公开(公告)号：US20250089559A1

公开(公告)日：2025-03-13

申请号：US18728945

申请日：2023-01-10

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei YAMAZAKI ,  Nobuharu OHSAWA ,  Toshiki SASAKI ,  Takeyoshi WATABE ,  Hiromitsu KIDO ,  Takuya ISHIMOTO ,  Sachiko KAWAKAMI ,  Masatoshi TAKABATAKE

IPC: H10K85/60 ,  H10K50/19 ,  H10K59/35 ,  H10K101/00 ,  H10K101/25

Abstract: A light-emitting device with high resolution and high efficiency is provided. A first electrode, a second electrode, a first EL layer, an intermediate layer, and a second EL layer are provided, the first electrode is positioned to face the second electrode with the intermediate layer therebetween, the first EL layer is positioned between the first electrode and the intermediate layer, the second EL layer is positioned between the intermediate layer and the second electrode, and the intermediate layer contains an organic compound represented by General Formula (G1) below.

公开(公告)号：US20250034177A1

公开(公告)日：2025-01-30

申请号：US18763512

申请日：2024-07-03

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Harue OSAKA ,  Satoko NUMATA ,  Nobuharu OHSAWA ,  Yuko KUBOTA ,  Kyoko TAKEDA ,  Hiromitsu KIDO

IPC: C07F7/08 ,  C09K11/06 ,  H10K85/40 ,  H10K85/60

Abstract: An organic compound having high heat resistance is provided. An organic compound represented by a general formula (G1) is provided. In the formula, Q represents carbon or silicon; each of R1 and R2 independently represents an alkyl group, a cycloalkyl group, or an aryl group; n represents an integer from 1 to 3; each of α1 to α4 independently represents a phenylene group or a biphenylene group; at least one of R15, R25, R31 and at least one of R45, R55, and R61 represent single bonds and the others thereof represent H, an alkyl group, or an aryl group; and R11 to R14, R21 to R24, R32 to R35, R41 to R44, R51 to R54, and R62 to R65 represent H, an alkyl group, a cycloalkyl group, or an aryl group.

公开(公告)号：US20240215443A1

公开(公告)日：2024-06-27

申请号：US18525103

申请日：2023-11-30

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Yui YOSHIYASU ,  Nobuharu OHSAWA ,  Hiromitsu KIDO ,  Masatoshi TAKABATAKE ,  Satoshi SEO

IPC: H10K85/60 ,  C07D209/86 ,  C07F7/08 ,  C09K11/06 ,  H10K85/40

CPC classification number: H10K85/6572 ,  C07D209/86 ,  C07F7/0812 ,  C09K11/06 ,  H10K85/40 ,  H10K50/11

Abstract: A highly efficient and highly reliable light-emitting device is provided. The light-emitting device includes an organic compound layer between a pair of electrodes. The organic compound layer includes a light-emitting layer, the light-emitting layer includes a first organic compound, a second organic compound, and a light-emitting substance, the first organic compound contains deuterium, and in a PL measurement of a mixed layer of the first organic compound and the second organic compound, a spectrum of an exciplex is observed at room temperature, and a spectrum of the exciplex is not observed at a temperature in a temperature range of 4 K to 80 K, inclusive.

公开(公告)号：US20230027613A1

公开(公告)日：2023-01-26

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

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：US20220029105A1

公开(公告)日：2022-01-27

申请号：US17276289

申请日：2019-09-12

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Tomoka HARA ,  Keito TOSU ,  Hideko YOSHIZUMI ,  Toshiki SASAKI ,  Hiromitsu KIDO ,  Satoshi SEO

IPC: H01L51/00 ,  C07D519/00 ,  C07D491/048 ,  C07D495/04

Abstract: A novel organic compound, a benzofuropyrimidine derivative or a benzothienopyrimidine derivative is provided. The organic compound has a structure in which a benzothienocarbazolyl ring, a benzofurocarbazolyl ring, an indolocarbazolyl ring, or an indenocarbazolyl ring is bonded to the 8-position of a benzofuropyrimidine ring or a benzothienopyrimidine ring directly or through an aromatic hydrocarbon ring. That is, the organic compound is represented by General Formula (G1) below.

