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    Light-emitting element, light-emitting device, and electronic appliance
    1.
    发明授权
    Light-emitting element, light-emitting device, and electronic appliance 有权
    发光元件，发光装置和电子设备

    公开(公告)号：US09224968B2

    公开(公告)日：2015-12-29

    申请号：US13552899

    申请日：2012-07-19

    申请人： Yuji Iwaki ,  Junichiro Sakata ,  Hisao Ikeda ,  Tomoya Aoyama ,  Takaaki Nagata ,  Takahiro Kawakami ,  Satoshi Seo ,  Ryoji Nomura

    发明人： Yuji Iwaki ,  Junichiro Sakata ,  Hisao Ikeda ,  Tomoya Aoyama ,  Takaaki Nagata ,  Takahiro Kawakami ,  Satoshi Seo ,  Ryoji Nomura

    IPC分类号： H01L51/50 ,  H01L51/00

    CPC分类号： H01L51/5048 ,  H01L51/0059 ,  H01L51/0062 ,  H01L51/0072 ,  H01L51/0081

    摘要： An object of the present invention is to provide a light-emitting element with high luminous efficiency, and a light-emitting element of low-voltage driving. Another object is to provide a light-emitting device with low power consumption by using the light-emitting element. Another object is to provide an electronic appliance with low power consumption by using the light-emitting device in a display portion. A light-emitting element includes, between a pair of electrodes, a layer containing a composite material of a first organic compound and an inorganic compound and a layer containing a second organic compound being in contact with the layer containing the composite material, wherein the second organic compound does not have a peak of an absorption spectrum in a wavelength region of 450 to 800 nm if the second organic compound is compounded with the inorganic compound.

    摘要翻译： 本发明的目的是提供一种发光效率高的发光元件和低电压驱动用发光元件。 另一个目的是通过使用发光元件来提供具有低功耗的发光装置。 另一个目的是通过在显示部分中使用发光装置来提供具有低功耗的电子设备。 发光元件在一对电极之间包括含有第一有机化合物和无机化合物的复合材料的层和包含与含有复合材料的层接触的第二有机化合物的层，其中第二 如果第二有机化合物与无机化合物混合，有机化合物在450-800nm的波长区域中不具有吸收光谱的峰值。

    Light emitting device and electronic appliance using the same
    7.
    发明授权
    Light emitting device and electronic appliance using the same 有权
    发光装置及使用其的电子设备

    公开(公告)号：US08252434B2

    公开(公告)日：2012-08-28

    申请号：US13185867

    申请日：2011-07-19

    申请人： Yuji Iwaki ,  Satoshi Seo ,  Takahiro Kawakami ,  Hisao Ikeda ,  Junichiro Sakata ,  Tomoya Aoyama

    发明人： Yuji Iwaki ,  Satoshi Seo ,  Takahiro Kawakami ,  Hisao Ikeda ,  Junichiro Sakata ,  Tomoya Aoyama

    IPC分类号： H05B33/12

    CPC分类号： H01L51/0052 ,  H01L51/0071 ,  H01L51/0081 ,  H01L51/5052 ,  H01L51/5088 ,  H05B33/22 ,  Y10S428/917

    摘要： A light emitting device comprises a pair of electrodes and a mixed layer provided between the pair of electrodes. The mixed layer contains an organic compound which contains no nitrogen atoms, i.e., an organic compound which dose not have an arylamine skeleton, and a metal oxide. As the organic compound, an aromatic hydrocarbon having an anthracene skeleton is preferably used. As such an aromatic hydrocarbon, t-BuDNA, DPAnth, DPPA, DNA, DMNA, t-BuDBA, and the like are listed. As the metal oxide, molybdenum oxide, vanadium oxide, ruthenium oxide, rhenium oxide, and the like are preferably used. Further, the mixed layer preferably shows absorbance per 1 μm of 1 or less or does not show a distinct absorption peak in a spectrum of 450 to 650 nm when an absorption spectrum is measured.

