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    Organic electroluminescent devices
    104.
    发明授权
    Organic electroluminescent devices 有权

    公开(公告)号：US09735368B2

    公开(公告)日：2017-08-15

    申请号：US13932595

    申请日：2013-07-01

    申请人： UDC Ireland Limited

    发明人： Kuniyuki Kaminaga ,  Wataru Sotoyama ,  Masaru Kinoshita ,  Daisuke Inoue

    IPC分类号： H01L51/50 ,  H01L51/00 ,  C09K11/06 ,  H05B33/14

    CPC分类号： H01L51/0052 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1014 ,  H01L51/0058 ,  H01L51/006 ,  H01L51/0073 ,  H01L51/5012 ,  H05B33/14

    摘要： An organic electroluminescent element that includes a light-emitting layer composed of a light-emitting composition containing at least one type of host material and at least one type of light-emitting material is provided. The host material is a fluorescent anthracene derivative, which fluoresces blue light under DC current with a current density of 25 mA/cm2. If λ (nm) is taken to be the shortest wavelength of all the wavelengths at which the intensity of PL emission of a film composed only of the aforementioned host material is one-half the maximum emission intensity, then the intensity of PL emission at the aforementioned wavelength λ of a film composed of the aforementioned light-emitting composition is no more than 1/10 the maximum emission intensity of PL emission of the film composed of the aforementioned light-emitting composition, and the PL emission of the film composed of the aforementioned light-emitting composition satisfies CIE y≦0.08.

    Organic electroluminescent element
    108.
    发明授权
    Organic electroluminescent element 有权
    有机电致发光元件

    公开(公告)号：US09412964B2

    公开(公告)日：2016-08-09

    申请号：US13914540

    申请日：2013-06-10

    申请人： UDC Ireland Limited

    发明人： Wataru Sotoyama ,  Daisuke Inoue

    IPC分类号： H01L51/50 ,  H01L51/00

    CPC分类号： H01L51/5092 ,  H01L51/0058 ,  H01L51/006 ,  H01L51/0081 ,  H01L51/0085 ,  H01L51/5004 ,  H01L51/5064 ,  H01L51/5088

    摘要： [It is an object] to provide an organic electroluminescent element with which the initial durability of the element can be greatly improved while maintaining the efficiency of the element at a high level. This is an organic electroluminescent element having an anode, a hole injection layer, a first hole transport layer, a second hole transport layer, a light-emitting layer, and a cathode, in this order, with this organic electroluminescent element being such that the aforementioned hole injection layer includes a material for which the energy of the lowest unoccupied molecular orbital (LUMO) is less than −4.0 eV and also such that the energy E1(LUMO) of the LUMO of the material included in the aforementioned first hole transport layer and the energy E2(LUMO) of the LUMO of the material included in the aforementioned second hole transport layer satisfy [the inequality] E1(LUMO)>E2(LUMO).

    摘要翻译： 本发明是提供一种有机电致发光元件，通过该有机电致发光元件可以极大地提高元件的初始耐久性，同时将元件的效率保持在高水平。 这是一种具有阳极，空穴注入层，第一空穴传输层，第二空穴传输层，发光层和阴极的有机电致发光元件，该有机电致发光元件使得 上述空穴注入层包括最低未占分子轨道（LUMO）的能量小于-4.0eV的材料，并且还使得包含在上述第一空穴传输层中的材料的LUMO的能量E1（LUMO） 并且包含在上述第二空穴传输层中的材料的LUMO的能量E2（LUMO）满足[不等式] E1（LUMO）> E2（LUMO）。

    Organic electroluminescence device
    109.
    发明授权
    Organic electroluminescence device 有权
    有机电致发光器件

    公开(公告)号：US09340728B2

    公开(公告)日：2016-05-17

    申请号：US13387847

    申请日：2010-07-29

    申请人： Toshihiro Ise ,  Tetsu Kitamura ,  Toru Watanabe ,  Akira Takeda ,  Keiju Tonosaki

    发明人： Toshihiro Ise ,  Tetsu Kitamura ,  Toru Watanabe ,  Akira Takeda ,  Keiju Tonosaki

    IPC分类号： H01L51/50 ,  C09K11/06 ,  H05B33/14 ,  H05B33/20 ,  H01L51/00

    CPC分类号： C09K11/06 ,  C09K2211/1029 ,  C09K2211/1044 ,  C09K2211/1059 ,  C09K2211/185 ,  H01L51/0067 ,  H01L51/0072 ,  H01L51/0085 ,  H01L51/0087 ,  H01L51/5012 ,  H05B33/14 ,  H05B33/20

    摘要： As an organic electroluminescence device that has an excellent emission characteristic, suppresses a change in chromaticity when driving at a high temperature and has excellent durability, the organic electroluminescence device includes on a substrate a pair of electrodes and a light emitting layer disposed between the electrodes, in which the light emitting layer contains a compound represented by the following Formula (1) and a specific metal complex is provided. (Cz)p-L-(A)q  (1) (In Formula (1), Cz represents a substituted or unsubstituted arylcarbazolyl group or a substituted or unsubstituted carbazolylaryl group. L represents a single bond, a substituted or unsubstituted arylene group, a substituted or unsubstituted cycloalkylene group or a substituted or unsubstituted aromatic heterocyclic ring. A is a substituted or unsubstituted nitrogen-containing aromatic heterocyclic six-membered ring, and each of p and q independently represent an integer of 1 to 6.)

    摘要翻译： 作为具有优异的发光特性的有机电致发光元件，抑制高温驱动时的色度变化，耐久性优异，有机电致发光元件在基板上具有一对电极和位于电极之间的发光层， 其中发光层含有由下式（1）表示的化合物和特定的金属络合物。 （Cz）pL-（A）q（1）（在式（1）中，Cz表示取代或未取代的芳基咔唑基或取代或未取代的咔唑基芳基，L表示单键，取代或未取代的亚芳基， 或未取代的环亚烷基或取代或未取代的芳族杂环，A为取代或未取代的含氮芳香族杂环六元环，p和q各自独立地表示1〜6的整数。