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    Organic electroluminescent elements
    1.
    发明授权
    Organic electroluminescent elements 失效
    有机电致发光元件

    公开(公告)号：US5674597A

    公开(公告)日：1997-10-07

    申请号：US372768

    申请日：1995-01-13

    申请人： Takanori Fujii ,  Takeshi Sano ,  Masayuki Fujita ,  Yuji Hamada ,  Kosuke Takeuchi ,  Kenichi Shibata

    发明人： Takanori Fujii ,  Takeshi Sano ,  Masayuki Fujita ,  Yuji Hamada ,  Kosuke Takeuchi ,  Kenichi Shibata

    IPC分类号： H05B33/26 ,  C09K11/06 ,  H01L51/50 ,  H05B33/12 ,  H05B33/14 ,  B32B7/02 ,  H05B33/02

    CPC分类号： H01L51/5052 ,  H01L51/5048 ,  H01L51/5088 ,  H05B33/14 ,  Y10S428/917 ,  Y10T428/24942 ,  Y10T428/31678

    摘要： Organic electroluminescent elements capable of operating at a low driving voltage, leading to saving of electric power and operating cost for a driving circuit. In an organic electroluminescent element in which a hole transport layer and a luminous layer are formed between a hole injecting electrode layer and an electron injecting electrode layer which are oppositely arranged in a pair and in which the hole transport layer is overlaid on the hole injecting electrode layer, the hole transport layer is doped with a hole injection material at least at a region near the interface between the hole transport layer and a hole injecting electrode. The hole injection material has an ionization potential which is lower than that of the material of the hole transport layer and higher than that of the material of the hole injecting electrode layer.

    摘要翻译： 能够以低驱动电压工作的有机电致发光元件，导致电力的节省和驱动电路的运行成本。 在空穴注入电极层和电子注入电极层之间形成空穴传输层和发光层的有机电致发光元件中，空穴注入电极层和电子注入电极层相对配置成一对，空穴传输层重叠在空穴注入电极 至少在空穴传输层和空穴注入电极之间的界面附近的区域掺杂空穴注入材料。 空穴注入材料的电离电位低于空穴传输层的材料的离子化电位，高于空穴注入电极层的材料。

    Organic electroluminescent elements
    6.
    发明授权
    Organic electroluminescent elements 失效
    有机电致发光元件

    公开(公告)号：US5601903A

    公开(公告)日：1997-02-11

    申请号：US295548

    申请日：1994-08-25

    申请人： Takanori Fujii ,  Takeshi Sano ,  Masayuki Fujita ,  Yuji Hamada ,  Kenichi Shibata

    发明人： Takanori Fujii ,  Takeshi Sano ,  Masayuki Fujita ,  Yuji Hamada ,  Kenichi Shibata

    IPC分类号： C09K11/06 ,  H01L51/50 ,  H05B33/12 ,  H05B33/14 ,  H05B33/22 ,  B32B7/02 ,  H05B33/02

    CPC分类号： H01L51/5052 ,  H01L51/5012 ,  H05B33/12 ,  H05B33/14 ,  Y10S428/917 ,  Y10T428/24942 ,  Y10T428/31678

    摘要： An organic EL element that exhibits excellent durability by reducing the amount of accumulated carriers and curbing degradation by heat generated while the organic EL element is driven. The organic EL element comprises a pair of a hole injecting electrode and an electron injecting electrode sandwiching an organic luminous layer and an organic carrier transport layer placed one on top of the other to have a boundary therebetween, characterized in that either the organic luminous layer or the organic carrier transport layer, whichever is placed closer to the hole injecting electrode, is doped with a first organic material, the first organic material being made of at least one substance, a minimum level of a conducting band of the first organic material being lower than a minimum level of a conducting band of a material forming the layer to be doped with the first organic material, and the other layer which is placed closer to the electron injecting electrode is doped with a second organic material, the second organic material being made of at least one substance, a maximum level of a valence band of the second organic material being higher than a maximum level of a valence band of the other layer to be doped with the second organic material.

    摘要翻译： 一种有机EL元件，其通过在有机EL元件被驱动的同时通过减少积聚的载流子的量和抑制产生的热而显示优异的耐久性。 有机EL元件包括一对空穴注入电极和夹着有机发光层的电子注入电极和一个放置在另一个之间的有机载流子传输层，其间具有边界，其特征在于，有机发光层或 有机载体传输层（以更靠近空穴注入电极的位置为准）掺杂有第一有机材料，第一有机材料由至少一种物质制成，第一有机材料的导带的最小水平较低 比形成要掺杂第一有机材料的层的材料的导电带的最小电平，并且放置得更靠近电子注入电极的另一层被掺杂有第二有机材料，第二有机材料制成 的至少一种物质，所述第二有机材料的价带的最大含量高于一个最大值 另一层的nce带被掺杂第二有机材料。

    Organic electroluminescent device
    10.
    发明授权
    Organic electroluminescent device 失效
    有机电致发光器件

    公开(公告)号：US5693428A

    公开(公告)日：1997-12-02

    申请号：US596415

    申请日：1996-02-02

    申请人： Takanori Fujii ,  Takeshi Sano ,  Yuji Hamada ,  Kousuke Takeuchi ,  Kenichi Shibata

    发明人： Takanori Fujii ,  Takeshi Sano ,  Yuji Hamada ,  Kousuke Takeuchi ,  Kenichi Shibata

    IPC分类号： H05B33/14 ,  H05B33/00

    CPC分类号： H01L27/3239 ,  H05B33/14 ,  Y10S428/917

    摘要： In an organic electroluminescent device according to the present invention, at least a carrier transporting layer and a luminescent layer which use an organic material are provided between a hole injection electrode and an electron injection electrode, wherein a luminescent portion having a luminescent peak wavelength different from a luminescent peak wavelength in the luminescent layer is partially provided in such a manner that it is laminated on the luminescent layer, or at least a hole transporting layer having luminous characteristics and an electron transporting layer having luminous characteristics which respectively contain organic materials emitting fluorescence in different colors in a visible region are provided between the hole injection electrode and the electron injection electrode, wherein a hole transporting portion having non-luminous characteristics is partially provided between the hole transporting layer having luminous characteristics and the electron transporting layer having luminous characteristics when the hole transporting layer having luminous characteristics emits light, while an electron transporting portion having non-luminous characteristics is partially provided between the electron transporting layer having luminous characteristics and the hole transporting layer having luminous characteristics when the electron transporting layer having luminous characteristics emits light.

    摘要翻译： 在根据本发明的有机电致发光器件中，在空穴注入电极和电子注入电极之间至少设置使用有机材料的载流子传输层和发光层，其中发光峰值波长不同于 发光层中的发光峰值波长部分地设置成层叠在发光层上，或至少具有发光特性的空穴传输层和具有发光特性的电子传输层的方式分别包含发射荧光的有机材料 在空穴注入电极和电子注入电极之间设置可见区域的不同颜色，其中具有发光特性的空穴传输层和电子传输部分之间部分设置具有非发光特性的空穴传输部分 当具有发光特性的空穴传输层发光时具有发光特性的层，而具有非发光特性的电子传输部分部分地设置在具有发光特性的电子传输层和具有发光特性的空穴传输层之间，当电子传输层具有 发光特性发光。