公开(公告)号：US20070182318A1

公开(公告)日：2007-08-09

申请号：US10593193

申请日：2005-05-17

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： H01L51/52

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 contains 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层发光层之间设置第一层和第二层（m为1 <= m <= N的自然数）和第M + 1层 >发光层。 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：US09905809B2

公开(公告)日：2018-02-27

申请号：US13205872

申请日：2011-08-09

申请人： Satoshi Seo ,  Takeshi Noda ,  Shunpei Yamazaki

发明人： Satoshi Seo ,  Takeshi Noda ,  Shunpei Yamazaki

IPC分类号： H01L33/60 ,  H01L51/52 ,  H01L51/50 ,  H01L27/32

CPC分类号： H01L51/5278 ,  H01L27/3211 ,  H01L27/3244 ,  H01L51/5044 ,  H01L51/5218 ,  H01L51/5265

摘要： It is an object of the invention to provide a light emitting device which can display a superior image in which luminescent color from each light emitting layer is beautifully displayed and power consumption is lowered in a light emitting element in which light emitting layers are stacked. One feature of the invention is that, in a light emitting element which comprises light emitting layers stacked between electrodes, each distance between each light emitting layer and an electrode is approximately oddly multiplied ¼ wavelength by controlling a thickness of a layer provided therebetween to enhance luminous output efficiency. Another feature of the invention is that a drive voltage is lowered using a high conductive material for the layer compared with a conventional element.

公开(公告)号：US09876187B2

公开(公告)日：2018-01-23

申请号：US12237042

申请日：2008-09-24

申请人： Satoko Shitagaki ,  Tsunenori Suzuki ,  Satoshi Seo

发明人： Satoko Shitagaki ,  Tsunenori Suzuki ,  Satoshi Seo

IPC分类号： H01J1/62 ,  H01L51/50

CPC分类号： H01L51/5048 ,  H01L2251/552

摘要： In a light-emitting element including an EL layer between a pair of electrodes, between an electrode functioning as an anode and a fourth layer having a light-emitting property (light-emitting layer), the EL layer includes at least a first layer having a hole-injecting property (hole-injecting layer), a second layer having a hole-transporting property (first hole-transporting layer), and a third layer having a hole-transporting property (second hole-transporting layer). The absolute value of the highest occupied molecular orbital level (HOMO level) of the second layer is larger than the absolute value of the highest occupied molecular orbital level (HOMO level) of each of the first layer and the third layer. With such a structure, the rate of transport of holes injected from the electrode functioning as an anode is reduced and emission efficiency of the light-emitting element is improved.

公开(公告)号：US09496505B2

公开(公告)日：2016-11-15

申请号：US13241694

申请日：2011-09-23

申请人： Hiromi Nowatari ,  Satoshi Seo ,  Harue Osaka ,  Takako Takasu

发明人： Hiromi Nowatari ,  Satoshi Seo ,  Harue Osaka ,  Takako Takasu

IPC分类号： H01L51/54 ,  C09K11/06 ,  H01L51/00 ,  H05B33/14 ,  H01L51/50

CPC分类号： H01L51/0074 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1088 ,  C09K2211/1092 ,  H01L51/0052 ,  H01L51/0072 ,  H01L51/0073 ,  H01L51/50 ,  H01L51/5048 ,  H01L2251/303 ,  H05B33/14

摘要： A composite material including an organic compound and an inorganic compound and having a high carrier-transport property is provided. A composite material having a high carrier-injection property to an organic compound is provided. A composite material in which light absorption due to charge transfer interaction is unlikely to occur is provided. A light-emitting element having high emission efficiency is provided by including the composite material. A light-emitting element having a low drive voltage is provided. A light-emitting element having a long lifetime is provided. A composite material including a heterocyclic compound having a dibenzothiophene skeleton or a dibenzofuran skeleton and an inorganic compound exhibiting an electron-accepting property with respect to the heterocyclic compound is provided.

