公开(公告)号：US11462696B2

公开(公告)日：2022-10-04

申请号：US16249209

申请日：2019-01-16

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Tomoya Yamaguchi ,  Hideko Yoshizumi ,  Hiromitsu Kido ,  Airi Ueda ,  Satoshi Seo

IPC: H01L51/00 ,  C07D491/048 ,  H01L51/50 ,  H01L27/32 ,  H01L51/52 ,  H01L51/56

Abstract: A novel organic compound is provided. That is, a novel organic compound that is effective in improving element characteristics and reliability is provided. The organic compound is represented by General Formula (G1) having a dibenzobenzofuroquinoxaline skeleton or a dibenzobenzothienoquinoxaline skeleton. In General Formula (G1), Q represents O or S, at least one of R1 to R12 represents a first group having a substituted or unsubstituted condensed aromatic ring or condensed heteroaromatic ring having 3 to 30 carbon atoms, and the other or others of R1 to R12 each independently represent any one of hydrogen, a halogeno group, a hydroxy group, an amino group, a nitro group, and a group having 1 to 50 carbon atoms.

公开(公告)号：US11121326B2

公开(公告)日：2021-09-14

申请号：US16940724

申请日：2020-07-28

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hiroki Suzuki ,  Tomoya Yamaguchi ,  Hideko Yoshizumi ,  Satoshi Seo ,  Tatsuyoshi Takahashi ,  Hiromitsu Kido ,  Satomi Watabe

IPC: H01L51/00 ,  C07D491/048 ,  H05B33/20 ,  H01L51/50 ,  C09K11/06

Abstract: A novel organic compound is provided. That is, a novel organic compound that is effective in improving the element characteristics and reliability is provided. The organic compound has a benzofuroquinoxaline skeleton or a benzothienoquinoxaline skeleton. The organic compound is represented by General Formula (G1). In the formula, Q represents O or S, and each of R1 to R8 independently represents any of hydrogen, a halogeno group, a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted aryl group having 6 to 12 carbon atoms, and a substituted or unsubstituted heteroaryl group having 3 to 12 carbon atoms. At least one of R1 to R8 includes a substituted or unsubstituted condensed aromatic or heteroaromatic ring having 3 to 24 carbon atoms.

公开(公告)号：US10608181B2

公开(公告)日：2020-03-31

申请号：US15634322

申请日：2017-06-27

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi Seo ,  Hiromi Seo ,  Tsunenori Suzuki ,  Hiromitsu Kido

IPC: H01L51/00 ,  C09K11/02 ,  C09K11/06 ,  H01L51/50

Abstract: A method for manufacturing a light-emitting element, in particular, a method for manufacturing a light-emitting element with high emission efficiency is provided. In the method for manufacturing a light-emitting element that includes a light-emitting layer containing a host material and a light-emitting material that is an organic compound or an organic metal complex, the light-emitting layer is formed by co-evaporation of the light-emitting material and the host material, and the light-emitting layer is deposited by co-evaporation while the percentage of the partial pressure of carbon dioxide with respect to the total pressure in an evaporation chamber for the co-evaporation is kept higher than that in the air.

公开(公告)号：US20250115614A1

公开(公告)日：2025-04-10

申请号：US18795999

申请日：2024-08-06

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Tomoya Yamaguchi ,  Hideko Yoshizumi ,  Hiromitsu Kido ,  Satoshi Seo ,  Toshiki Sasaki

IPC: C07D491/048 ,  C07D495/04 ,  H10K50/11 ,  H10K50/12 ,  H10K50/125 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K50/81 ,  H10K50/82 ,  H10K85/60

Abstract: A furopyrazine derivative that is a novel organic compound is provided. The organic compound has a furopyrazine skeleton and is represented by General Formula (G1). In General Formula (G1), Q represents oxygen or sulfur, Ar1 represents a substituted or unsubstituted condensed aromatic ring, R1 and R2 independently represent hydrogen or a group having 1 to 100 total carbon atoms, and at least one of R1 and R2 has a hole-transport skeleton.

