公开(公告)号：US10129947B2

公开(公告)日：2018-11-13

申请号：US11986949

申请日：2007-11-27

Applicant: Nobuharu Ohsawa ,  Hideko Inoue ,  Satoshi Seo

Inventor： Nobuharu Ohsawa ,  Hideko Inoue ,  Satoshi Seo

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

Abstract: Light-emitting elements having high emission efficiency and long lifetime can be provided. By forming light-emitting devices including the light-emitting elements, the light-emitting devices having low power consumption and long lifetime can be provided. A light-emitting device comprises a light-emitting element including a light-emitting layer between a first electrode and a second electrode. The light-emitting layer includes a first organic compound having a hole-transporting property, a second organic compound having an electron transporting property, and an organometallic complex. A central metal of the organometallic complex is an element belonging to one of Group 9 and Group 10, and a ligand of the organometallic complex is a ligand having a pyrazine skeleton.

公开(公告)号：US09929350B2

公开(公告)日：2018-03-27

申请号：US13405627

申请日：2012-02-27

Applicant: Shunpei Yamazaki ,  Satoshi Seo ,  Nobuharu Ohsawa ,  Satoko Shitagaki ,  Hideko Inoue ,  Hiroshi Kadoma ,  Harue Osaka ,  Kunihiko Suzuki ,  Yasuhiko Takemura

Inventor： Shunpei Yamazaki ,  Satoshi Seo ,  Nobuharu Ohsawa ,  Satoko Shitagaki ,  Hideko Inoue ,  Hiroshi Kadoma ,  Harue Osaka ,  Kunihiko Suzuki ,  Yasuhiko Takemura

IPC: H01L29/08 ,  H01L35/24 ,  H01L51/00

CPC classification number: H01L51/0059 ,  H01L51/0067 ,  H01L2251/5384 ,  H01L2251/552

Abstract: A light-emitting element includes a light-emitting layer including a guest, an n-type host and a p-type host between a pair of electrodes, where the difference between the energy difference between a triplet excited state and a ground state of the n-type host (or p-type host) and the energy difference between a triplet excited state and a ground state of the guest is 0.15 eV or more. Alternatively, in such a light-emitting element, the LUMO level of the n-type host is higher than the LUMO level of the guest by 0.1 eV or more, or the HOMO level of the p-type host is lower than the HOMO level of the guest by 0.1 eV or more.

公开(公告)号：US09406894B2

公开(公告)日：2016-08-02

申请号：US13486260

申请日：2012-06-01

Applicant: Hideko Inoue ,  Tomoka Nakagawa ,  Satoshi Seo ,  Nobuharu Ohsawa

Inventor： Hideko Inoue ,  Tomoka Nakagawa ,  Satoshi Seo ,  Nobuharu Ohsawa

IPC: H01L51/54 ,  C09K11/06 ,  H01L51/00 ,  C07F15/00 ,  H01L51/50

CPC classification number: H01L51/0085 ,  C07F15/0033 ,  C09K11/06 ,  C09K2211/1059 ,  C09K2211/185 ,  H01L51/0067 ,  H01L51/0072 ,  H01L51/009 ,  H01L51/5012 ,  H01L51/5016

Abstract: A novel and highly reliable organometallic complex which has an emission region in the wavelength band of blue to yellow is provided. A light-emitting element using the organometallic complex, a light-emitting device, an electronic device, and a lighting device each using the light-emitting element are provided. An organometallic complex including a structure represented by General Formula (G1) is provided. The organometallic complex including the structure represented by General Formula (G1) is a novel and highly reliable organometallic complex which has an emission region in the wavelength band of blue to yellow. In addition, a light-emitting element using the organometallic complex, a light-emitting device, an electronic device, and a lighting device each including the light-emitting element are provided.

