公开(公告)号：US20230422548A1

公开(公告)日：2023-12-28

申请号：US18210953

申请日：2023-06-16

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Takeyoshi WATABE ,  Takuya ISHIMOTO ,  Nobuharu OHSAWA ,  Satoshi SEO

IPC: H10K50/856 ,  H10K50/858

CPC classification number: H10K50/856 ,  H10K50/858 ,  H10K2102/351

Abstract: A novel light-emitting device that is highly convenient, useful, or reliable is provided. The light-emitting device includes a first reflective film, first to fourth layers, and a first electrode. The first electrode overlaps with the first reflective film. The fourth layer is positioned between the first electrode and the first reflective film, and contains a first light-emitting material, which has an emission spectrum having a peak at a first wavelength. The third layer is positioned between the fourth layer and the first reflective film, and contains an organic compound having an ordinary refractive index of 1.45 to 1.75. The second layer is positioned between the third layer and the first reflective film, has a property of transmitting light with the first wavelength, includes a second electrode, and contains an element with an atomic number of 21 to 83 at 5 atomic % or higher. The first layer is positioned between the second layer and the first reflective film, has a property of transmitting light with the first wavelength, and contains an element with an atomic number of 1 to 20 at 95 atomic % or higher. The first reflective film reflects light with the first wavelength.

公开(公告)号：US20250105291A1

公开(公告)日：2025-03-27

申请号：US18773889

申请日：2024-07-16

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Takuya ISHIMOTO ,  Shotaro MURATSUBAKI ,  Naoto OKUZAWA ,  Tatsuyoshi TAKAHASHI ,  Masayuki KIMURA ,  Kazutaka KURIKI

IPC: H01M4/587 ,  H01M4/02 ,  H01M4/525 ,  H01M10/0525 ,  H01M10/0567 ,  H01M10/0568 ,  H01M10/0569

Abstract: To provide a battery having excellent charge-discharge characteristics even in a low-temperature environment. The battery includes a positive electrode, a negative electrode, an electrolyte solution, and a separator. The electrolyte solution and the separator are included between the positive electrode and the negative electrode; the negative electrode includes a carbon material; and the electrolyte solution includes a lithium salt, a potassium salt, a fluorinated cyclic carbonate, a fluorinated linear carbonate, and at least one kind of anion. The carbon material includes graphite; the lithium salt includes LiPF6; the potassium salt includes KFSI; the fluorinated cyclic carbonate includes fluoroethylene carbonate; and the fluorinated linear carbonate includes methyl trifluoropropionate.

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：US20230309385A1

公开(公告)日：2023-09-28

申请号：US17923834

申请日：2021-05-06

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Kyoko TAKEDA ,  Kunihiko SUZUKI ,  Harue OSAKA ,  Satoshi SEO ,  Tsunenori SUZUKI ,  Takuya ISHIMOTO ,  Naoaki HASHIMOTO

IPC: H10K85/60 ,  C07D493/14 ,  C09K11/06

CPC classification number: H10K85/636 ,  C07D493/14 ,  C09K11/06 ,  C09K2211/1018 ,  H10K59/12 ,  H10K85/6572 ,  H10K85/6574

Abstract: A novel organic compound is provided. Alternatively, an organic compound that emits light with favorable chromaticity is provided. Alternatively, an organic compound that emits blue light with favorable chromaticity is provided. Alternatively, a light-emitting element with favorable emission efficiency is provided. Alternatively, an organic compound with an excellent carrier-transport property is provided. The organic compound includes any of a substituted or unsubstituted dibenzofurobisbenzofuran skeleton, a substituted or unsubstituted dibenzothienobisbenzothiophene skeleton, a substituted or unsubstituted benzobisbenzothienobenzofuran skeleton, and a substituted or unsubstituted dibenzothienobisbenzofuran skeleton and one or two amino groups. In the organic compound, the amino group includes a substituted or unsubstituted heteroaryl group and any of a substituted or unsubstituted aromatic hydrocarbon group having 6 to 25 carbon atoms and a substituted or unsubstituted heteroaryl group having 5 to 25 carbon atoms.

公开(公告)号：US20230232707A1

公开(公告)日：2023-07-20

申请号：US18150264

申请日：2023-01-05

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takeyoshi WATABE ,  Takuya ISHIMOTO ,  Nobuharu OHSAWA

IPC: H10K85/60 ,  H10K50/19 ,  H10K85/30

CPC classification number: H10K85/633 ,  H10K50/19 ,  H10K85/636 ,  H10K85/6576 ,  H10K85/657 ,  H10K85/6572 ,  H10K85/615 ,  H10K85/342 ,  H10K85/626 ,  H10K85/654 ,  H10K85/371 ,  H10K50/11

Abstract: A novel display apparatus that is highly convenient, useful, or reliable is provided. The display apparatus includes a first electrode, a second electrode, a first unit, a second unit, and a first intermediate layer; the first unit is located between the second electrode and the first electrode; and the first unit contains a first light-emitting material EM1. The second unit is located between the second electrode and the first unit and contains a second light-emitting material EM2. The first intermediate layer is located between the second unit and the first unit. The first intermediate layer includes a first layer and a second layer; the first layer is located between the second unit and the second layer; the first layer contains an organic compound having a halogen group or a cyano group or a transition metal oxide; and the second layer contains a first organic compound AM2 having an electron-accepting property, a second organic compound DM having an electron-donating property, and a third organic compound BM having basicity.