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：US11800734B2

公开(公告)日：2023-10-24

申请号：US17969363

申请日：2022-10-19

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Takeyoshi Watabe ,  Tomohiro Kubota ,  Airi Ueda ,  Satoshi Seo ,  Nobuharu Ohsawa ,  Yuko Kubota

IPC: H01L51/50 ,  H10K50/115 ,  H10K50/16 ,  H10K50/17 ,  H10K85/60

CPC classification number: H10K50/115 ,  H10K50/16 ,  H10K50/17 ,  H10K85/626

Abstract: A light-emitting apparatus with low power consumption is provided. A light-emitting apparatus including a first light-emitting device and a first color conversion layer. The first light-emitting device includes an anode, a cathode, and an EL layer positioned between the anode and the cathode. The EL layer includes a layer including a material with a refractive index lower than or equal to 1.75 at 467 nm. The first color conversion layer includes a first substance capable of emission by absorbing light. Light emitted from the first light-emitting device enters the first color conversion layer.

公开(公告)号：US20220320470A1

公开(公告)日：2022-10-06

申请号：US17695982

申请日：2022-03-16

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takeyoshi Watabe ,  Yuta Kawano ,  Airi Ueda ,  Nobuharu Ohsawa ,  Satoshi Seo

IPC: H01L51/52

Abstract: A light-emitting device with high emission efficiency is provided. The light-emitting device includes an EL layer and a light-transmitting electrode. The EL layer includes a light-emitting layer and a low refractive index layer. The low refractive index layer is positioned between the light-emitting layer and the light-transmitting electrode. A cap layer is in contact with a surface of the light-transmitting electrode on the side opposite to the EL layer. The cap layer includes a high refractive index material having an ordinary refractive index of higher than or equal to 1.90 and lower than or equal to 2.40 and an ordinary extinction coefficient of higher than or equal to 0 and lower than or equal to 0.01. The low refractive index layer includes a low refractive index material having an ordinary refractive index of higher than or equal to 1.60 and lower than or equal to 1.70.

公开(公告)号：US20210336151A1

公开(公告)日：2021-10-28

申请号：US17239916

申请日：2021-04-26

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Keito Tosu ,  Yuta Kawano ,  Hiroshi Kadoma ,  Harue Osaka ,  Ryo Narukawa ,  Airi Ueda ,  Takeyoshi Watabe ,  Nobuharu Ohsawa ,  Satoshi Seo

IPC: H01L51/00 ,  C09K11/06 ,  C07D251/24 ,  C07D239/26 ,  C07D401/10 ,  C07D401/14

Abstract: A light-emitting device material with a low refractive index is provided. The light-emitting device material contains an organic compound which has a pyridine skeleton, a diazine skeleton, or a triazine skeleton and in which the proportion of carbon atoms forming a bond by sp3 hybrid orbitals is within a certain range. The light-emitting device material contains an organic compound including at least one six-membered heteroaromatic ring having 1 to 3 nitrogen atoms and a plurality of aromatic hydrocarbon rings each having 6 to 14 carbon atoms in a ring. At least two of the plurality of aromatic hydrocarbon rings are benzene rings. The organic compound has a plurality of hydrocarbon groups forming a bond by the sp3 hybrid orbitals. The ordinary refractive index of a layer containing the organic compound with respect to light with a wavelength in the range from 455 nm to 465 nm is 1.5 to 1.75.

公开(公告)号：US20240224575A1

公开(公告)日：2024-07-04

申请号：US18436886

申请日：2024-02-08

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Takeyoshi WATABE ,  Airi Ueda ,  Nobuharu Ohsawa ,  Satoshi Seo

IPC: H10K50/19 ,  G06V40/13 ,  H10K50/818 ,  H10K50/828 ,  H10K50/852 ,  H10K71/00 ,  H10K85/30 ,  H10K102/00

CPC classification number: H10K50/19 ,  H10K50/852 ,  H10K85/342 ,  G06V40/1318 ,  H10K50/818 ,  H10K50/828 ,  H10K71/00 ,  H10K2102/351

Abstract: A light-emitting device is provided. The light-emitting device includes an intermediate layer, a first light-emitting unit, and a second light-emitting unit. The intermediate layer includes a region interposed between the first light-emitting unit and the second light-emitting unit. The intermediate layer has a function of supplying an electron to one of the first light-emitting unit and the second light-emitting unit and supplying a hole to the other. The first light-emitting unit includes a first light-emitting layer, the first light-emitting layer includes a first light-emitting material, the second light-emitting unit includes a second light-emitting layer, the second light-emitting layer includes a second light-emitting material, the second light-emitting layer has a first distance from the first light-emitting layer, and the first distance is longer than or equal to 5 nm and shorter than or equal to 65 nm.