Abstract translation: 提供了具有蓝色至黄色的波段的发射区域的新颖且高度可靠的有机金属络合物。 提供了使用有机金属复合体的发光元件，发光元件，电子元件以及各自使用发光元件的照明器件。 提供了包含由通式（G1）表示的结构的有机金属络合物。 包括由通式（G1）表示的结构的有机金属络合物是具有蓝色至黄色的波长带的发光区域的新颖且高度可靠的有机金属络合物。 另外，提供了使用有机金属复合体的发光元件，发光元件，电子元件，以及各自包含发光元件的照明器件。

公开(公告)号：US09012036B2

公开(公告)日：2015-04-21

申请号：US12120337

申请日：2008-05-14

Applicant: Hideko Inoue ,  Satoko Shitagaki ,  Satoshi Seo

Inventor： Hideko Inoue ,  Satoko Shitagaki ,  Satoshi Seo

IPC: C09K11/00 ,  C07F15/00 ,  C09K11/06 ,  H05B33/14

CPC classification number: H01L51/0085 ,  C07F15/0033 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1029 ,  C09K2211/1044 ,  C09K2211/185 ,  H01L51/5016 ,  H01L51/504 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/5088 ,  H01L51/5092 ,  H01L51/5206 ,  H01L51/5221 ,  H01L51/5278 ,  H01L51/56 ,  H01L2251/301 ,  H01L2251/306 ,  H05B33/14

Abstract: To provide a novel organometallic complex, and light emitting elements, light emitting devices, and electronic devices which include the organometallic complex. In addition, to provide a composition in which the organometallic complex is dissolved and to provide a method for manufacturing light emitting elements using the composition. An organometallic complex has high solubility in a solvent. In the organometallic complex, the ligand including a pyrazine skeleton is bound to an atom belonging to Group 9 (Co, Rh, or Ir) or an atom belonging to Group 10 (Ni, Pd, or Pt). In addition, the light emission efficiency is high. Therefore, the organometallic complex is preferably used for manufacturing a light emitting element.

Abstract translation: 提供一种新颖的有机金属络合物，以及包含有机金属络合物的发光元件，发光元件和电子器件。 此外，提供其中溶解有机金属配合物的组合物，并提供使用该组合物制造发光元件的方法。 有机金属络合物在溶剂中具有高溶解度。 在有机金属络合物中，包含吡嗪骨架的配体与属于第9族（Co，Rh或Ir）或属于第10族的原子（Ni，Pd或Pt）的原子结合。 另外，发光效率高。 因此，有机金属配合物优选用于制造发光元件。

公开(公告)号：US08994263B2

公开(公告)日：2015-03-31

申请号：US13370676

申请日：2012-02-10

Applicant: Satoko Shitagaki ,  Satoshi Seo ,  Nobuharu Ohsawa ,  Hideko Inoue ,  Masahiro Takahashi ,  Kunihiko Suzuki

Inventor： Satoko Shitagaki ,  Satoshi Seo ,  Nobuharu Ohsawa ,  Hideko Inoue ,  Masahiro Takahashi ,  Kunihiko Suzuki

IPC: H05B33/14 ,  H01L51/00 ,  H01L51/50

CPC classification number: H01L51/5016 ,  C09K11/025 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1044 ,  C09K2211/185 ,  H01L51/0052 ,  H01L51/0056 ,  H01L51/0058 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/0072 ,  H01L51/0074 ,  H01L51/0085 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/5088 ,  H01L51/5092 ,  H01L51/5218 ,  H01L51/5234 ,  H01L2251/55 ,  H05B33/14

Abstract: Provided is a light-emitting element with high external quantum efficiency, or a light-emitting element with a long lifetime. The light-emitting element includes, between a pair of electrodes, a light-emitting layer including a guest material and a host material, in which an emission spectrum of the host material overlaps with an absorption spectrum of the guest material, and phosphorescence is emitted by conversion of an excitation energy of the host material into an excitation energy of the guest material. By using the overlap between the emission spectrum of the host material and the absorption spectrum of the guest material, the energy smoothly transfers from the host material to the guest material, so that the energy transfer efficiency of the light-emitting element is high. Accordingly, a light-emitting element with high external quantum efficiency can be achieved.

