利索-全球专利检索

  1. 登录
  2. 注册

搜索结果

33 条记录 (耗时 0.03 秒)

    ORGANIC ELECTROLUMINESCENT ELEMENT
    3.
    发明申请
    ORGANIC ELECTROLUMINESCENT ELEMENT 审中-公开

    公开(公告)号：US20190229277A1

    公开(公告)日：2019-07-25

    申请号：US16244454

    申请日：2019-01-10

    申请人： Kwansei Gakuin Educational Foundation ,  JNC Corporation

    发明人： Takuji Hatakeyama ,  Yuko Yamaga ,  Daisuke Baba ,  Kazushi Shiren

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

    摘要： By manufacturing an organic EL element using a material for a light emitting layer including a pyrene-based compound represented by the following formula (2) as a host material and a polycyclic aromatic compound in which a plurality of aromatic rings is linked with a boron atom and a nitrogen atom or an oxygen atom as a dopant material, an organic EL element having, for example, excellent light emission efficiency is provided. In the above formula (2), at least one hydrogen atom in a pyrene moiety may be substituted by an aryl having 6 to 10 carbon atoms or the like. Ar represents an aryl having 14 to 40 carbon atoms or a heteroaryl having 12 to 40 carbon atoms. These groups may be substituted by an aryl having 6 to 10 carbon atoms or the like. s and p each independently represent an integer of 1 or 2. s and p do not simultaneously represent 2. One or more hydrogen atoms in a compound represented by formula (2) may be each independently substituted by a halogen atom, cyano, or a deuterium atom.

    Polycyclic aromatic compound and light emission layer-forming composition
    6.
    发明授权
    Polycyclic aromatic compound and light emission layer-forming composition 有权

    公开(公告)号：US10689402B2

    公开(公告)日：2020-06-23

    申请号：US15559912

    申请日：2016-03-02

    申请人： Kwansei Gakuin Educational Foundation ,  JNC Corporation

    发明人： Takuji Hatakeyama ,  Yasuhiro Kondo ,  Keiichi Nakamoto ,  Motoki Yanai

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

    摘要： The objective of the invention is to provide a polycyclic aromatic compound in which solubility to a solvent, film formability, wet coatability, thermal stability, and in-plane orientation are improved. This objective is achieved by a light emission layer-forming composition comprising: as a first component, at least one type of dopant material selected from the group consisting of polycyclic aromatic compounds represented by general formula (A) and polycyclic aromatic oligomer compounds including a plurality of structures represented by general formula (A); as a second component, a specific low-molecular-weight host material; and, as a third component, at least one type of organic solvent. In formula (A), ring A, ring B, and ring C each independently represent an aryl ring or a hetero aryl ring, Y1 is B, and X1 and X2 each independently represent O or N—R wherein at least one of X1 and X2 is N—R.