公开(公告)号：US12232420B2

公开(公告)日：2025-02-18

申请号：US17981689

申请日：2022-11-07

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Miki Kurihara ,  Hideko Yoshizumi ,  Satomi Watabe ,  Hiromitsu Kido ,  Satoshi Seo

IPC: H01L51/00 ,  C07D491/048 ,  H10K85/60 ,  H10K50/11 ,  H10K59/12 ,  H10K71/16

Abstract: A novel organic compound is provided. That is, a novel organic compound that is effective in improving reliability of a light-emitting element is provided. The organic compound includes a condensed ring including a pyrimidine ring and is represented by General Formula (G1). In General Formula (G1), A represents a group having 6 to 100 carbon atoms and includes at least one of an aromatic ring and a heteroaromatic ring. The aromatic ring and the heteroaromatic ring may each include a substituent. Furthermore, Q represents oxygen or sulfur. A ring X represents a substituted or unsubstituted naphthalene ring or a substituted or unsubstituted phenanthrene ring.

公开(公告)号：US12096690B2

公开(公告)日：2024-09-17

申请号：US17893355

申请日：2022-08-23

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Tomoya Yamaguchi ,  Hideko Yoshizumi ,  Hiromitsu Kido ,  Airi Ueda ,  Satoshi Seo

IPC: H01L51/00 ,  C07D491/048 ,  H10K85/60 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K50/81 ,  H10K50/82 ,  H10K50/842 ,  H10K59/38 ,  H10K71/00 ,  H10K71/16 ,  H10K71/60 ,  H10K101/10 ,  H10K101/30 ,  H10K101/40 ,  H10K102/00 ,  H10K102/10

CPC classification number: H10K85/6576 ,  C07D491/048 ,  H10K85/657 ,  H10K85/6572 ,  H10K85/6574 ,  H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K50/171 ,  H10K50/81 ,  H10K50/82 ,  H10K50/8426 ,  H10K59/38 ,  H10K71/00 ,  H10K71/16 ,  H10K71/60 ,  H10K2101/10 ,  H10K2101/30 ,  H10K2101/40 ,  H10K2102/103 ,  H10K2102/311 ,  H10K2102/351

Abstract: A novel organic compound is provided. That is, a novel organic compound that is effective in improving element characteristics and reliability is provided. The organic compound is represented by General Formula (G1) having a dibenzobenzofuroquinoxaline skeleton or a dibenzobenzothienoquinoxaline skeleton.




In General Formula (G1), Q represents O or S, at least one of R1 to R12 represents a first group having a substituted or unsubstituted condensed aromatic ring or condensed heteroaromatic ring having 3 to 30 carbon atoms, and the other or others of R1 to R12 each independently represent any one of hydrogen, a halogeno group, a hydroxy group, an amino group, a nitro group, and a group having 1 to 50 carbon atoms.

公开(公告)号：US12091416B2

公开(公告)日：2024-09-17

申请号：US17058435

申请日：2019-05-21

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi Seo ,  Satomi Watabe ,  Hideko Yoshizumi ,  Hiromitsu Kido ,  Toshiki Sasaki ,  Akira Nagasaka ,  Yuta Kawano

IPC: C07D491/048 ,  C07D513/04 ,  C07D519/00 ,  H10K50/11 ,  H10K85/60 ,  H10K101/10

CPC classification number: C07D491/048 ,  C07D513/04 ,  C07D519/00 ,  H10K85/626 ,  H10K85/6574 ,  H10K85/6576 ,  H10K50/11 ,  H10K2101/10

Abstract: A benzofuropyrimidine derivative or benzothienopyrimidine derivative that is a novel organic compound is provided. An organic compound represented by General Formula (G1) below.




Q represents oxygen or sulfur. Ar1, Ar2, Ar3, and Ar4 each independently represent an aromatic hydrocarbon ring, and the number of carbon atoms included in the aromatic hydrocarbon ring is 6 to 25. m and n are each 0 or 1. A is a group having 12 to 100 carbon atoms in total and includes one or more of a benzene ring, a naphthalene ring, a fluorene ring, a phenanthrene ring, a triphenylene ring, a heteroaromatic ring including a dibenzothiophene ring, a heteroaromatic ring including a dibenzofuran ring, a heteroaromatic ring including a carbazole ring, a benzimidazole ring, and a triphenylamine structure.

