公开(公告)号：US08541114B2

公开(公告)日：2013-09-24

申请号：US13568155

申请日：2012-08-07

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1个或更少的1个吸光度，或者在450-650nm的光谱中不显示不同的吸收峰。

公开(公告)号：US20120261659A1

公开(公告)日：2012-10-18

申请号：US13458615

申请日：2012-04-27

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： H01L33/26

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

摘要： 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： 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。

公开(公告)号：US20120205701A1

公开(公告)日：2012-08-16

申请号：US13369797

申请日：2012-02-09

申请人： Toshiki Sasaki ,  Nozomu Sugisawa ,  Hisao Ikeda ,  Satoshi Seo ,  Nobuharu Ohsawa ,  Shunpei Yamazaki

发明人： Toshiki Sasaki ,  Nozomu Sugisawa ,  Hisao Ikeda ,  Satoshi Seo ,  Nobuharu Ohsawa ,  Shunpei Yamazaki

IPC分类号： H01L33/48

CPC分类号： H01L51/5218 ,  H01L51/5036 ,  H01L51/5265

摘要： A light-emitting element disclosed includes a first electrode layer; a second electrode layer which transmits light; and a light-emitting layer interposed between the first electrode layer and the second electrode layer. The first electrode layer includes a first conductive layer which is able to reflect light, a second conductive layer provided over the first conductive layer and including titanium, and a third conductive layer which transmits light and contains a metal oxide having work function higher than that of a material of the first conductive layer.

摘要翻译： 所公开的发光元件包括第一电极层; 透光的第二电极层; 以及插入在第一电极层和第二电极层之间的发光层。 第一电极层包括能够反射光的第一导电层，设置在第一导电层上并包括钛的第二导电层，以及透射光并包含具有比第二导电层的功函数高的功函数的金属氧化物的第三导电层 第一导电层的材料。

公开(公告)号：US08188491B2

公开(公告)日：2012-05-29

申请号：US13009111

申请日：2011-01-19

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

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

IPC分类号： H01L35/24

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

摘要： 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.

摘要翻译： 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。

公开(公告)号：US20120061708A1

公开(公告)日：2012-03-15

申请号：US13232671

申请日：2011-09-14

申请人： Hisao Ikeda ,  Yutaka Uchida ,  Satoshi Seo

发明人： Hisao Ikeda ,  Yutaka Uchida ,  Satoshi Seo

IPC分类号： H01L33/58

CPC分类号： H01L51/5275 ,  H01L51/0052 ,  H01L51/0059 ,  H01L51/0072 ,  H01L51/0085

摘要： Provided is a light-emitting device having a structure in which a high refractive index component is provided between a solid light-emitting element and air, has an uneven structure on a surface in contact with air, and can be reused. The light-emitting device includes a substrate having a refractive index of 1.6 or higher and a light-transmitting property, a solid light-emitting element including a light-emitting region having a refractive index of 1.6 or higher on one surface of the substrate, and a component having a refractive index of 1.6 or higher and a light-transmitting property on the other surface of the substrate, wherein the component includes an uneven structure on a surface in contact with air and is connected to the substrate via a liquid having a refractive index of 1.6 or higher and a light-transmitting property.

摘要翻译： 提供一种发光装置，其具有在固体发光元件和空气之间提供高折射率分量的结构，在与空气接触的表面上具有不均匀的结构，并且可以重复使用。 发光装置包括折射率为1.6以上且透光性的基板，在基板的一个表面上具有折射率为1.6以上的发光区域的固体发光元件， 以及折射率为1.6以上，在基板的另一面的透光性的成分，其中，所述成分在与空气接触的表面上具有不均匀结构，并且经由具有 折射率为1.6以上，具有透光性。

公开(公告)号：US20110272690A1

公开(公告)日：2011-11-10

申请号：US13101572

申请日：2011-05-05

申请人： Daisuke Kumaki ,  Hisao Ikeda ,  Hiroko Abe ,  Satoshi Seo

发明人： Daisuke Kumaki ,  Hisao Ikeda ,  Hiroko Abe ,  Satoshi Seo

IPC分类号： H01L33/36 ,  H01L33/26

CPC分类号： H01L51/5237 ,  H01L27/3209 ,  H01L27/3241 ,  H01L27/3244 ,  H01L51/5048 ,  H01L51/506 ,  H01L51/5076 ,  H01L51/5278 ,  Y10S428/917 ,  Y10T428/24942

摘要： A light emitting element of the invention includes n pieces of light emitting layers (n is a natural number) between first and second electrodes. A first layer and a second layer are provided between the mth light emitting layer (m is a natural number of 1≦m≦n) and the m+1th light emitting layer. The first and second layers are contacted to each other. The first layer contain a substance that transports holes easily and a substance with an electron accepting property. The second layer contains a substance that transports electrons easily and a substance with an electron donating property. Molybdenum oxide is used as the substance with the electron accepting property.

摘要翻译： 本发明的发光元件在第一和第二电极之间包括n个发光层（n是自然数）。 在第m个发光层（m是1＆lt; nlE; m＆nlE; n）的自然数和第m + 1发光层之间设置第一层和第二层。 第一层和第二层彼此接触。 第一层含有容易传输孔的物质和具有电子接受性的物质。 第二层含有易于输送电子的物质和具有给电子性质的物质。 使用氧化钼作为具有电子接受性的物质。

公开(公告)号：US07898168B2

公开(公告)日：2011-03-01

申请号：US10967267

申请日：2004-10-19

申请人： Satoshi Seo ,  Hiroko Abe ,  Hisao Ikeda

发明人： Satoshi Seo ,  Hiroko Abe ,  Hisao Ikeda

IPC分类号： H05B33/00

CPC分类号： H01L51/5012 ,  H01L51/0059 ,  H01L51/0081 ,  Y10S428/917

摘要： A light-emitting element is disclosed with a light-emitting layer containing a host material added with a small amount of guest material, wherein color purity can be improved as well as reduced a driving voltage. Color purity can be improved as well as reduced a driving voltage especially in a light-emitting element added with a red light-emitting material as a guest material. A light-emitting layer is disclosed that includes a first host material, which is an organic compound having a hole transporting property; a second host material, which is an organic compound having a larger dipole moment than that of the first host material; and a guest material having an electron-withdrawing group.

