公开(公告)号：US20240409808A1

公开(公告)日：2024-12-12

申请号：US18672209

申请日：2024-05-23

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Sachiko KAWAKAMI ,  Kazuki KAJIYAMA

IPC: C09K11/06 ,  H10K50/11 ,  H10K85/60

Abstract: To provide a novel organic compound that is highly convenient, useful, or reliable. General Formula (G2), X represents a sulfur atom or an oxygen atom; R1, R2, R6 to R9, R20 to R26, R30 to R34, R40 to R43, R103 to R105, R135, and R136 each independently represent hydrogen (including deuterium), a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted cycloalkyl group having 3 to 10 carbon atoms, a substituted or unsubstituted aryl group having 10 to 30 carbon atoms, a substituted or unsubstituted dibenzothiophenyl group, a substituted or unsubstituted dibenzofuranyl group; n represents an integer of 1 to 4, when n is 2 or more, two or more R40s may be the same as or different from each other, and the same applies to two or more R41s to R43s.

公开(公告)号：US20240334747A1

公开(公告)日：2024-10-03

申请号：US18580254

申请日：2022-07-15

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Hayato YAMAWAKI ,  Sachiko KAWAKAMI ,  Eriko AOYAMA ,  Miki KURIHARA ,  Yoshinobu ASAMI ,  Takahiro FUJIE ,  Ryo TAGASHIRA

IPC: H10K59/122 ,  H10K59/12

CPC classification number: H10K59/122 ,  H10K59/1201

Abstract: A display apparatus-including a first pixel, a second pixel adjacent to the first pixel, a first insulating layer, and a second insulating layer over the first insulating layer is provided. The first pixel includes a first pixel electrode, a first EL layer covering the first pixel electrode, a third insulating layer over the first EL layer, and a common electrode over the first EL layer. The common electrode is in contact with part of the top surface of the first EL layer. The first EL layer contains a first organic compound. The amount of an organic compound that includes an oxide of the first organic compound or a partial structure of the first organic compound and is contained in the first EL layer is greater than 0 and less than or equal to 1/10 of an amount of the first organic compound contained in the first EL layer.

公开(公告)号：US20240292701A1

公开(公告)日：2024-08-29

申请号：US18560710

申请日：2022-05-13

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Takayuki IKEDA ,  Satoshi SEO ,  Sachiko KAWAKAMI ,  Daiki NAKAMURA ,  Shunpei YAMAZAKI

IPC: H10K59/35 ,  H10K50/19 ,  H10K59/80

CPC classification number: H10K59/353 ,  H10K50/19 ,  H10K59/80518 ,  H10K59/879

Abstract: A display device with high display quality is provided. The display device includes a first subpixel including a first light-emitting device and a first coloring layer transmitting blue light in a display portion. The first light-emitting device includes a first pixel electrode, a first EL layer, and a common electrode. The first EL layer includes a first light-emitting material emitting blue light and a second light-emitting material emitting light with a longer wavelength than blue light. The first EL layer includes a first light-emitting unit over the first pixel electrode, a charge-generation layer over the first light-emitting unit, and a second light-emitting unit over the charge-generation layer. In an emission spectrum of blue display by the display portion at a low luminance, the intensity of a first emission peak at a wavelength longer than or equal to 400 nm and shorter than 500 nm is assumed to be 1; in this case, the intensity of a second emission peak at a wavelength longer than or equal to 500 nm and shorter than or equal to 700 nm in the emission spectrum is lower than or equal to 0.5.

公开(公告)号：US20240276833A1

公开(公告)日：2024-08-15

申请号：US18566876

申请日：2022-05-25

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shunpei YAMAZAKI ,  Takayuki IKEDA ,  Satoshi SEO ,  Sachiko KAWAKAMI ,  Daiki NAKAMURA

IPC: H10K59/00 ,  H10K59/35 ,  H10K59/80

CPC classification number: H10K59/771 ,  H10K59/353 ,  H10K59/80518 ,  H10K59/878

Abstract: A display device with a high level of immersion or realistic sensation is provided. The display device includes a display portion capable of full-color display, a communication portion having a wireless communication function, and a wearing portion having a function of being worn on a head. The display portion includes a subpixel including a light-emitting device and a coloring layer transmitting blue light. The light-emitting device contains a first light-emitting material emitting blue light and a second light-emitting material emitting light having a longer wavelength than blue light. The light-emitting device includes a first light-emitting unit, a charge-generation layer, and a second light-emitting unit that are stacked in this order. In an emission spectrum obtained with the display portion performing blue display at low luminance, when the intensity of a first emission peak at a wavelength higher than or equal to 400 nm and lower than 500 nm is regarded as 1, the intensity of a second emission peak at a wavelength higher than or equal to 500 nm and lower than or equal to 700 nm in the emission spectrum is lower than or equal to 0.5.

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：US20230416201A1

公开(公告)日：2023-12-28

申请号：US18206968

申请日：2023-06-07

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Anna TADA ,  Kyoko TAKEDA ,  Sachiko KAWAKAMI ,  Hiromitsu KIDO

IPC: C07D209/86 ,  H10K85/60 ,  H10K50/11

CPC classification number: C07D209/86 ,  C07B2200/05 ,  H10K50/11 ,  H10K85/6572

Abstract: A novel organic compound that is highly convenient, useful, or reliable is provided. The organic compound is represented by General Formula (G1). Note that R1 to R4 each independently represent hydrogen (including deuterium), a substituted or unsubstituted alkyl group having 1 to 6 carbon atoms, or a substituted or unsubstituted cycloalkyl group having 3 to 10 carbon atoms; Ar1 is represented by General Formula (g1-1) below; Ar2 represents a substituted or unsubstituted aryl group having 10 to 30 carbon atoms or a substituted or unsubstituted heteroaryl group having 2 to 30 carbon atoms; Ar3 is represented by General Formula (g1-2) below; α represents a substituted or unsubstituted arylene group having 6 to 30 carbon atoms; and n represents an integer of 0 to 4.

