公开(公告)号：US20240324309A1

公开(公告)日：2024-09-26

申请号：US18580309

申请日：2022-07-11

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Yoshinobu ASAMI ,  Takahiro FUJIE ,  Ryo TAGASHIRA ,  Sachiko KAWAKAMI ,  Yui YOSHIYASU ,  Tomohiro KUBOTA

IPC: H10K59/122 ,  H10K59/12

CPC classification number: H10K59/122 ,  H10K59/1201

Abstract: A display apparatus with high display quality is provided. A display apparatus includes a first pixel, a second pixel provided adjacent to the first pixel, a first insulating layer, and a second insulating layer over the first insulating layer. The first pixel includes a first pixel electrode, a first EL layer covering the first pixel electrode, a common electrode over the first EL layer. The second pixel includes a second pixel electrode, a second EL layer covering the second pixel electrode, and the common electrode over the second EL layer. The first insulating layer covers part of a side surface and part of a top surface of the first EL layer and part of a side surface and part of a top surface of the second EL layer. At least part of the second insulating layer is provided to be sandwiched between an end portion of the side surface of the first EL layer and an end portion of the side surface of the second EL layer. The second insulating layer contains an acrylic resin, and the second insulating layer has a tapered side surface and a convex shaped top surface. A taper angle of the tapered side surface of the second insulating layer is less than 90°, and the common electrode overlaps with the second insulating layer.

公开(公告)号：US20220285629A1

公开(公告)日：2022-09-08

申请号：US17671198

申请日：2022-02-14

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Yui YOSHIYASU ,  Naoaki HASHIMOTO ,  Tatsuyoshi TAKAHASHI ,  Sachiko KAWAKAMI ,  Satoshi SEO

IPC: H01L51/00 ,  C07D403/10

Abstract: A novel mixed material with improved resistance is provided. The mixed material includes a first heteroaromatic compound and a second heteroaromatic compound, and the first heteroaromatic compound is represented by any one of General Formulae (G1) to (G6). The second heteroaromatic compound is not represented by the same general formula as that of the first heteroaromatic compound.

公开(公告)号：US20250151601A1

公开(公告)日：2025-05-08

申请号：US18684432

申请日：2022-08-09

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Yui YOSHIYASU ,  Kyoko TAKEDA ,  Masatoshi TAKABATAKE ,  Sachiko KAWAKAMI ,  Tsunenori SUZUKI ,  Toshiki SASAKI ,  Naoaki HASHIMOTO ,  Tomoya AOYAMA

IPC: H10K71/40 ,  C07F1/02 ,  C07F1/04 ,  C07F1/08 ,  C07F3/06 ,  C07F5/06 ,  C07F11/00 ,  C07F15/06 ,  H10K50/11 ,  H10K50/15 ,  H10K71/20 ,  H10K85/30 ,  H10K85/60 ,  H10K101/00 ,  H10K101/10 ,  H10K101/25 ,  H10K101/30

Abstract: The heat resistance of an organic semiconductor device including a step of forming an aluminum oxide film over and in contact with an organic semiconductor layer is improved. A heating step is performed after a layer containing an organometallic compound for a mask for an organic semiconductor layer, which is represented by General Formula (G1) below, is provided over the organic semiconductor layer. In General Formula (G1), Ar represents a substituted or unsubstituted aryl group having 6 to 30 carbon atoms or a substituted or unsubstituted heteroaryl group having 1 to 30 carbon atoms, X represents oxygen or sulfur, M represents a metal, n represents an integer greater than or equal to 1 and less than or equal to 5, and n is the same as the valence of the metal M. Note that when n is greater than or equal to 2, a plurality of Ars may be the same or different and Xs may be the same or different. When Ar represents the substituted or unsubstituted heteroaryl group having 1 to 30 carbon atoms, a heteroatom of the heteroaryl group may be coordinated to the metal M.

