 2: wherein: HAr is a substituted or unsubstituted heterocyclic group including at least one or more Ns; L1 and L2 are each independently a direct bond or a substituted or unsubstituted arylene or divalent heterocyclic group; and Ar1 is a direct bond, —O—, or a substituted or unsubstituted arylene or divalent heterocyclic group.

    NOVEL COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING THE SAME
    10.
    发明申请
    NOVEL COMPOUND AND ORGANIC LIGHT EMITTING DEVICE COMPRISING THE SAME 有权

    公开(公告)号：US20210296593A1

    公开(公告)日：2021-09-23

    申请号：US17260763

    申请日：2019-08-02

    Applicant: LG CHEM, LTD.

    Inventor： Yongbum CHA ,  Sung Kil HONG ,  Dong Uk HEO ,  Wanpyo HONG ,  Sujeong GEUM

    IPC: H01L51/00 ,  C07D251/24 ,  C09K11/06 ,  C07D239/26 ,  C07D401/14 ,  C07D213/57

    Abstract: Provided is a compound of Chemical Formula 1: wherein, in Chemical Formula 1: X1 to X3 are each independently N or CH, provided that at least one of X1 to X3 is N; X4 to X6 are each independently N or CH, provided that at least one of X4 to X6 is N; Ar1 to Ar4 are each independently a substituted or unsubstituted C6-60 aryl, or a substituted or unsubstituted C2-60 heteroaryl containing any one or more selected from the group consisting of N, O, and S; L1 to L3 are each independently a single bond, a substituted or unsubstituted C6-60 arylene, or a substituted or unsubstituted C2-60 heteroarylene containing any one or more selected from the group consisting of N, O, and S; and n is 1 or 2, and an organic light emitting device including the same.

Patent Agency Ranking