摘要翻译： 提供了包含有机化合物和无机化合物并具有高载流子传输性能的复合材料。 提供了对有机化合物具有高载流子注入性能的复合材料。 提供了由于电荷转移相互作用而导致的光吸收不可能发生的复合材料。 通过包含复合材料提供具有高排放效率的发光元件。 提供具有低驱动电压的发光元件。 提供具有长寿命的发光元件。 提供了包含具有二苯并噻吩骨架或二苯并呋喃骨架的杂环化合物和相对于杂环化合物显示电子接受性的无机化合物的复合材料。

公开(公告)号：US09273079B2

公开(公告)日：2016-03-01

申请号：US13534497

申请日：2012-06-27

申请人： Hideko Inoue ,  Yui Yamada ,  Nobuharu Ohsawa ,  Satoshi Seo

发明人： Hideko Inoue ,  Yui Yamada ,  Nobuharu Ohsawa ,  Satoshi Seo

IPC分类号： H01L51/54 ,  C09K11/06 ,  C07F15/00 ,  H05B33/14 ,  H01L51/50 ,  H01L51/52 ,  H01L27/32 ,  H01L51/00

CPC分类号： C07F15/0033 ,  C09K11/06 ,  C09K2211/1059 ,  C09K2211/185 ,  H01L27/3206 ,  H01L51/0072 ,  H01L51/0074 ,  H01L51/0085 ,  H01L51/5016 ,  H01L51/5028 ,  H01L51/504 ,  H01L51/5265 ,  H01L51/5278 ,  H05B33/14

摘要： An organometallic complex emitting blue phosphorescence which can be manufactured inexpensively is provided. An organometallic complex in which nitrogen at the 1-position of a 5-aryl-4H-1,2,4-triazole derivative is coordinated to a Group 9 metal or a Group 10 metal, the aryl group is bonded to the Group 9 metal or the Group 10 metal, and the 5-aryl-4H-1,2,4-triazole derivative is a 3-aryl-5,6,7,8-tetrahydro-4H-[1,2,4]triazolo[4,3-a]pyridine derivative is provided. The organometallic complex emits green to blue phosphorescence and has a cost advantage.

摘要翻译： 提供可以廉价制造的发射蓝色磷光的有机金属配合物。 将5-芳基-4H-1,2,4-三唑衍生物的1-位上的氮与第9族金属或第10族金属配位的有机金属配合物，该芳基与第9族金属 或第10族金属，5-芳基-4H-1,2,4-三唑衍生物是3-芳基-5,6,7,8-四氢-4H- [1,2,4]三唑并[4 ，3-a]吡啶衍生物。 有机金属配合物发出绿色至蓝色的磷光，具有成本优势。

公开(公告)号：US09269906B2

公开(公告)日：2016-02-23

申请号：US12206252

申请日：2008-09-08

申请人： Tsunenori Suzuki ,  Satoko Shitagaki ,  Satoshi Seo

发明人： Tsunenori Suzuki ,  Satoko Shitagaki ,  Satoshi Seo

IPC分类号： H01L51/54 ,  H01L51/00 ,  H01L51/50

CPC分类号： H01L51/506 ,  H01L51/001 ,  H01L51/0031 ,  H01L51/0059 ,  H01L51/006 ,  H01L51/007 ,  H01L51/0072 ,  H01L51/0081 ,  H01L51/5012 ,  H01L51/5052 ,  H01L51/5076 ,  H01L2251/308

摘要： It is an object to provide a light-emitting element having long lifetime. A light-emitting element is provided, in which a light-emitting layer, a first layer, and a second layer are provided between a first electrode and a second electrode; the first layer is provided between the light-emitting layer and the first electrode; the second layer is provided between the light-emitting layer and the second electrode; the first layer is a layer for controlling the hole transport; the second layer is a layer for controlling the electron transport; and light emission is obtained from the light-emitting layer by applying voltage to the first electrode and the second electrode such that the potential of the first electrode is higher than that of the second electrode.