    摘要翻译： 发光器件包括一对电极和设置在该对电极之间的混合层。 混合层含有不含氮原子的有机化合物即不具有芳胺骨架的有机化合物和金属氧化物。 作为有机化合物，优选使用具有蒽骨架的芳香族烃。 作为这样的芳烃，列举了t-BuDNA，DPAnth，DPPA，DNA，DMNA，t-BuDBA等。 作为金属氧化物，优选使用氧化钼，氧化钒，氧化钌，氧化铼等。 此外，当测量吸收光谱时，混合层优选显示每1μm的吸光度为1或更小，或者在450至650nm的光谱中不显示不同的吸收峰。

    Light-emitting element and display device
    8.
    发明授权
    Light-emitting element and display device 有权
    发光元件和显示装置

    公开(公告)号：US08212280B2

    公开(公告)日：2012-07-03

    申请号：US12706012

    申请日：2010-02-16

    申请人： Hisao Ikeda ,  Hiroki Ohara ,  Makoto Hosoba ,  Junichiro Sakata ,  Shunichi Ito

    发明人： Hisao Ikeda ,  Hiroki Ohara ,  Makoto Hosoba ,  Junichiro Sakata ,  Shunichi Ito

    IPC分类号： H01L33/00

    CPC分类号： H01L51/5253 ,  G09G3/3291 ,  G09G2300/0842 ,  G09G2310/0251 ,  G09G2320/043 ,  H01L27/3211 ,  H01L27/322 ,  H01L27/3246 ,  H01L27/3272 ,  H01L51/5012 ,  H01L51/5203 ,  H01L51/5206 ,  H01L51/5234 ,  H01L51/5237 ,  H01L51/5246 ,  H01L51/525 ,  H01L51/5262 ,  H01L51/5275 ,  H01L51/5284 ,  H01L2251/301 ,  H01L2251/5315 ,  H01L2251/5323 ,  H01L2251/5338 ,  H01L2251/5361

    摘要： There has been a problem that difference in refractive index between an opposite substrate or a moisture barrier layer (passivation film) such as SiN provided thereover, and air is maintained large, and light extraction efficiency is low. Further, there has been a problem that peeling or cracking due to the moisture barrier layer is easily generated, which leads to deteriorate the reliability and lifetime of a light-emitting element. According to the present invention, a light-emitting element comprises a pixel electrode, an electroluminescent layer, a transparent electrode, a passivation film, a stress relieving layer, and a low refractive index layer, all of which are stacked sequentially. The stress relieving layer serves to prevent peeling of the passivation film. The low refractive index layer serves to reduce reflectivity of light generated in the electroluminescent layer in emitting to air. Therefore, a light-emitting element with high reliability and long lifetime and a display device using the light-emitting element can be provided.

    摘要翻译： 存在如下问题：相对基板或其间设置的诸如SiN之类的防潮层（钝化膜）之间的折射率差异大，空气保持较大，光提取效率低。 此外，存在容易产生由于防潮层而产生剥离或破裂的问题，导致发光元件的可靠性和寿命恶化。 根据本发明，发光元件包括依次堆叠的像素电极，电致发光层，透明电极，钝化膜，应力消除层和低折射率层。 应力消除层用于防止钝化膜的剥离。 低折射率层用于降低发射到空气中的电致发光层中产生的光的反射率。 因此，可以提供具有高可靠性和长寿命的发光元件和使用该发光元件的显示装置。

    Light emitting element and display device using the same
    9.
    发明授权
    Light emitting element and display device using the same 有权
    发光元件及使用其的显示装置

    公开(公告)号：US08169139B2

    公开(公告)日：2012-05-01

    申请号：US12510057

    申请日：2009-07-27

    申请人： Hisao Ikeda ,  Junichiro Sakata ,  Daisuke Kumaki ,  Satoshi Seo

    发明人： Hisao Ikeda ,  Junichiro Sakata ,  Daisuke Kumaki ,  Satoshi Seo

    IPC分类号： H01J1/62 ,  H01J63/04

    CPC分类号： H01L51/5092 ,  H01L27/3244 ,  H01L51/007 ,  H01L51/0081 ,  H01L51/5052 ,  H01L51/5088 ,  H01L2251/5323

    摘要： An object of the invention is to provide a highly reliable light emitting element with low drive voltage and longer life than a conventional light emitting element, and a display device using the light emitting element. A light emitting element according to the invention comprises a plurality of layers which is interposed between a pair of electrodes, in which at least one of the plurality of layers is formed of a layer containing a light emitting material, and the layer containing a light emitting material is interposed between a layer containing an oxide semiconductor and/or metal oxide and a material having a higher hole transporting property than an electron transporting property, and a layer containing an oxide semiconductor and/or metal oxide, a material having a higher electron transporting property than a hole transporting property and a material which can donate electrons to the material having a higher electron transporting property than a hole transporting property.

