公开(公告)号：US20250008832A1

公开(公告)日：2025-01-02

申请号：US18704411

申请日：2022-10-17

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hayato YAMAWAKI ,  Sachiko KAWAKAMI ,  Naoaki HASHIMOTO ,  Eriko AOYAMA ,  Yasuhiro NIIKURA

IPC: H10K71/20 ,  H10K50/13 ,  H10K71/00 ,  H10K71/40 ,  H10K71/60 ,  H10K85/20 ,  H10K85/60

Abstract: A method for removing oxygen from an oxygen adduct of anthracene, which is generated by irradiation with ultraviolet rays, is provided. Alternatively a method for manufacturing an electronic device or a display device with favorable reliability is provided. A method for manufacturing an electronic device, including a step of irradiating a layer including an organic compound including an anthracene structure with ultraviolet rays at an energy density higher than or equal to 1 mJ/cm2 and lower than or equal to 1000 mJ/cm2 in an atmosphere where oxygen exists and a step of performing heating at a temperature higher than or equal to 80° C. in an atmosphere with an oxygen concentration lower than or equal to 300 ppm is provided.

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：US20240349603A1

公开(公告)日：2024-10-17

申请号：US18626450

申请日：2024-04-04

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Eriko AOYAMA ,  Hayato YAMAWAKI ,  Hiromi SEO ,  Toshiki SASAKI ,  Akira NAGASAKA ,  Nobuharu OHSAWA ,  Sachiko KAWAKAMI ,  Harue OSAKA

IPC: H10K85/60 ,  H10K50/17 ,  H10K50/19 ,  H10K101/50

CPC classification number: H10K85/6572 ,  H10K50/19 ,  H10K85/624 ,  H10K85/654 ,  H10K50/171 ,  H10K2101/50

Abstract: A light-emitting device with high efficiency and high reliability. The light-emitting device includes an organic compound layer between a first electrode and a second electrode. The organic compound layer includes a first light-emitting unit, a second light-emitting unit, and an intermediate layer. The intermediate layer is positioned between the first light-emitting unit and the second light-emitting unit. The intermediate layer includes an organic compound. A peak current of electron oxidation is detected and a peak current of electron reduction is not detected in the case where the organic compound is measured by CV at a scan rate greater than or equal to 1 V/s and less than or equal to 100 V/s.

公开(公告)号：US20230329105A1

公开(公告)日：2023-10-12

申请号：US18130684

申请日：2023-04-04

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Satoko NUMATA ,  Harue OSAKA ,  Sachiko KAWAKAMI ,  Takashi SHINGU ,  Anna TADA ,  Yui YOSHIYASU ,  Yasuhiro NIIKURA ,  Eriko AOYAMA ,  Naoaki HASHIMOTO ,  Satoshi SEO

IPC: H10K85/60 ,  H10K85/30

CPC classification number: H10K85/6572 ,  H10K85/633 ,  H10K50/16 ,  H10K85/342 ,  H10K85/6574 ,  H10K85/636

Abstract: An organic semiconductor device that can achieve high resolution and favorable reliability is provided. The organic semiconductor device is one of a plurality of light-emitting devices formed over an insulating layer, which includes a first electrode, a second electrode, and an organic compound layer. The organic compound layer is positioned between the first electrode and the second electrode. The organic compound layer includes a layer containing a first compound. When differential scanning calorimetry is performed on the first compound in such a manner that a cooling step is performed from the state in which the first compound is melted in a first heating step and a second heating step is successively performed, an exothermic peak is not observed in the cooling step and an exothermic peak and a melting point peak are not observed in the second heating step.

公开(公告)号：US20240008301A1

公开(公告)日：2024-01-04

申请号：US18214844

申请日：2023-06-27

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Toshiki Sasaki ,  Hiromitsu KIDO ,  Tsunenori SUZUKI ,  Nobuharu OHSAWA ,  Hideko YOSHIZUMI ,  Satoshi SEO ,  Satoko NUMATA ,  Eriko AOYAMA ,  Yui YOSHIYASU

IPC: H10K50/13 ,  H10K50/16 ,  H10K50/15 ,  H10K85/60 ,  C09K11/06

CPC classification number: H10K50/13 ,  H10K50/16 ,  H10K50/15 ,  H10K85/649 ,  C09K11/06 ,  H10K2101/27

Abstract: A green phosphorescent light-emitting device with a long lifetime is provided. The light-emitting device includes a first electrode, a second electrode, and a light-emitting layer. The light-emitting layer is between the first electrode and the second electrode. The light-emitting layer includes a first organic compound, a second organic compound, and a phosphorescent light-emitting substance. The first organic compound includes a heteroaromatic ring skeleton and an aromatic hydrocarbon group. The second organic compound includes a bicarbazole skeleton. The lowest triplet excited level of the first organic compound is derived from only the aromatic hydrocarbon group. The energy of the lowest triplet excited level of the second organic compound is higher than or equal to 2.20 eV and lower than or equal to 2.65 eV.