摘要翻译： 目的在于提供寿命长的发光元件。 提供一种发光元件，其中发光层，第一层和第二层设置在第一电极和第二电极之间; 第一层设置在发光层和第一电极之间; 第二层设置在发光层和第二电极之间; 第一层是用于控制空穴传输的层; 第二层是用于控制电子传输的层; 并且通过向第一电极和第二电极施加电压使得第一电极的电位高于第二电极的电位，从发光层获得发光。

公开(公告)号：US09099682B2

公开(公告)日：2015-08-04

申请号：US12874392

申请日：2010-09-02

申请人： Hiromi Nowatari ,  Satoshi Seo

发明人： Hiromi Nowatari ,  Satoshi Seo

IPC分类号： H01L51/54 ,  H01L51/52 ,  H01L27/32 ,  H01L51/00

CPC分类号： H01L51/0067 ,  H01L27/3209 ,  H01L51/001 ,  H01L51/0032 ,  H01L51/0053 ,  H01L51/006 ,  H01L51/0081 ,  H01L51/5004 ,  H01L51/504 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/5206 ,  H01L51/5221 ,  H01L51/5278

摘要： A light-emitting element is provided, in which n (n is a natural number of two or more) EL layers are provided between an anode and a cathode. Between the m-th (in is a natural number, 1≦m≦n−1) EL layer and the (m+1)-th EL layer, a first layer containing any of an alkali metal, an alkaline earth metal, a rare earth metal, an alkali metal compound, an alkaline earth metal compound, and a rare earth metal compound, a second layer containing a substance having high electron-transport properties in contact with the first layer, and a charge-generation layer containing a substance having high hole-transport properties and an acceptor substance in contact with the second layer are provided in this order over the anode. The charge-generation layer does not have a peak of an absorption spectrum in a visible light region.

摘要翻译： 提供了一种发光元件，其中n（n是两个或更多个的自然数）EL层设置在阳极和阴极之间。 在第m（in是自然数，1＆nlE; m＆nlE; n-1）EL层和第（m + 1）EL层之间，含有碱金属，碱土金属， 稀土金属，碱金属化合物，碱土金属化合物和稀土金属化合物，含有与第一层接触的电子传输性高的物质的第二层和含有物质的电荷产生层 具有高空穴传输性能和与第二层接触的受主物质依次设置在阳极上。 电荷产生层在可见光区域中不具有吸收光谱的峰值。

公开(公告)号：US09083000B2

公开(公告)日：2015-07-14

申请号：US13456477

申请日：2012-04-26

申请人： Nobuharu Ohsawa ,  Toshiki Sasaki ,  Satoshi Seo

发明人： Nobuharu Ohsawa ,  Toshiki Sasaki ,  Satoshi Seo

IPC分类号： H01L33/00 ,  H01L51/52 ,  H01L33/40 ,  H01L33/42 ,  H01L33/08 ,  H01L33/50 ,  H01L51/50

CPC分类号： H01L51/5218 ,  C09K11/025 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1014 ,  C09K2211/185 ,  H01L33/08 ,  H01L33/405 ,  H01L33/42 ,  H01L33/507 ,  H01L51/0052 ,  H01L51/0054 ,  H01L51/0058 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/0072 ,  H01L51/0074 ,  H01L51/0085 ,  H01L51/0091 ,  H01L51/5044 ,  H01L51/5206 ,  H01L51/5221 ,  H01L51/5234 ,  H01L51/5265 ,  H01L2251/301 ,  H01L2251/308

摘要： Disclosed is a light-emitting element with a microcavity structure which is capable of amplifying a plurality of wavelengths to give emission of a desired color. The light-emitting element includes a pair of electrodes and an EL layer having a light-emitting substance interposed between the pair of electrodes. One of the pair of electrodes gives a reflective surface and the other electrode gives a semi-reflective surface. The light-emitting element is arranged so that the emission of the light-emitting substance covers at least two wavelengths λ and an optical path length L between the reflective surface and the semi-reflective surface satisfies an equation L=nλ/2 where n is an integer greater than or equal to 2.

摘要翻译： 公开了具有微腔结构的发光元件，其能够放大多个波长以发出期望的颜色。 发光元件包括一对电极和具有置于该对电极之间的发光物质的EL层。 一对电极中的一个给出反射表面，另一个电极给出半反射表面。 发光元件被布置成使得发光物质的发射覆盖至少两个波长λ，并且反射表面和半反射表面之间的光程长度L满足等式L =nλ/ 2，其中n是 大于或等于2的整数。