公开(公告)号：US20210395271A1

公开(公告)日：2021-12-23

申请号：US17287407

申请日：2019-11-20

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Satoshi SEO ,  Nobuharu OHSAWA ,  Toshiki SASAKI ,  Hiromitsu KIDO

IPC: C07D519/00 ,  H01L51/00

Abstract: An object is to provide a novel composition for an EL device. Another object of one embodiment of the present invention is to provide a composition for an EL device capable of easily manufacturing an EL device with stable characteristics. Another object of one embodiment of the present invention is to provide a composition for an EL device capable of manufacturing an EL device with stable characteristics at low cost. The present inventors have studied a composition for an EL device in which different substances are mixed in advance and which does not cause change in characteristics of the EL device even when evaporation is repeated with use of the composition. As a result, a composition for an EL device in which a difference in the 5% weight loss temperature under a pressure lower than or equal to 0.1 Pa between contained substances is less than or equal to 50° C. is provided.

公开(公告)号：US20210363151A1

公开(公告)日：2021-11-25

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 ,  H01L51/00

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：US20210151695A1

公开(公告)日：2021-05-20

申请号：US17101101

申请日：2020-11-23

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi SEO ,  Hideko INOUE ,  Miki KURIHARA ,  Yui YAMADA ,  Tatsuyoshi TAKAHASHI ,  Hiromitsu KIDO

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

Abstract: A novel organometallic complex with high reliability is provided. A light-emitting element includes an EL layer between a pair of electrodes. The EL layer includes at least a light-emitting layer. The light-emitting layer contains an organometallic complex. The organometallic complex includes a first ligand and a second ligand which are coordinated to a central metal. The HOMO is distributed over the first ligand, and the LUMO is distributed over the second ligand. The first ligand and the second ligand are cyclometalated ligands.

公开(公告)号：US20210151689A1

公开(公告)日：2021-05-20

申请号：US16622489

申请日：2018-06-13

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Tomoka Hara ,  Hideko YOSHIZUMI ,  Hiromitsu KIDO ,  Satoshi SEO

IPC: H01L51/00 ,  C07D491/048

Abstract: A novel compound is provided. A light-emitting element with high emission efficiency and a long lifetime is provided. The compound is an organic compound that includes a benzofuro[3,2-d]pyrimidine or benzothieno[3,2-d]pyrimidine skeleton (General Formula (G0)). The 2-position of the benzofuro[3,2-d]pyrimidine or benzothieno[3,2-d]pyrimidine skeleton has a substituent and the 6- to 9-positions of the skeleton have at least one substituent. Any one of the substituents bonded to the 6- to 9-positions is bonded to the benzofuro[3,2-d]pyrimidine or benzothieno[3,2-d]pyrimidine skeleton via a phenylene group. A light-emitting element including the compound is provided.

公开(公告)号：US20200295267A1

公开(公告)日：2020-09-17

申请号：US16809951

申请日：2020-03-05

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Miki KANAMOTO ,  Hideko INOUE ,  Tatsuyoshi TAKAHASHI ,  Hiromitsu KIDO ,  Satoshi SEO

IPC: H01L51/00 ,  C07D491/048 ,  C09K11/06

Abstract: A compound includes a benzofuropyrimidine skeleton or a benzothienopyrimidine skeleton, a first substituent, and a second substituent. Each of the first substituent and the second substituent includes a furan skeleton, a thiophene skeleton, or a pyrrole skeleton. The first substituent is bonded to a pyrimidine ring included in the benzofuropyrimidine skeleton or a pyrimidine ring included in the benzothienopyrimidine skeleton. The second substituent is bonded to a benzene ring included in the benzofuropyrimidine skeleton or a benzene ring included in the benzothienopyrimidine skeleton. The light-emitting element includes the compound.