公开(公告)号：US20220328763A1

公开(公告)日：2022-10-13

申请号：US17696019

申请日：2022-03-16

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Tomohiro Kubota ,  Takao Tosu ,  Takeyoshi Watabe ,  Airi Ueda ,  Yuta Kawano ,  Nobuharu Ohsawa ,  Satoshi Seo

IPC: H01L51/00 ,  C07C211/61 ,  C09K11/06

Abstract: An organic compound having a hole-transport property and a low refractive index is provided. An organic compound represented by General Formula (G1) shown below is provided. In General Formula (G1), Ar1 represents a substituted or unsubstituted arylene group having 6 to 13 carbon atoms in a ring, n represents an integer of 0 or 1, and Ar2 represents an aryl group having 6 to 10 carbon atoms in a ring and includes at least one branched-chain or cyclic alkyl group having 3 to 12 carbon atoms. The total number of carbon atoms of the branched-chain or cyclic alkyl group in Ar2 is more than or equal to 6. R1 to R4 each independently represent an alkyl group having 1 to 6 carbon atoms. R11 to R14 and R21 to R24 each independently represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms. Any one of R15 to R18 and any one of R25 to R28 each represent a bond directly bonded to a nitrogen atom, and the others each independently represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms.

公开(公告)号：US20220223813A1

公开(公告)日：2022-07-14

申请号：US17613155

申请日：2020-05-18

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Airi Ueda ,  Takeyoshi WATABE ,  Nobuharu OHSAWA ,  Satoshi SEO

IPC: H01L51/50

Abstract: A light-emitting device that emits both near-infrared light and visible light is provided. The light-emitting device includes a light-emitting organic compound and a host material in a light-emitting layer. The maximum peak wavelength in an emission spectrum of the light-emitting device is greater than or equal to 750 nm and less than or equal to 900 nm, the energy of the maximum peak in the emission spectrum of the host material is higher than the energy of a peak of a lowest-energy-side absorption band in an absorption spectrum of the light-emitting organic compound. The light-emitting device has a function of emitting both visible light and near-infrared light.

公开(公告)号：US12225812B2

公开(公告)日：2025-02-11

申请号：US17696019

申请日：2022-03-16

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Tomohiro Kubota ,  Takao Tosu ,  Takeyoshi Watabe ,  Airi Ueda ,  Yuta Kawano ,  Nobuharu Ohsawa ,  Satoshi Seo

IPC: H01L51/00 ,  C07C211/61 ,  C09K11/06 ,  H10K85/60 ,  H10K50/15 ,  H10K50/17 ,  H10K59/12 ,  H10K101/30

Abstract: An organic compound having a hole-transport property and a low refractive index is provided. An organic compound represented by General Formula (G1) shown below is provided. In General Formula (G1), Ar1 represents a substituted or unsubstituted arylene group having 6 to 13 carbon atoms in a ring, n represents an integer of 0 or 1, and Ar2 represents an aryl group having 6 to 10 carbon atoms in a ring and includes at least one branched-chain or cyclic alkyl group having 3 to 12 carbon atoms. The total number of carbon atoms of the branched-chain or cyclic alkyl group in Ar2 is more than or equal to 6. R1 to R4 each independently represent an alkyl group having 1 to 6 carbon atoms. R11 to R14 and R21 to R24 each independently represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms. Any one of R15 to R18 and any one of R25 to R28 each represent a bond directly bonded to a nitrogen atom, and the others each independently represent a hydrogen atom or an alkyl group having 1 to 4 carbon atoms.

公开(公告)号：US12139446B2

公开(公告)日：2024-11-12

申请号：US17213709

申请日：2021-03-26

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Satoshi Seo ,  Nobuharu Ohsawa ,  Tomohiro Kubota ,  Takeyoshi Watabe ,  Airi Ueda ,  Yasushi Kitano ,  Takao Tosu

IPC: C07C211/56 ,  H10K50/15 ,  H10K50/17 ,  H10K85/60

Abstract: To provide a novel arylamine compound with a low refractive index. The provided arylamine compound includes at least one aromatic group. The aromatic group includes a first benzene ring, a second benzene ring, a third benzene ring, and at least three alkyl groups. The first benzene ring, the second benzene ring, and the third benzene ring are directly bonded in this order. The first benzene ring is bonded to nitrogen of amine. The first benzene ring may further include a substituted or unsubstituted phenyl group. The second benzene ring or the third benzene ring may further include an alkylated phenyl group. Each of first positions and third positions of two or more of the first to third benzene rings is independently bonded to another benzene ring, a benzene ring of the alkylated phenyl group, any of the at least three alkyl groups, or the nitrogen of the amine.

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.