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    LIGHT EMITTING ELEMENT AND LIGHT EMITTING DEVICE USING THE SAME
    1.
    发明申请
    LIGHT EMITTING ELEMENT AND LIGHT EMITTING DEVICE USING THE SAME 审中-公开
    发光元件和使用该发光元件的发光元件

    公开(公告)号：US20150035000A1

    公开(公告)日：2015-02-05

    申请号：US14521695

    申请日：2014-10-23

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Daisuke KUMAKI ,  Satoshi SEO

    IPC: H01L33/00 ,  H01L33/42 ,  H01L27/15

    CPC classification number: H01L33/0008 ,  H01L27/15 ,  H01L27/3244 ,  H01L33/00 ,  H01L33/42 ,  H01L33/60 ,  H01L51/0081 ,  H01L51/5052 ,  H01L51/506 ,  H01L51/5068 ,  H01L51/5265 ,  H01L51/5296 ,  H01L2251/558

    Abstract: An object of the present invention is to provide a light emitting element having slight increase in driving voltage with accumulation of light emitting time. Another object of the invention is to provide a light emitting element having slight increase in resistance value with increase in film thickness. A light emitting element of the invention includes a first layer for generating holes, a second layer for generating electrons and a third layer comprising a light emitting substance between first and second electrodes. The first and third layers are in contact with the first and second electrodes, respectively. The second and third layers are connected to each other so as to inject electrons generated in the second layer into the third layer when applying the voltage to the light emitting element such that a potential of the second electrode is higher than that of the first electrode.

    Abstract translation: 本发明的目的是提供一种随着发光时间累积而具有轻微的驱动电压增加的发光元件。 本发明的另一个目的是提供一种随着膜厚度的增加而电阻值略有增加的发光元件。 本发明的发光元件包括用于产生空穴的第一层，用于产生电子的第二层和在第一和第二电极之间包含发光物质的第三层。 第一和第三层分别与第一和第二电极接触。 第二层和第三层彼此连接，以便在将电压施加到发光元件时将第二层中产生的电子注入第三层，使得第二电极的电位高于第一电极的电位。

    LIGHT-EMITTING ELEMENT
    2.
    发明申请
    LIGHT-EMITTING ELEMENT 审中-公开

    公开(公告)号：US20170133623A1

    公开(公告)日：2017-05-11

    申请号：US15413691

    申请日：2017-01-24

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Daisuke KUMAKI ,  Satoshi SEO

    IPC: H01L51/52 ,  H01L51/50

    CPC classification number: H01L51/5234 ,  H01L51/5052 ,  H01L51/5056 ,  H01L51/5068 ,  H01L51/5072 ,  H01L51/5206

    Abstract: In the present invention, a light-emitting element operating at low driving voltage, consuming low power, emitting light with good color purity and manufactured in high yields can be obtained. A light-emitting element is disclosed with a configuration composed of a fist layer containing a light-emitting material, a second layer, a third layer are formed sequentially over an anode to be interposed between the anode and a cathode in such a way that the third layer is formed to be in contact with the cathode. The second layer is made from n-type semiconductor, a mixture including that, or a mixture of an organic compound having a carrier transporting property and a material having a high electron donor property. The third layer is made from p-type semiconductor, a mixture including that, or a mixture of an organic compound having a carrier transporting property and a material having a high electron acceptor property.

    LIGHT EMITTING DEVICE
    4.
    发明申请
    LIGHT EMITTING DEVICE 有权
    发光装置

    公开(公告)号：US20130214307A1

    公开(公告)日：2013-08-22

    申请号：US13852015

    申请日：2013-03-28

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Satoshi SEO ,  Daisuke KUMAKI ,  Hisao IKEDA ,  Junichiro SAKATA

    IPC: H01L27/15

    CPC classification number: H01L27/156 ,  H01L27/322 ,  H01L27/3244 ,  H01L51/0059 ,  H01L51/0071 ,  H01L51/0081 ,  H01L51/5088 ,  H01L2251/5315 ,  H01L2251/558

    Abstract: Light-emitting elements have a problem that their light-extraction efficiency is low due to scattered light or reflected light inside the light-emitting elements. The light-extraction efficiency of the light-emitting elements needs to be enhanced by a new method. According to the present invention, a light-emitting element includes a first layer generating holes, a second layer including a light-emitting layer for each emission color and a third layer generating electrons between an anode and a cathode, and the thickness of the first layer is different depending on each layer including the light-emitting layer for each emission color. A layer in which an organic compound and a metal oxide are mixed is used as the first layer, and thus, the driving voltage is not increased even when the thickness is increased, which is preferable.

    Abstract translation: 发光元件具有由于发光元件内的散射光或反射光而导致其光提取效率低的问题。 需要通过新的方法来增强发光元件的光提取效率。 根据本发明，发光元件包括第一层产生孔，包括用于每种发射颜色的发光层的第二层和在阳极和阴极之间产生电子的第三层，以及第一层 层根据每个发射颜色的包含发光层的各层而不同。 使用其中混合有机化合物和金属氧化物的层作为第一层，因此即使当厚度增加时驱动电压也不会增加，这是优选的。

    COMPOSITE MATERIAL, LIGHT EMITTING ELEMENT AND LIGHT EMITTING DEVICE
    6.
    发明申请
    COMPOSITE MATERIAL, LIGHT EMITTING ELEMENT AND LIGHT EMITTING DEVICE 有权
    复合材料，发光元件和发光装置

    公开(公告)号：US20130119365A1

    公开(公告)日：2013-05-16

    申请号：US13735286

    申请日：2013-01-07

    Applicant: Semiconductor Energy Laboratory Co., Ltd.

    Inventor： Yuji IWAKI ,  Satoshi SEO ,  Daisuke KUMAKI

    IPC: H01L51/50

    CPC classification number: H01L51/5004 ,  H01L51/0032 ,  H01L51/0051 ,  H01L51/0052 ,  H01L51/0058 ,  H01L51/0072 ,  H01L51/5068 ,  H01L51/5088 ,  H01L51/5278 ,  H01L2251/303 ,  Y10S428/917

    Abstract: An object of the present invention is to provide a composite material formed of an organic compound and an inorganic compound, and has an excellent carrier transporting property, an excellent carrier injecting property to the organic compound, as well as excellent transparency. A composite material of the present invention for achieving the above object is a composite material of an organic compound represented in the general formula below, and an inorganic compound. For the inorganic compound, an oxide of a transition metal, preferably an oxide of a metal belonging to groups 4 to 8 of the periodic table, in particular vanadium oxide, tantalum oxide, molybdenum oxide, tungsten oxide, rhenium oxide, and ruthenium oxide, can be used.

    Abstract translation: 本发明的目的是提供一种由有机化合物和无机化合物形成的复合材料，具有优异的载流子传输性，对有机化合物具有良好的载流子注入性以及优异的透明性。 用于实现上述目的的本发明的复合材料是下述通式中表示的有机化合物和无机化合物的复合材料。 对于无机化合物，过渡金属的氧化物，优选属于周期表第4〜8族的金属的氧化物，特别是氧化钒，氧化钽，氧化钼，氧化钨，氧化铼和氧化钌， 可以使用。

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