公开(公告)号：US12063803B2

公开(公告)日：2024-08-13

申请号：US17356716

申请日：2021-06-24

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Naoaki Hashimoto ,  Tsunenori Suzuki ,  Satoshi Seo ,  Hiromi Seo ,  Hiromitsu Kido

IPC: H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K59/38 ,  G09G3/3266 ,  G09G3/3275 ,  H01L27/146 ,  H10K50/14 ,  H10K50/17 ,  H10K50/818 ,  H10K50/842 ,  H10K50/856 ,  H10K50/86 ,  H10K59/121 ,  H10K59/126 ,  H10K59/131 ,  H10K59/32 ,  H10K59/35 ,  H10K59/40 ,  H10K85/60 ,  H10K101/00 ,  H10K101/10

CPC classification number: H10K50/11 ,  H10K50/15 ,  H10K50/16 ,  H10K59/38 ,  G09G3/3266 ,  G09G3/3275 ,  G09G2300/0408 ,  G09G2300/0804 ,  H01L27/14678 ,  H10K50/14 ,  H10K50/17 ,  H10K50/171 ,  H10K50/818 ,  H10K50/8426 ,  H10K50/856 ,  H10K50/865 ,  H10K59/1216 ,  H10K59/126 ,  H10K59/131 ,  H10K59/32 ,  H10K59/35 ,  H10K59/40 ,  H10K85/615 ,  H10K85/622 ,  H10K85/626 ,  H10K85/633 ,  H10K85/654 ,  H10K85/6572 ,  H10K85/6576 ,  H10K2101/10 ,  H10K2101/90

Abstract: A light-emitting element that includes a fluorescent material and has a high emission efficiency is provided. A light-emitting element in which a delayed fluorescence component due to TTA accounts for a high proportion of emissive components is provided. A novel light-emitting device with a high emission efficiency and a low power consumption is provided. A light-emitting element includes an anode, a cathode, and an EL layer. The EL layer includes a light-emitting layer including a host material and an electron-transport layer including a first material in contact with the light-emitting layer. The LUMO level of the first material is lower than that of the host material. The proportion of a delayed fluorescence component due to TTA is greater than or equal to 10 percent of the light emission from the EL layer. The proportion of the delayed fluorescence component due to TTA may be greater than or equal to 15 percent of the light emission.

公开(公告)号：US11522142B2

公开(公告)日：2022-12-06

申请号：US16488280

申请日：2018-02-22

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei Yamazaki ,  Satoshi Seo ,  Hideko Yoshizumi ,  Tomoya Yamaguchi ,  Hiromitsu Kido ,  Takeyoshi Watabe ,  Airi Tomida ,  Keito Fukuda

IPC: H01L51/00 ,  C07F15/00 ,  C09K11/06 ,  H01L51/50 ,  G08G1/0968

Abstract: A novel light-emitting element material is provided. Alternatively, a light-emitting element material capable of simplifying a process for manufacturing a light-emitting element is provided. Alternatively, a light-emitting element material capable of reducing the cost for manufacturing a light-emitting element is provided. Alternatively, one embodiment of the present invention provides a light-emitting element material capable of achieving a light-emitting element having favorable emission efficiency. A light-emitting element material including an organic compound which includes a first skeleton having a carrier-transport property and a second skeleton having a light-emitting property in one molecule and in which the molecular weight is less than or equal to 3000, is provided.

公开(公告)号：US11469380B2

公开(公告)日：2022-10-11

申请号：US16647602

申请日：2018-09-06

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Miki Kurihara ,  Hideko Yoshizumi ,  Hiromitsu Kido ,  Satomi Watabe ,  Satoshi Seo

IPC: C07D491/048 ,  H01L51/00 ,  C09K11/02 ,  H01L51/50

Abstract: A benzofuropyrimidine derivative or a benzothienopyrimidine derivative that is a novel organic compound is provided. The organic compound has a benzofuropyrimidine skeleton or a benzothienopyrimidine skeleton and is represented by General Formula (G1) below. In General Formula (G1), Q represents oxygen or sulfur. Each of A1 and A2 independently represents a substituted or unsubstituted polycyclic aromatic hydrocarbon. Furthermore, m represents any one of integers from 0 to 4. Furthermore, n represents any one of integers from 1 to 4. Each of R1 to R12 independently represents any one of hydrogen, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 7 carbon atoms, and a substituted or unsubstituted aryl group having 6 to 13 carbon atoms.