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    Low voltage organic electroluminescent element
    21.
    发明授权
    Low voltage organic electroluminescent element 有权
    低电压有机电致发光元件

    公开(公告)号：US07563518B2

    公开(公告)日：2009-07-21

    申请号：US11192072

    申请日：2005-07-28

    申请人： William J. Begley ,  Tukaram K. Hatwar ,  Natasha Andrievsky

    发明人： William J. Begley ,  Tukaram K. Hatwar ,  Natasha Andrievsky

    IPC分类号： H01L51/54

    CPC分类号： H01L51/5096 ,  H01L51/0054 ,  H01L51/0081 ,  H01L51/5048 ,  H01L51/5052 ,  Y10S428/917

    摘要： An OLED device comprises a cathode, an electron-transporting layer (ETL), a light-emitting layer (LEL) containing a fluorescent light-emitting material, a hole-transporting layer (HTL), and an anode, in that order, wherein the ETL comprises a mixture of compounds, including a first compound and at least one second compound, and wherein there is present a hole blocking layer (HBL) adjacent to the LEL on the cathode side. It provides a reduced drive voltage with comparable color hue. The first compound is present in an amount of 50% to 90% by volume and is represented by Formula (2): Wherein R1 and R4 represent the substituent and neither are hydrogen; R2 and R3 represent hydrogen; Ar1 and Ar4 represent the same aromatic group; and Ar2 and Ar3 represent the same aromatic group.

    摘要翻译： OLED器件依次包括阴极，电子传输层（ETL），含有荧光发光材料的发光层（LEL），空穴传输层（HTL）和阳极，其中 ETL包括包含第一化合物和至少一种第二化合物的化合物的混合物，并且其中在阴极侧存在与LEL相邻的空穴阻挡层（HBL）。 它提供了具有可比色调的降低的驱动电压。 第一化合物的存在量为50体积％至90体积％，由式（2）表示：其中R 1和R 4表示相同的取代基，也不是氢; R2和R3表示氢; Ar1和Ar4代表相同的芳基; Ar 2和Ar 3表示相同的芳基。

    OLED DEVICE WITH ELECTRON TRANSPORT MATERIAL COMBINATION
    26.
    发明申请
    OLED DEVICE WITH ELECTRON TRANSPORT MATERIAL COMBINATION 审中-公开
    具有电子传输材料组合的OLED器件

    公开(公告)号：US20090110956A1

    公开(公告)日：2009-04-30

    申请号：US11924624

    申请日：2007-10-26

    申请人： William J. Begley ,  Tukaram K. Hatwar

    发明人： William J. Begley ,  Tukaram K. Hatwar

    IPC分类号： B32B9/00

    CPC分类号： H01L51/0054 ,  H01L51/5048 ,  H01L2251/308

    摘要： The invention provides an OLED device comprising a cathode, an anode, and having there between a light-emitting layer, further comprising, between the cathode and the light emitting layer, a non-luminescent electron transporting layer containing a compound with a 7,10-diaryl substituted fluoranthene nucleus having no aromatic rings annulated to the fluoranthene nucleus and an organic alkali metal salt, wherein the % volume of the organic alkali metal salt in the electron-transporting is in the range of greater than 70% but less than or equal to 90%. Devices of the invention provide improvements in T90 and T95 lifetimes.

    摘要翻译： 本发明提供了一种OLED器件，其包括阴极，阳极，并且在发光层之间具有发光层，该发光层还包括在阴极和发光层之间的非发光电子传输层，其含有具有7,10 - 没有芳族环的二芳基取代的荧蒽核和有机碱金属盐，其中有机碱金属盐在电子传输中的体积百分比在大于70％但小于或等于 至90％。 本发明的装置提供了T90和T95寿命的改进。