摘要翻译： 公开了一种发光元件，其具有包含添加少量客体材料的主体材料的发光层，其中可以提高色纯度以及降低驱动电压。 可以提高色纯度，降低驱动电压，特别是在作为客体材料添加有红色发光材料的发光元件中。 公开了一种发光层，其包括具有空穴传输性的有机化合物的第一主体材料; 第二主体材料，其是具有比第一主体材料更大的偶极矩的有机化合物; 和具有吸电子基团的客体材料。

公开(公告)号：US07750560B2

公开(公告)日：2010-07-06

申请号：US10577472

申请日：2005-09-26

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

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

IPC分类号： H01J1/62 ,  H01J63/04

CPC分类号： H01L51/5048 ,  H01L51/0059 ,  H01L51/0081 ,  H01L51/5012

摘要： The present invention provides a light-emitting element sandwiching a composite layer in which an organic compound and an inorganic compound are mixed between a first electrode and a second electrode, where the composite layer includes a first layer including a first organic compound and a first inorganic compound that exhibits an electron accepting property to the first organic compound (serves as an electron acceptor), a second layer including a second organic compound and a second inorganic compound, and a third layer including a third organic compound and a third inorganic compound that exhibits an electron donating property to the third organic compound (serves as an electron acceptor).

摘要翻译： 本发明提供了一种夹着复合层的发光元件，其中有机化合物和无机化合物混合在第一电极和第二电极之间，其中复合层包括包含第一有机化合物和第一无机化合物的第一层 对第一有机化合物（用作电子受体）具有电子接受性的化合物，包含第二有机化合物和第二无机化合物的第二层，以及包含第三有机化合物和第三无机化合物的第三层， 向第三有机化合物（用作电子受体）的给电子性质。

公开(公告)号：US07714501B2

公开(公告)日：2010-05-11

申请号：US11284209

申请日：2005-11-21

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

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

IPC分类号： C09K11/06 ,  H01L51/54 ,  H05B33/14

CPC分类号： C09K11/06 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1029 ,  H01L51/0072 ,  H01L51/5092 ,  H05B33/14 ,  Y10S428/917

摘要： It is an object of the present invention to provide a light emitting element which can reduce defective operation due to crystallization of a compound. One of the light emitting elements of the present invention has a layer, which generates electrons, between a first electrode and a second electrode. The layer generating electrons includes a phenanthroline derivative represented by the general formula (1) and a metal oxide. The metal oxide shows an electron donating property to the phenanthroline derivative represented by the general formula (1). Herein, in the general formula (1), R1 to R5 individually represents an alkyl group having 1 to 4 carbon atoms or a halogen group, and further at least one of R1 to R5 represents a halogen group.

摘要翻译： 本发明的目的是提供一种可以减少由于化合物的结晶而导致的不良操作的发光元件。 本发明的发光元件之一在第一电极和第二电极之间具有产生电子的层。 产生电子的层包括由通式（1）表示的菲咯啉衍生物和金属氧化物。 金属氧化物显示出由通式（1）表示的菲咯啉衍生物的给电子性。 这里，在通式（1）中，R 1〜R 5分别表示碳原子数1〜4的烷基或卤素基，R 1〜R 5中的至少1个表示卤素基。

公开(公告)号：US20100035371A1

公开(公告)日：2010-02-11

申请号：US12536069

申请日：2009-08-05

申请人： Shunpei Yamazaki ,  Koichiro Tanaka ,  Hisao Ikeda ,  Satoshi Seo

发明人： Shunpei Yamazaki ,  Koichiro Tanaka ,  Hisao Ikeda ,  Satoshi Seo

IPC分类号： H01L21/26

CPC分类号： H01L51/0009 ,  C23C14/048 ,  C23C14/12 ,  C23C14/28 ,  H01L51/0013 ,  H01L51/56

摘要： By using a first substrate which has a light-transmitting property and whose first face is provided with a light-absorbing layer, a mixture including an organic compound and an inorganic material is irradiated with light having a wavelength, which is absorbed by the inorganic material to heat the mixture, and thereby a film of the organic compound included in the mixture is formed on the first face of the first substrate. Then, the first face of the first substrate and a deposition surface of a second substrate are arranged to be adjacent to or in contact with each other, irradiation with light having a wavelength, which is absorbed by the light-absorbing layer is conducted from a second face side of the first substrate, to heat the organic compound, and thereby at least part of the organic compound is formed as a film on the deposition surface of the second substrate.

摘要翻译： 通过使用具有透光性的第一基板，其第一面设置有光吸收层，将由有机化合物和无机材料构成的混合物照射由无机材料吸收的波长的光 加热混合物，由此在第一基板的第一面上形成包含在混合物中的有机化合物的膜。 然后，第一基板的第一面和第二基板的沉积表面被布置成彼此相邻或彼此接触，用由光吸收层吸收的具有波长的光的照射从 第一基板的第二面侧，以加热有机化合物，由此至少部分有机化合物在第二基板的沉积表面上形成为膜。