公开(公告)号：US10109806B2

公开(公告)日：2018-10-23

申请号：US14278775

申请日：2014-05-15

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Hideko Inoue ,  Tomoya Yamaguchi ,  Hiromi Seo ,  Tatsuyoshi Takahashi ,  Satoshi Seo

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

Abstract: A light-emitting element including a phosphorescent organometallic complex is provided. The organometallic complex emits phosphorescence in the yellow green to orange wavelength range and has high emission efficiency and high reliability. Thus, the organometallic complex that exhibits phosphorescence is provided. The organometallic complex, in which nitrogen at the 3-position of a pyrimidine ring is coordinated to a metal, a carbazole skeleton is bonded to the 4-position of the pyrimidine ring, and the carbazole skeleton is bonded to the metal, is used as an emission center. The metal is preferably a Group 9 element or a Group 10 element, more preferably iridium.

公开(公告)号：US10043982B2

公开(公告)日：2018-08-07

申请号：US14260836

申请日：2014-04-24

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hiromi Seo ,  Tatsuyoshi Takahashi ,  Satoshi Seo

IPC: H01L51/00 ,  H01L51/50

Abstract: Provided is a light-emitting element with high emission efficiency. The light-emitting element including a first electrode, a second electrode, and a layer containing an organic compound between the first electrode and the second electrode. The layer containing the organic compound includes a light-emitting layer at least containing a first organic compound, a second organic compound, and a fluorescent substance. The first organic compound has an electron-transport property. The second organic compound has a hole-transport property. The second organic compound has a triarylamine skeleton. At least one of three aryl groups in the triarylamine skeleton is a group including a p-biphenyl skeleton.

公开(公告)号：US20180166641A1

公开(公告)日：2018-06-14

申请号：US15890899

申请日：2018-02-07

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hideko Inoue ,  Miki Kanamoto ,  Hiromi Seo ,  Satoshi Seo ,  Tatsuyoshi Takahashi ,  Tomoka Nakagawa

IPC: H01L51/00

CPC classification number: H01L51/0074 ,  C07D491/048 ,  H01L51/0052 ,  H01L51/0059 ,  H01L51/0071 ,  H01L51/0072 ,  H01L51/0073 ,  H01L51/0085 ,  H01L51/5016 ,  H01L2251/5384

Abstract: A light-emitting element having high emission efficiency is provided. A light-emitting element having a low driving voltage is provided. A novel compound which can be used for a transport layer or as a host material or a light-emitting material of a light-emitting element is provided. A novel compound with a benzofuropyrimidine skeleton is provided. Also provided is a light-emitting element which includes the compound with the benzofuropyrimidine skeleton between a pair of electrodes.

公开(公告)号：US09960369B2

公开(公告)日：2018-05-01

申请号：US14699731

申请日：2015-04-29

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Sachiko Kawakami ,  Hiromi Seo ,  Tatsuyoshi Takahashi ,  Satoshi Seo

IPC: H01L51/00 ,  H01L27/32 ,  H04R1/02 ,  H04R1/08 ,  C07D405/10 ,  H01L51/50 ,  H01L51/52

CPC classification number: H01L51/0073 ,  C07D405/10 ,  H01L27/3244 ,  H01L51/0052 ,  H01L51/0058 ,  H01L51/0072 ,  H01L51/5016 ,  H01L51/5028 ,  H01L51/5072 ,  H01L51/5237 ,  H04R1/028 ,  H04R1/083

Abstract: To provide a novel compound which can be used as a host material in which a light-emitting substance is dispersed. To provide a light-emitting element having a long lifetime. A compound represented by General Formula (G0). In the formula, A1 represents a dibenzo[f,h]quinoxalinyl group, A2 represents a benzo[b]naphtho[2,3-d]furanyl group, and Ar represents an arylene group having 6 to 25 carbon atoms. The dibenzo[f,h]quinoxalinyl group, the benzo[b]naphtho[2,3-d]furanyl group, and the arylene group are separately unsubstituted or substituted by any one of an alkyl group having 1 to 6 carbon atoms, a cycloalkyl group having 3 to 6 carbon atoms, and an aryl group having 6 to 13 carbon atoms. A1-Ar-A2   (G0)

公开(公告)号：US20180083206A1

公开(公告)日：2018-03-22

申请号：US15710285

申请日：2017-09-20

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Miki Kurihara ,  Hideko Yoshizumi ,  Tatsuyoshi Takahashi ,  Hiromitsu Kido ,  Satoshi Seo

IPC: H01L51/00

CPC classification number: H01L51/0085 ,  C07D209/82 ,  C07D213/02 ,  H01L51/0067 ,  H01L51/5016

Abstract: A novel organometallic complex with high color purity is provided. An organometallic complex represented by General Formula (G1) includes iridium and a plurality of ligands each having a 2-phenylpyridine skeleton, and one or two of the ligands have a carbazole skeleton at the 4-position of the 2-phenylpyridine skeleton. (In the formula, R1 to R8 and R9 to R23 separately represent hydrogen, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted aryl group having 6 to 13 carbon atoms, or a substituted or unsubstituted heteroaryl group having 3 to 12 carbon atoms, and m is 1 or 2.)