Abstract translation: 提供具有高外部量子效率的发光元件或具有长寿命的发光元件。 发光元件在一对电极之间包括包含客体材料的发光层和主体材料，其中主体材料的发射光谱与客体材料的吸收光谱重叠，并且发射磷光 通过将主体材料的激发能转化为客体材料的激发能量。 通过使用主体材料的发射光谱和客体材料的吸收光谱之间的重叠，能量从主体材料平滑地转移到客体材料，使得发光元件的能量传递效率高。 因此，可以实现具有高外部量子效率的发光元件。

公开(公告)号：US08921548B2

公开(公告)日：2014-12-30

申请号：US13277603

申请日：2011-10-20

Applicant: Hideko Inoue ,  Tomoya Yamaguchi ,  Satoko Shitagaki ,  Takahiro Ushikubo ,  Satoshi Seo ,  Yui Yamada ,  Hiromi Nowatari

Inventor： Hideko Inoue ,  Tomoya Yamaguchi ,  Satoko Shitagaki ,  Takahiro Ushikubo ,  Satoshi Seo ,  Yui Yamada ,  Hiromi Nowatari

IPC: C01G55/00 ,  C07D239/28 ,  C07F15/00 ,  H05B33/14 ,  H01L51/00 ,  C09K11/06 ,  H01L51/50 ,  H01L51/52 ,  H01L27/32

CPC classification number: H01L51/0085 ,  C07F15/0033 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1044 ,  C09K2211/185 ,  H01L27/18 ,  H01L27/3244 ,  H01L27/3283 ,  H01L51/009 ,  H01L51/5012 ,  H01L51/5016 ,  H01L51/5044 ,  H01L51/5278 ,  H01L2251/5361 ,  H05B33/14

Abstract: Provided is a novel substance that can emit phosphorescence. Alternatively, provided is a novel substance with high emission efficiency. An organometallic complex in which a 4-arylpyrimidine derivative is a ligand and iridium is a central metal is provided. Specifically, an organometallic complex having a structure represented by a general formula (G1) is provided. In the general formula (G1), R1 represents a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted aryl group having 6 to 10 carbon atoms, R2 represents any of hydrogen, a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms, and a substituted or unsubstituted phenyl group, R3 represents hydrogen or a substituted or unsubstituted alkyl group having 1 to 4 carbon atoms, and Ar1 represents a substituted or unsubstituted arylene group having 6 to 10 carbon atoms.

Abstract translation: 提供可以发射磷光的新物质。 或者，提供了具有高排放效率的新型物质。 提供其中4-芳基嘧啶衍生物为配体和铱为中心金属的有机金属络合物。 具体地说，提供具有由通式（G1）表示的结构的有机金属络合物。 在通式（G1）中，R 1表示取代或未取代的碳原子数1〜4的烷基或取代或未取代的碳原子数6〜10的芳基，R 2表示氢，取代或未取代的烷基， 至4个碳原子，以及取代或未取代的苯基，R 3表示氢或取代或未取代的碳原子数1〜4的烷基，Ar 1表示取代或未取代的碳数为6〜10的亚芳基。

公开(公告)号：US08795851B2

公开(公告)日：2014-08-05

申请号：US13191665

申请日：2011-07-27

Applicant: Hideko Inoue ,  Tomoka Nakagawa ,  Nobuharu Ohsawa ,  Satoshi Seo

Inventor： Hideko Inoue ,  Tomoka Nakagawa ,  Nobuharu Ohsawa ,  Satoshi Seo

IPC: H01L51/54 ,  C07F15/00

CPC classification number: H01L51/0085 ,  C07F15/0033 ,  C09K11/06 ,  H01L27/32 ,  H01L51/007 ,  H01L51/0074 ,  H01L51/5012

Abstract: An object is to provide a novel organometallic complex that has a broader emission spectrum in the wavelength range of green to blue. Other objects are to provide a light-emitting element using the organometallic complex, and a light-emitting device, an electronic device, and a lighting device each using the light-emitting element. Provided is an organometallic complex represented by a general formula (G1). Represented by the general formula (G1) is a novel organometallic complex that exhibits a broad emission spectrum in the wavelength range of green to blue. Further provided are a light-emitting element using the organometallic complex, and a light-emitting device, an electronic device, and a lighting device each using the light-emitting element.