公开(公告)号：US20240237526A1

公开(公告)日：2024-07-11

申请号：US18539974

申请日：2023-12-14

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Masatoshi TAKABATAKE ,  Sachiko KAWAKAMI ,  Nobuharu OHSAWA ,  Yui YOSHIYASU ,  Takeyoshi WATABE

IPC: H10K85/60 ,  C07D487/04 ,  C09K11/06

CPC classification number: H10K85/6572 ,  C07D487/04 ,  C09K11/06 ,  H10K85/624 ,  C09K2211/1018 ,  H10K50/171

Abstract: An electron-injection organic compound with low solubility in water is provided. An organic compound represented by General Formula (G1) is provided. X represents a group represented by General Formula (X-1) and Y represents a group represented by General Formula (Y-1). Ar represents a heteroaromatic hydrocarbon group having 2 to 30 carbon atoms forming a ring or an aromatic hydrocarbon group having 6 to 30 carbon atoms forming a ring. Each of R1 and R2 independently represents hydrogen or an alkyl group having 1 to 6 carbon atoms, and h represents an integer of 1 to 6. In General Formulae (X-1) and (Y-1), each of R3 to R6 independently represents hydrogen or an alkyl group having 1 to 6 carbon atoms, and m represents an integer of 0 to 4. When m is 0, 1, 3, or 4, n represents an integer of 1 to 5. When m is 2, n represents 1, 2, 4, or 5.

公开(公告)号：US20240138259A1

公开(公告)日：2024-04-25

申请号：US18262154

申请日：2022-01-12

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Yui YOSHIYASU ,  Hideko YOSHIZUMI ,  Nobuharu OHSAWA ,  Satoshi SEO

IPC: H10K85/60 ,  C07D491/22 ,  C09K11/06

CPC classification number: H10K85/6572 ,  C07D491/22 ,  C09K11/06 ,  H10K85/636 ,  H10K85/657 ,  H10K50/11

Abstract: A novel organic compound is to be provided. In other words, a novel organic compound effective in improving element characteristics is to be provided. The organic compound is represented by General Formula (G1) shown below.




In General Formula (G1) above, at least one or two of A1 to A4 represent nitrogen, and the others represent carbon. At least one or two of A5 to A8 represent nitrogen, and the others represent carbon. In addition, B1 and B2 each independently represent hydrogen, an alkyl group having 1 to 6 carbon atoms, or a cyano group. In addition, Htuni1 and Htuni2 each independently represent a hole-transport skeleton.

公开(公告)号：US20240130225A1

公开(公告)日：2024-04-18

申请号：US18262595

申请日：2022-01-21

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Nobuharu OHSAWA ,  Satoshi SEO ,  Yui YOSHIYASU ,  Hideko YOSHIZUMI

IPC: H10K85/60 ,  C09K11/06 ,  H10K85/30

CPC classification number: H10K85/633 ,  C09K11/06 ,  H10K85/342 ,  H10K85/636 ,  H10K85/654 ,  H10K85/6572 ,  H10K85/6576 ,  H10K50/11

Abstract: A novel light-emitting device that is highly convenient, useful, or reliable is provided. The light-emitting device includes a first electrode, a second electrode, and a first layer. The first layer is positioned between the first electrode and the second electrode. The first layer includes a light-emitting material, a first organic compound, and a first material. The light-emitting material has a function of emitting fluorescent light. The absorption spectrum of the light-emitting material has the longest-wavelength edge at a first wavelength. The first organic compound has a function of converting triplet excitation energy into light emission. The spectrum of the emitted light has the shortest-wavelength edge at a second wavelength. The second wavelength is positioned at a wavelength shorter than the first wavelength. The first organic compound includes a first substituent R1. The first substituent R1 is any of an alkyl group, a substituted or unsubstituted cycloalkyl group, and a trialkylsilyl group. The first material has a function of emitting delayed fluorescent light at room temperature. The difference between the HOMO level and the LUMO level of the first material is smaller than the difference between the HOMO level and the LUMO level of the first organic compound.

公开(公告)号：US20250101027A1

公开(公告)日：2025-03-27

申请号：US18885879

申请日：2024-09-16

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Yuko KUBOTA ,  Yui YOSHIYASU ,  Sachiko KAWAKAMI ,  Nobuharu OHSAWA ,  Shinya FUKUZAKI ,  Toshiki SASAKI

IPC: C07D487/04 ,  H10K50/17 ,  H10K85/60

Abstract: An organic compound with an electron-transport property and low water solubility is provided. An organic compound represented by General Formula (G1-1) below is provided. At least any one of R2 to R9 is a group represented by General Formula (R-1) or (R-2); each of the other groups of R2 to R9 independently represents hydrogen, an alkyl group having 1 to 10 carbon atoms, a cycloalkyl group having 3 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms, a substituted or unsubstituted cyclic secondary amino group having 2 to 10 carbon atoms, a substituted or unsubstituted aryl group having 6 to 30 carbon atoms, or a substituted or unsubstituted heteroaryl group having 1 to 30 carbon atoms; α1 represents a substituted or unsubstituted arylene group having 6 to 30 carbon atoms; n represents 1 or 2; R11 to R26 each independently represent hydrogen (including deuterium) or an alkyl group having 1 to 10 carbon atoms; and p and q each independently represent 0 or 1.

