Organic electroluminescent devices with additive
    2.
    发明授权
    Organic electroluminescent devices with additive 有权
    具有添加剂的有机电致发光器件

    公开(公告)号:US07374828B2

    公开(公告)日:2008-05-20

    申请号:US10729737

    申请日:2003-12-05

    IPC分类号: H01L51/50

    摘要: Disclosed is an electroluminescent device comprising a cathode and an anode and, located therebetween, a light-emitting layer (LEL) comprising a phosphorescent guest material, a hole- and electron-transporting host material, and an efficiency-enhancing material having an ionization potential lower than that of the host material and a triplet energy level that is lower than that of the phosphorescent guest material by no more than 0.2 eV. Such a device provides useful light emission features.

    摘要翻译: 公开了一种电致发光器件,其包括阴极和阳极,并且位于其间,包含磷光客体材料,空穴和电子传输基质材料的发光层(LEL)和具有电离电位的效率增强材料 低于主体材料的三重态能级,低于磷光客体材料的三重态能级不超过0.2eV。 这种装置提供有用的发光特征。

    OLED electron-injecting layer
    4.
    发明授权
    OLED electron-injecting layer 有权
    OLED电子注入层

    公开(公告)号:US07629741B2

    公开(公告)日:2009-12-08

    申请号:US11124300

    申请日:2005-05-06

    IPC分类号: H01L51/54

    摘要: An OLED includes an anode, a light-emitting layer disposed over the anode, and a first electron-injecting layer disposed over the light-emitting layer, wherein the first electron-injecting layer includes at least one organic host material having a reduction potential less than −1.0 V vs. a Saturated Calomel Electrode and at least one dopant material capable of reducing the organic host material. The OLED also includes a second electron-injecting layer disposed in contact with the first electron-injecting layer, wherein the second electron-injecting layer includes at least one organic material having a reduction potential greater than −1.0 V vs. a Saturated Calomel Electrode, and a cathode disposed over the second electron-injecting layer.

    摘要翻译: OLED包括阳极,设置在阳极上的发光层和设置在发光层上的第一电子注入层,其中第一电子注入层包括至少一种具有还原电位的有机主体材料 比-1.0V对饱和马氏体电极和能够还原有机主体材料的至少一种掺杂剂材料。 OLED还包括与第一电子注入层接触设置的第二电子注入层,其中第二电子注入层包括至少一种与饱和碳酸钙电极相比具有大于-1.0V的还原电位的有机材料, 以及设置在第二电子注入层上的阴极。

    Organic electroluminescent device having a stabilizing dopant in a hole-transport layer or in an electron-transport layer distant from the emission layer
    6.
    发明授权
    Organic electroluminescent device having a stabilizing dopant in a hole-transport layer or in an electron-transport layer distant from the emission layer 有权
    在空穴传输层或远离发射层的电子传输层中具有稳定掺杂剂的有机电致发光器件

    公开(公告)号:US06692846B2

    公开(公告)日:2004-02-17

    申请号:US10176026

    申请日:2002-06-20

    IPC分类号: H05B3314

    摘要: An organic electroluminescent device includes a substrate; an anode and a cathode positioned relative to the substrate; an emission layer disposed between the anode and the cathode; a hole-transport layer disposed between the anode and the emission layer; and an electron-transport layer disposed between the cathode and the emission layer. The hole-transport layer includes two or more sublayers, one sublayer containing a stabilizing dopant, and the sublayer adjacent to the emission layer containing no stabilizing dopant. Alternatively or in addition, the electron-transport layer includes two or more sublayers, one sublayer containing a stabilizing dopant, and the sublayer adjacent to the emission layer containing no stabilizing dopant. The stabilizing dopant includes rubrene or derivatives thereof.

    摘要翻译: 有机电致发光器件包括:衬底; 相对于衬底定位的阳极和阴极; 布置在阳极和阴极之间的发射层; 设置在阳极和发射层之间的空穴传输层; 以及设置在阴极和发射层之间的电子传输层。 空穴传输层包括两个或更多个子层,一个子层含有稳定掺杂剂,以及与不含稳定掺杂剂的发射层相邻的子层。 或者或另外,电子传输层包括两个或更多个子层,一个子层包含稳定掺杂剂,以及与不含稳定掺杂剂的发射层相邻的子层。 稳定掺杂剂包括红荧烯或其衍生物。

    OLED WITH HIGH EFFICIENCY BLUE LIGHT-EMITTING LAYER
    9.
    发明申请
    OLED WITH HIGH EFFICIENCY BLUE LIGHT-EMITTING LAYER 有权
    OLED高效蓝色发光层

    公开(公告)号:US20110147716A1

    公开(公告)日:2011-06-23

    申请号:US12640100

    申请日:2009-12-17

    IPC分类号: H01L51/54 H01L51/52

    摘要: The invention provides an OLED device comprising an anode, a cathode and a light-emitting layer located therebetween, said light-emitting layer comprising an anthracene host and a styrylamine blue light-emitting compound; and, located between the said light-emitting layer and the cathode, a first electron-transporting layer that is greater than 0.5 nm and less than 5 nm thick; and a second electron-transporting layer consisting essentially of an anthracene located between the first electron-transporting layer and the cathode. The first electron-transporting layer includes a compound with a less negative LUMO level than the anthracene in the second electron-transporting layer. Devices of the invention provide improvement in features such as efficiency.

    摘要翻译: 本发明提供了一种OLED器件,其包括阳极,阴极和位于其间的发光层,所述发光层包含蒽主体和苯乙烯胺蓝发光化合物; 并且位于所述发光层和阴极之间,第一电子传输层大于0.5nm且小于5nm厚; 以及基本上由位于第一电子传输层和阴极之间的蒽组成的第二电子传输层。 第一电子传输层包括具有比第二电子传输层中的蒽更低的负LUMO能级的化合物。 本发明的装置提供诸如效率等特征的改进。

    Organic light-emitting device having a color-neutral dopant in a hole-transport layer and/or in an electron-transport layer
    10.
    发明授权
    Organic light-emitting device having a color-neutral dopant in a hole-transport layer and/or in an electron-transport layer 有权
    在空穴传输层和/或电子传输层中具有着色中性掺杂剂的有机发光器件

    公开(公告)号:US06565996B2

    公开(公告)日:2003-05-20

    申请号:US09875646

    申请日:2001-06-06

    IPC分类号: H05B3314

    摘要: Disclosed are organic electroluminescent devices comprising a substrate, an anode and a cathode disposed over the substrate, an emission layer (EML) disposed between the anode and the cathode, a hole-transport layer (HTL) disposed between the anode and the emission layer, and an electron-transport layer (ETL) disposed between the cathode and the emission layer. A sublayer of the HTL, the ETL, or both the HTL and the ETL comprises a derivative of anthracene as a color-neutral dopant, the sublayer being adjacent to the EML. A color-neutral dopant is a dopant whose presence does not alter the electroluminescent color of the device.

    摘要翻译: 公开了包括设置在基板上的基板,阳极和阴极的有机电致发光器件,设置在阳极和阴极之间的发射层(EML),设置在阳极和发射层之间的空穴传输层(HTL) 以及设置在阴极和发射层之间的电子传输层(ETL)。 HTL,ETL或HTL和ETL两者的子层包含蒽的衍生物作为颜色 - 中性掺杂剂,子层与EML相邻。 颜色中性掺杂剂是其存在不改变器件的电致发光颜色的掺杂剂。