公开(公告)号：US20230200198A1

公开(公告)日：2023-06-22

申请号：US18079994

申请日：2022-12-13

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Sachiko KAWAKAMI ,  Nobuharu OHSAWA ,  Yuji IWAKI ,  Ryota HODO ,  Kentaro SUGAYA ,  Shinya SASAGAWA ,  Takahiro FUJIE ,  Yoshikazu HIURA ,  Toshiki SASAKI ,  Takeyoshi WATABE ,  Kunihiko SUZUKI

IPC: H10K71/00 ,  H10K85/60

CPC classification number: H01L51/56 ,  H01L51/0072 ,  H01L51/5092

Abstract: To provide a light-emitting element in which an organic compound layer can be processed at once by a photolithography technique. A first electrode and an organic compound layer including an electron-injection layer are formed over an insulating surface. The electron-injection layer is the outermost layer of the organic compound layer and contains an organic compound having a basic skeleton and an acid dissociation constant pKa of greater than or equal to 1. A sacrificial layer and a mask are formed over the electron-injection layer and the sacrificial layer is processed into an island shape using the mask. With use of the island-shaped sacrificial layer as a mask, the organic compound layer is processed into an island shape to cover the first electrode. Part of the island-shaped sacrificial layer is removed with an acidic chemical solution to expose the electron-injection layer. A second electrode is formed to cover the electron-injection layer.

公开(公告)号：US20230138085A1

公开(公告)日：2023-05-04

申请号：US17907878

申请日：2021-03-12

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Sachiko KAWAKAMI ,  Naoaki HASHIMOTO ,  Satoshi SEO

IPC: H10K85/30

Abstract: A light-emitting device with a long lifetime is provided. A light-emitting device with a low driving voltage is provided. In the light-emitting device, an electron-transport layer includes an organometallic complex of an alkali metal and an organic compound having an electron-transport property; the organometallic complex and the organic compound form an exciplex in combination; a value (eV) obtained by converting into energy a peak wavelength of an emission spectrum of the exciplex formed with the organometallic complex and the organic compound having a mass ratio of 1:1 is smaller than a difference (eV) between a HOMO level of the organometallic complex and a LUMO level of the organic compound by greater than or equal to 0.1 eV.

公开(公告)号：US20230062265A1

公开(公告)日：2023-03-02

申请号：US17841930

申请日：2022-06-16

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Yasuhiro NIIKURA ,  Daisuke KUBOTA ,  Taisuke KAMADA ,  Sachiko KAWAKAMI ,  Anna TADA ,  Satoshi SEO

IPC: C07C211/54 ,  H01L27/28 ,  C07D209/82 ,  C07D307/91 ,  C07D405/12 ,  C07D409/12 ,  C07D333/76 ,  C07C15/38 ,  C07C15/20 ,  C07C15/28 ,  C07D495/22 ,  C07D495/14 ,  C07D495/04 ,  C07D333/18 ,  C07D471/06 ,  C07D251/24 ,  C07D403/14 ,  C07D401/10 ,  C07D235/08 ,  C07D519/00 ,  C07D409/10 ,  C07D403/10 ,  C07D491/048 ,  C07F7/22 ,  C07F15/00 ,  C07D413/10 ,  C07D405/04 ,  C07D221/20 ,  C07D409/14 ,  C07D219/16 ,  C07D471/14 ,  H01L51/00

Abstract: A light-receiving device in which an increase in driving voltage is inhibited is provided. Any of the following light-receiving devices is provided: a light-receiving device that includes a light-receiving layer between a pair of electrodes and in which the light-receiving layer includes an active layer, a buffer layer, and an electron-transport layer, the buffer layer is between the active layer and the electron-transport layer and is in contact with the active layer, and the buffer layer includes an organic compound having an electron-withdrawing group; a light-receiving device that includes a light-receiving layer between a pair of electrodes and in which the light-receiving layer includes an active layer, a buffer layer, and an electron-transport layer, the buffer layer is between the active layer and the electron-transport layer and is in contact with the active layer, and the buffer layer includes a heteroaromatic compound having an electron-withdrawing group.

公开(公告)号：US20210384440A1

公开(公告)日：2021-12-09

申请号：US17401948

申请日：2021-08-13

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Sachiko KAWAKAMI ,  Tsunenori SUZUKI ,  Yusuke TAKITA ,  Satoshi SEO

IPC: H01L51/00 ,  C07D307/77 ,  C09K11/06

Abstract: A novel light-emitting element is provided. A light-emitting element with a long lifetime is provided. A light-emitting element with high emission efficiency is provided. A novel organic compound is provided. A novel organic compound having a hole-transport property is provided. A novel hole-transport material is provided. A hole-transport material including an organic compound having a substituted or unsubstituted benzonaphthofuran skeleton and a substituted or unsubstituted amine skeleton is provided. A light-emitting element using the hole-transport material is provided. An organic compound in which an amine skeleton including two aromatic hydrocarbon groups having 6 to 60 carbon atoms is bonded to the 6- or 8-position of the benzonaphthofuran skeleton is provided.