    摘要翻译： 本发明的目的是提供一种具有比传统发光元件低的驱动电压和更长寿命的高度可靠的发光元件，以及使用该发光元件的显示装置。 根据本发明的发光元件包括介于一对电极之间的多个层，其中多个层中的至少一个由包含发光材料的层形成，并且该层包含发光 材料插入在包含氧化物半导体和/或金属氧化物的层和具有比电子传输性能更高的空穴传输性质的材料之间，以及含有氧化物半导体和/或金属氧化物的层，具有较高电子传输的材料 特性以及可以向具有比空穴传输性更高的电子传输性能的材料提供电子的材料。

    Light emitting device having metal oxide layer and color filter
    10.
    发明授权
    Light emitting device having metal oxide layer and color filter 有权
    具有金属氧化物层和滤色器的发光器件

    公开(公告)号：US08138667B2

    公开(公告)日：2012-03-20

    申请号：US12434777

    申请日：2009-05-04

    申请人： Shunpei Yamazaki ,  Junichiro Sakata ,  Hisao Ikeda ,  Yasuo Nakamura ,  Keiko Saito

    发明人： Shunpei Yamazaki ,  Junichiro Sakata ,  Hisao Ikeda ,  Yasuo Nakamura ,  Keiko Saito

    IPC分类号： H01J1/62 ,  H01J63/04

    CPC分类号： H01L27/3272 ,  H01L27/1218 ,  H01L27/1222 ,  H01L27/3211 ,  H01L27/322 ,  H01L27/3244 ,  H01L27/3248 ,  H01L33/08 ,  H01L33/36 ,  H01L33/50 ,  H01L33/56 ,  H01L33/58 ,  H01L51/5052 ,  H01L51/5088 ,  H01L51/5092 ,  H01L51/5203 ,  H01L51/5212 ,  H01L51/5228 ,  H01L51/5237 ,  H01L51/5246 ,  H01L51/5253 ,  H01L51/5259 ,  H01L51/5262 ,  H01L51/5284 ,  H01L51/56 ,  H01L2251/5315

    摘要： It is an object of the present invention to provide a light-emitting device that is high in color purity of light and is high in light extraction efficiency, where sputtering is used to form an electrode on an electroluminescent layer without damage to a layer including an organic material.The present invention provides a light-emitting device comprising a first light-emitting element that emits red light, a second light-emitting element that emits green light, a third light-emitting element that emits blue light, and a color filter, where the color filter comprises a first coloring layer that selectively transmits red light, a second coloring layer that selectively transmits green light, and a third coloring layer that selectively transmits blue light, the first to third light-emitting elements respectively correspond to the first to third coloring layers, wherein each of the first to third light-emitting elements has a first electrode, an electroluminescent layer formed on the first electrode, and a second electrode formed on the electroluminescent layer, and wherein the electroluminescent layer includes a layer in contact with the second electrode, and a metal oxide or a benzoxazole derivative is included in the layer in contact with the second electrode.

    摘要翻译： 本发明的一个目的是提供一种光的色纯度高，光提取效率高的发光装置，其中使用溅射法在电致发光层上形成电极而不会损伤包括 有机材料。 本发明提供一种包括发射红光的第一发光元件，发出绿光的第二发光元件，发出蓝光的第三发光元件和滤色器的发光器件，其中 滤色器包括选择性地透射红光的第一着色层，选择性地透射绿光的第二着色层和选择性地透射蓝光的第三着色层，第一至第三发光元件分别对应于第一至第三着色层 层，其中第一至第三发光元件中的每一个具有第一电极，形成在第一电极上的电致发光层和形成在电致发光层上的第二电极，并且其中电致发光层包括与第二电极接触的层 电极和与第二电极接触的层中包含金属氧化物或苯并恶唑衍生物。