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    Organic electroluminescence device
    21.
    发明授权
    Organic electroluminescence device 有权

    公开(公告)号：US09660202B2

    公开(公告)日：2017-05-23

    申请号：US14583011

    申请日：2014-12-24

    申请人： SAMSUNG DISPLAY CO., LTD.

    发明人： Hiroaki Itoi ,  Ikuo Sasaki ,  Shuri Sato

    IPC分类号： H01L51/50 ,  H01L51/00

    CPC分类号： H01L51/0072 ,  H01L51/0054 ,  H01L51/006 ,  H01L51/5004 ,  H01L51/5012 ,  H01L51/5064

    摘要： An organic electroluminescence (EL) device, including an anode; a cathode; and an emission layer between the anode and the cathode, the emission layer emitting a light via a singlet excited state, a stacking structure of at least three layers having different components being provided between the anode and the emission layer, wherein the stacking structure includes: a first layer including an electron accepting compound having a lowest unoccupied molecular orbital (LUMO) level of about −9.0 eV to about −4.0 eV; a second layer including a compound represented by the following Formula (1), the second layer being closer to the emission layer than the first layer; and a third layer including a compound represented by the following Formula (2), the third layer being closer to the emission layer than the second layer, wherein the emission layer includes a compound represented by the following Formula (3).

    Organic electroluminescence materials comprising substituted carbazoles and organic electroluminescence devices having the same
    23.
    发明授权
    Organic electroluminescence materials comprising substituted carbazoles and organic electroluminescence devices having the same 有权
    包含取代的咔唑的有机电致发光材料和具有其的有机电致发光器件

    公开(公告)号：US09318711B2

    公开(公告)日：2016-04-19

    申请号：US14084907

    申请日：2013-11-20

    申请人： SAMSUNG DISPLAY CO., LTD.

    发明人： Hiroaki Itoi

    IPC分类号： C07D209/86 ,  H01L51/00 ,  C07D471/04 ,  H01L51/50

    CPC分类号： H01L51/0072 ,  C07D471/04 ,  H01L51/0081 ,  H01L51/0085 ,  H01L51/5016

    摘要： The organic EL material is represented by Formula (1): where X1 to X4 are each independently a nitrogen (N) atom or a carbon atom that is monovalently bonded to R1(C—R1), R1 is a hydrogen atom, a halogen atom, an aryl group having 6 to 18 carbon atoms, a hetero aryl group having 6 to 18 carbon atoms, or an alkyl group having 1-12 carbon atoms, R2 to R10 are each independently hydrogen, an aryl group having 6 to 30 carbon atoms, or hetero aryl group having 6 to 30 carbon atoms, and at least one of X1 to X4 is a nitrogen atom.

    摘要翻译： 有机EL材料由式（1）表示：其中X1至X4各自独立地为氮（N）原子或与R1（C-R1）单价键合的碳原子，R1为氢原子，卤素原子 ，碳原子数6〜18的芳基，碳原子数6〜18的杂芳基或碳原子数1〜12的烷基，R2〜R10各自独立地为氢，碳原子数为6〜30的芳基 或碳原子数为6〜30的杂芳基，X1〜X4中的至少一个为氮原子。

    Organic electroluminescent device
    27.
    发明授权
    Organic electroluminescent device 有权

    公开(公告)号：US10689568B2

    公开(公告)日：2020-06-23

    申请号：US16459484

    申请日：2019-07-01

    申请人： Samsung Display Co., Ltd.

    发明人： Toshiyuki Matsuura ,  Hiroaki Itoi ,  Naoya Sakamoto ,  Nobutaka Akashi

    IPC分类号： C09K11/02 ,  H01L51/50 ,  C07D403/10 ,  C07C211/61 ,  C07C211/43 ,  C07C211/44 ,  C07C211/49 ,  C07D401/14 ,  H01L51/00

    摘要： An organic electroluminescent device of which emission life may be improved. The organic electroluminescent device includes an anode, an emission layer, and an anode-side hole transport layer provided between the anode and the emission layer and including an anode-side hole transport material. An electron accepting material is doped in the anode-side hole transport layer. An intermediate hole transport material layer is provided between the anode-side hole transport layer and the emission layer and includes an intermediate hole transport material, and an emission layer-side hole transport layer is provided between the intermediate hole transport material layer and the emission layer and adjacent to the emission layer. The emission layer-side hole transport layer includes an emission layer-side hole transport material represented by the following Formula 1