公开(公告)号：US09837621B2

公开(公告)日：2017-12-05

申请号：US14695686

申请日：2015-04-24

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hideko Inoue ,  Hiroki Suzuki ,  Hiromi Seo ,  Tatsuyoshi Takahashi ,  Satoshi Seo

IPC: H01L51/00 ,  C07D409/10 ,  H01L51/50

CPC classification number: H01L51/0074 ,  C07D409/10 ,  H01L51/0059 ,  H01L51/0072 ,  H01L51/0085 ,  H01L51/5016 ,  H01L51/504 ,  H01L2251/5384

Abstract: To provide a novel compound which can be used as a host material in which a light-emitting substance is dispersed. To provide a light-emitting element having a long lifetime. A compound represented by General Formula (G0). In the formula, A represents any one of a substituted or unsubstituted dibenzothiophenylene group and a substituted or unsubstituted dibenzofuranylene group, X represents a substituted or unsubstituted fluorenyl group, E represents a substituted or unsubstituted dibenzo[f,h]quinoxalinyl group, and Ar represents a substituted or unsubstituted arylene group having 6 to 30 carbon atoms. E-Ar-A-X   (G0)

公开(公告)号：US09825238B2

公开(公告)日：2017-11-21

申请号：US14468954

申请日：2014-08-26

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Sachiko Kawakami ,  Hiromi Seo ,  Tatsuyoshi Takahashi ,  Satoshi Seo

IPC: H01L51/00 ,  C07D405/10 ,  C09K11/06 ,  H01L51/50

CPC classification number: H01L51/0071 ,  C07D405/10 ,  C09K11/06 ,  C09K2211/145 ,  H01L51/0052 ,  H01L51/0059 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/0072 ,  H01L51/0073 ,  H01L51/0074 ,  H01L51/0085 ,  H01L51/5012 ,  H01L51/5016 ,  H01L51/5072

Abstract: A novel heterocyclic compound that can be used as a host material in which a light-emitting substance is dispersed. A light-emitting element having a long lifetime. A heterocyclic compound in which a substituted or unsubstituted dibenzo[f,h]quinoxalinyl group is bonded to a substituted or unsubstituted arylene group having 6 to 25 carbon atoms which is bonded to any one of the 8-11 positions of a substituted or unsubstituted benzo[b]naphtho[1,2-d]furan skeleton.

公开(公告)号：US09634263B2

公开(公告)日：2017-04-25

申请号：US14223548

申请日：2014-03-24

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Kaori Ogita ,  Satoshi Seo ,  Hiromi Seo ,  Tatsuyoshi Takahashi

IPC: H01L51/50 ,  H01L51/00

CPC classification number: H01L51/0074 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/0072 ,  H01L51/0073 ,  H01L51/5016

Abstract: A novel organic compound that forms an exciplex emitting light with high efficiency is provided. An organic compound with a triarylamine skeleton in which the three aryl groups of the triarylamine skeleton are a p-biphenyl group, a fluoren-2-yl group, and a phenyl group to which a dibenzofuranyl group or a dibenzothiophenyl group is bonded. By the use of the organic compound and an organic compound with an electron-transport property, an exciplex that emits light with extremely high efficiency can be formed.

公开(公告)号：US20140330017A1

公开(公告)日：2014-11-06

申请号：US14267308

申请日：2014-05-01

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hiroshi Kadoma ,  Yuko Kawata ,  Hiromi Seo ,  Tatsuyoshi Takahashi ,  Satoshi Seo

IPC: H01L51/00

CPC classification number: H01L51/0072 ,  C07D487/06 ,  H01L51/0059 ,  H01L51/0074 ,  H01L51/0085 ,  H01L51/5016

Abstract: Provided is a heterocyclic compound that can be used for a carrier-transport material, a host material, or a light-emitting material in a light-emitting element. The heterocyclic compound has an indolo[3,2,1-jk]carbazole skeleton and a dibenzo[f,h]quinoxaline skeleton which are linked to each other through an arylene group. The wide band gap of the heterocyclic compound allows excitation of a green-emissive phosphorescent material, which contributes to the formation of a highly efficient light-emitting element.

Abstract translation: 提供了可用于发光元件中的载流子传输材料，主体材料或发光材料的杂环化合物。 杂环化合物具有通过亚芳基彼此连接的吲哚并[3,2,1-jk]咔唑骨架和二苯并[f，h]喹喔啉骨架。 杂环化合物的宽带隙允许激发绿色发光磷光材料，这有助于形成高效率的发光元件。

公开(公告)号：US20140124764A1

公开(公告)日：2014-05-08

申请号：US14068319

申请日：2013-10-31

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Yasushi Kitano ,  Hiroshi Kadoma ,  Satoko Shitagaki ,  Satoshi Seo ,  Hiromi Seo ,  Tatsuyoshi Takahashi

IPC: H01L51/00

CPC classification number: H01L51/0072 ,  C07D209/86 ,  C07D405/10 ,  C09K11/06 ,  C09K2211/1416 ,  C09K2211/1425 ,  C09K2211/145 ,  C09K2211/1458 ,  H01L51/0073

Abstract: To provide a novel heterocyclic compound capable of being used as a host material in which a light-emitting substance is dispersed. To provide a light-emitting element having a long lifetime. A heterocyclic compound in which a dibenzo[f,h]quinoxalinyl group and a benzo[b]naphtho[1,2-d]furanyl group are bonded through an arylene group having 6 to 13 carbon atoms. The dibenzo[f,h]quinoxalinyl group, the benzo[b]naphtho[1,2-d]furanyl group, and the arylene group separately are unsubstituted or have, as a substituent, an alkyl group having 1 to 4 carbon atoms or an aryl group having 6 to 13 carbon atoms.

Abstract translation: 提供能够用作其中分散有发光物质的主体材料的新型杂环化合物。 提供寿命长的发光元件。 其中二苯并[f，h]喹喔啉基和苯并[b]萘并[1,2-d]呋喃基通过具有6至13个碳原子的亚芳基键合的杂环化合物。 二苯并[f，h]喹喔啉基，苯并[b]萘并[1,2-d]呋喃基和亚芳基分别是未取代的或具有取代基的具有1至4个碳原子的烷基或 具有6至13个碳原子的芳基。