公开(公告)号：US09079879B2

公开(公告)日：2015-07-14

申请号：US13031734

申请日：2011-02-22

申请人： Hiroshi Kadoma ,  Nobuharu Ohsawa ,  Satoshi Seo

发明人： Hiroshi Kadoma ,  Nobuharu Ohsawa ,  Satoshi Seo

IPC分类号： H01L51/30 ,  C07D409/10 ,  C07D403/10 ,  C07D405/10 ,  C09K11/06 ,  H01L51/00 ,  H05B33/10 ,  H01L51/50

CPC分类号： H01L51/0072 ,  C07D403/10 ,  C07D405/10 ,  C07D409/10 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1029 ,  C09K2211/1044 ,  C09K2211/1088 ,  C09K2211/1092 ,  H01L51/0052 ,  H01L51/0056 ,  H01L51/0058 ,  H01L51/0067 ,  H01L51/0073 ,  H01L51/0074 ,  H01L51/5012 ,  H01L51/5016 ,  H01L51/5048 ,  H01L51/5056 ,  H05B33/10

摘要： An object is to provide a novel heterocyclic compound which can be used for a light-emitting element, as a host material of a light-emitting layer in which a light-emitting substance is dispersed. Other objects are to provide a light-emitting element having low driving voltage, a light-emitting element having high current efficiency, and a light-emitting element having a long lifetime. Provided are a light-emitting element including a compound in which a dibenzo[f,h]quinoxaline ring and a hole-transport skeleton are bonded through an arylene group, and a light-emitting device, an electronic device, and a lighting device each using this light-emitting element. The heterocyclic compound represented by General Formula (G1) below is provided.

摘要翻译： 本发明的目的是提供一种可用于发光元件的新型杂环化合物，作为分散有发光物质的发光层的主体材料。 其他目的是提供一种具有低驱动电压的发光元件，具有高电流效率的发光元件和具有长寿命的发光元件。 本发明提供的发光元件包括二苯并[f，h]喹喔啉环和空穴传输骨架通过亚芳基键合的化合物，以及发光器件，电子器件和照明器件 使用该发光元件。 提供由下述通式（G1）表示的杂环化合物。

公开(公告)号：US09065061B2

公开(公告)日：2015-06-23

申请号：US12914216

申请日：2010-10-28

申请人： Hideko Inoue ,  Tomoka Nakagawa ,  Nobuharu Ohsawa ,  Satoshi Seo ,  Yui Yamada

发明人： Hideko Inoue ,  Tomoka Nakagawa ,  Nobuharu Ohsawa ,  Satoshi Seo ,  Yui Yamada

IPC分类号： H01L51/54 ,  C09K11/06 ,  H01L51/00 ,  C07F15/00 ,  C09B57/10 ,  H05B33/14 ,  H01L51/50

CPC分类号： H01L51/0085 ,  C07F15/0033 ,  C07F15/0086 ,  C09B57/10 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1014 ,  C09K2211/1022 ,  C09K2211/1059 ,  C09K2211/185 ,  H01L51/0059 ,  H01L51/0072 ,  H01L51/0074 ,  H01L51/0087 ,  H01L51/5016 ,  H01L51/5036 ,  H05B33/14

摘要： Provided are organometallic complexes that can exhibit phosphorescence. One of the novel organometallic complexes is represented by General Formula (G1). In General Formula (G1), R1 represents any of an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms which may have a substituent, and an aralkyl group having 7 to 10 carbon atoms which may have a substituent. In addition, R2 represents any of an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 5 to 8 carbon atoms which may have a substituent, and an aryl group having 6 to 12 carbon atoms which may have a substituent. Further, Ar represents an arylene group having 6 to 13 carbon atoms which may have a substituent. Further, M represents a Group 9 element or a Group 10 element.

摘要翻译： 提供可以显示磷光的有机金属络合物。 新型有机金属配合物之一由通式（G1）表示。 在通式（G1）中，R 1表示碳原子数1〜6的烷基，可以具有取代基的碳原子数5〜8的环烷基，碳原子数7〜10的芳烷基，可以具有 取代基。 此外，R 2表示可以具有取代基的碳原子数1〜6的烷基，碳原子数5〜8的环烷基，碳原子数6〜12的可具有取代基的芳基。 此外，Ar表示可以具有取代基的碳原子数6〜13的亚芳基。 此外，M表示第9族元素或第10族元素。