Abstract translation: 目的是提供一种在绿色至蓝色的波长范围内具有较宽发射光谱的新型有机金属络合物。 其他目的是提供使用有机金属络合物的发光元件，以及各自使用发光元件的发光器件，电子器件和照明器件。 提供由通式（G1）表示的有机金属络合物。 由通式（G1）表示的是在绿色至蓝色的波长范围内呈现广泛发射光谱的新型有机金属络合物。 还提供了使用有机金属络合物的发光元件，以及各自使用发光元件的发光器件，电子器件和照明器件。

公开(公告)号：US08569486B2

公开(公告)日：2013-10-29

申请号：US13609970

申请日：2012-09-11

Applicant: Hideko Inoue ,  Satoshi Seo ,  Satoko Shitagaki ,  Hiroko Abe

Inventor： Hideko Inoue ,  Satoshi Seo ,  Satoko Shitagaki ,  Hiroko Abe

IPC: C07F7/00

CPC classification number: H01L51/0085 ,  C07F15/0033 ,  C09K11/06 ,  C09K2211/1044 ,  C09K2211/185 ,  H01L51/5016 ,  H05B33/14

Abstract: An organometallic complex according to the present invention comprises a structure represented by the following general formula (1). In the formula, R1 to R5 are any one selected from the group consisting of hydrogen, a halogen element, an acyl group, an alkyl group, an alkoxy group, an aryl group, a cyano group, and a heterocyclic group, Ar is an aryl group having an electron-withdrawing group or a heterocyclic group having electron-drawing group, and M is an element of Group 9 or an element of Group 10.

公开(公告)号：US08564193B2

公开(公告)日：2013-10-22

申请号：US13541109

申请日：2012-07-03

Applicant: Junichiro Sakata ,  Hideko Inoue ,  Satoshi Seo ,  Nobuharu Ohsawa

Inventor： Junichiro Sakata ,  Hideko Inoue ,  Satoshi Seo ,  Nobuharu Ohsawa

IPC: H01J1/62 ,  H01J63/04

CPC classification number: H01L51/5203 ,  H01L51/006 ,  H01L51/0067 ,  H01L51/008 ,  H01L51/0081 ,  H01L51/0085 ,  H01L51/0087 ,  H01L51/009 ,  H01L51/5012

Abstract: A light-emitting element is provided which has a light-emitting layer between a first electrode and a second electrode, where the light-emitting layer has a first layer and a second layer; the first layer contains a first organic compound and a third organic compound; the second layer contains a second organic compound and the third organic compound; the first layer is provided to be in contact with the second layer on the first electrode side; the first organic compound is an organic compound with an electron transporting property; the second organic compound is an organic compound with a hole transporting property; the third organic compound has an electron trapping property; and light emission from the third organic compound can be obtained when voltage is applied to the first electrode and the second electrode so that the potential of the first electrode is higher than that of the second electrode.

公开(公告)号：US08389132B2

公开(公告)日：2013-03-05

申请号：US13290374

申请日：2011-11-07

Applicant: Satoshi Seo ,  Hideko Inoue ,  Nobuharu Ohsawa

Inventor： Satoshi Seo ,  Hideko Inoue ,  Nobuharu Ohsawa

IPC: H01L51/54

CPC classification number: H01L51/0085 ,  C07F15/0033 ,  C09K11/06 ,  C09K2211/1044 ,  C09K2211/185 ,  H01L51/0071 ,  H01L51/008 ,  H01L51/0087 ,  H01L51/5016 ,  H05B33/14

Abstract: In a general formula (1), each of R1 and R2 represents any one of hydrogen, an alkyl group, a halogen group, —CF3, an alkoxy group, and an aryl group. M represents an element that belongs to Group 9 or Group 10. Here, an alkyl group having 1 to 4 carbon atoms is preferable in the alkyl group. A fluoro group is particularly preferable in the halogen group. An alkoxy group having 1 to 4 carbon atoms is preferable in the alkoxy group. A phenyl group is particularly preferable in the aryl group. Iridium is particularly preferable among the elements that belong to Group 9, and platinum is particularly preferable among the elements that belong to Group 10. The general formula (1) is inserted.

Abstract translation: 在通式（1）中，R 1和R 2各自表示氢，烷基，卤素基，-CF 3，烷氧基和芳基中的任一个。 M表示属于第9族或第10族的元素。这里，烷基中优选碳原子数1〜4的烷基。 在卤素基团中，氟基是特别优选的。 在烷氧基中优选碳原子数1〜4的烷氧基。 在芳基中特别优选苯基。 铱是属于第9族的元素中特别优选的，铂是特别优选属于第10族的元素。插入通式（1）。