公开(公告)号：US20240315066A1

公开(公告)日：2024-09-19

申请号：US18276508

申请日：2022-01-28

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Yui YOSHIYASU ,  Naoaki HASHIMOTO ,  Tatsuyoshi TAKAHASHI ,  Sachiko KAWAKAMI ,  Satoshi SEO

IPC: H10K50/16 ,  H10K50/844 ,  H10K85/30 ,  H10K85/60

CPC classification number: H10K50/166 ,  H10K50/844 ,  H10K85/342 ,  H10K85/615 ,  H10K85/626 ,  H10K85/633 ,  H10K85/636 ,  H10K85/6572

Abstract: A light-emitting device having high heat resistance in a manufacturing process is provided. Provided is a light-emitting device which includes a second electrode over a first electrode with a first EL layer therebetween and in which the first EL layer includes at least a first light-emitting layer; a second EL layer is over the first EL layer; the second EL layer includes at least a second light-emitting layer, a first electron-transport layer, and a second electron-transport layer; the first electron-transport layer is over the second light-emitting layer; an insulating layer is in contact with the side surface of the first light-emitting layer, the side surface of the second light-emitting layer, and the side surface of the first electron-transport layer; the second electron-transport layer is over the first electron-transport layer; the insulating layer is positioned between the second electron-transport layer and the side surface of the first light-emitting layer, the side surface of the second light-emitting layer, and the side surface of the first electron-transport layer; and the first electron-transport layer includes a heteroaromatic compound including at least one heteroaromatic ring and an organic compound different from the heteroaromatic compound.

公开(公告)号：US20240174706A1

公开(公告)日：2024-05-30

申请号：US18381473

申请日：2023-10-18

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Tomoya YAMAGUCHI ,  Hideko YOSHIZUMI ,  Yui YOSHIYASU ,  Masatoshi TAKABATAKE ,  Hiroki MURAKAMI ,  Nobuharu OHSAWA ,  Hiromitsu KIDO ,  Satoshi SEO

IPC: C07F15/00 ,  C09K11/06 ,  H10K85/30 ,  H10K85/60

CPC classification number: C07F15/0086 ,  C09K11/06 ,  H10K85/346 ,  H10K85/654 ,  H10K85/6572

Abstract: A novel organometallic complex that is highly convenient, useful, or reliable, and a light-emitting device are provided. The organometallic complex is represented by General Formula (G2). In General Formula (G2), each of R1 to R6, R8 to R22, and R31 to R34 independently represents hydrogen (including deuterium), an alkyl group having 1 to 10 carbon atoms, or a substituted or unsubstituted aryl group having 6 to 18 carbon atoms, at least one of R31 to R34 represents an alkyl group having 1 to 10 carbon atoms or a substituted or unsubstituted aryl group having 6 to 18 carbon atoms, and n is an integer of 1 to 4.

公开(公告)号：US20240147835A1

公开(公告)日：2024-05-02

申请号：US18370219

申请日：2023-09-19

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Tomoya YAMAGUCHI ,  Hideko YOSHIZUMI ,  Yui YOSHIYASU ,  Masatoshi TAKABATAKE ,  Hiroki MURAKAMI ,  Nobuharu OHSAWA ,  Hiromitsu KIDO

IPC: H10K85/30 ,  C07F15/00 ,  C09K11/06

CPC classification number: H10K85/346 ,  C07F15/0086 ,  C09K11/06 ,  H10K50/12

Abstract: To provide a novel organometallic complex and a novel light-emitting device that are useful or reliable. The organometallic complex includes platinum (Pt), a cyano group, and a phenyl group that has two alkyl groups at the ortho-positions. The light-emitting device includes an organic compound layer held between a pair of electrodes; the organic compound layer includes a light-emitting layer; the light-emitting layer contains an organic compound and the organometallic complex; the organometallic complex includes platinum (Pt), a cyano group, and a phenyl group that has two alkyl groups at the ortho-positions; and the difference between the LUMO level of the organic compound and the HOMO level of the organometallic complex is greater than or equal to 2.5 eV and less than or equal to 3.0 eV.