公开(公告)号：US20240138183A1

公开(公告)日：2024-04-25

申请号：US18373324

申请日：2023-09-27

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Yasutaka NAKAZAWA ,  Takayuki OHIDE ,  Naoto GOTO ,  Hiroki ADACHI ,  Satoru IDOJIRI ,  Hayato YAMAWAKI ,  Kenichi OKAZAKI ,  Sachiko KAWAKAMI

IPC: H10K59/12 ,  H10K59/122

CPC classification number: H10K59/1201 ,  H10K59/122 ,  H10K85/636

Abstract: A method for manufacturing a novel display apparatus is provided. The method includes a first step of forming a first electrode, a second electrode, and a first gap over an insulating film, a second step of forming a first film over the second electrode; a third step of forming a first layer overlapping with the first electrode, a fourth step of removing the first film by an etching method to form a first unit overlapping with the first electrode, a fifth step of removing a surface of the second electrode, a sixth step of forming a second film over the first layer and the second electrode, a seventh step of forming a second layer overlapping with the second electrode, and an eighth step of removing the second film by an etching method using the second layer to form a second unit overlapping with the second electrode and a second gap.

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：US20170294594A1

公开(公告)日：2017-10-12

申请号：US15634114

申请日：2017-06-27

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hideko INOUE ,  Tomohiro KUBOTA ,  Satoshi SEO ,  Hayato YAMAWAKI ,  Yasushi KITANO

IPC: H01L51/00 ,  C09K11/06 ,  C07D409/10

CPC classification number: H01L51/0074 ,  C07D409/10 ,  C09K11/06 ,  C09K2211/1018 ,  H01L51/0072 ,  H01L51/5012

Abstract: A dibenzo[f,h]quinoxaline derivative in which impurities are reduced and a novel method of synthesizing the dibenzo[f,h]quinoxaline derivative in which impurities are reduced are provided. In addition, a light-emitting element, a light-emitting device, an electronic appliance, or a lighting device with high emission efficiency and high reliability in which the dibenzo[f,h]quinoxaline derivative is used as an EL material is provided. In the synthesis method, a 2-(chloroaryl)dibenzo[f,h]quinoxaline derivative is used as a synthetic intermediate in a synthetic pathway so that an impurity contained in a final product can be removed easily by purification by sublimation.

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：US20160118615A1

公开(公告)日：2016-04-28

申请号：US14922636

申请日：2015-10-26

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Satoshi SEO ,  Tsunenori SUZUKI ,  Takeyoshi WATABE ,  Kunihiko SUZUKI ,  Toshiki HAMADA ,  Rina NAKAMURA ,  Hayato YAMAWAKI ,  Ayumi SATO ,  Harue OSAKA

IPC: H01L51/50

CPC classification number: H01L51/5092 ,  H01L51/0025 ,  H01L51/0054 ,  H01L51/0058 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/0072 ,  H01L51/0074 ,  H01L51/0085 ,  H01L51/5072

Abstract: To provide a novel light-emitting element or a highly reliable light-emitting element. To provide a light-emitting device, a display device, an electronic device, and a lighting device each of which can be manufactured at a low cost. To provide a light-emitting element including an anode, a cathode, and an EL layer between the anode and the cathode. The EL layer includes a light-emitting layer and an electron injection transport layer between the light-emitting layer and the cathode, and the amount of a halogen detected from a material forming the electron injection transport layer is less than or equal to 30 ppm.

Abstract translation: 提供新颖的发光元件或高度可靠的发光元件。 提供可以以低成本制造的发光装置，显示装置，电子装置和照明装置。 在阳极和阴极之间提供包括阳极，阴极和EL层的发光元件。 EL层包括在发光层和阴极之间的发光层和电子注入传输层，并且从形成电子注入传输层的材料检测到的卤素的量小于或等于30ppm。

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：US20190115553A1

公开(公告)日：2019-04-18

申请号：US16214193

申请日：2018-12-10

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Satoshi SEO ,  Takeyoshi WATABE ,  Rina NAKAMURA ,  Harue OSAKA ,  Ayumi SATO ,  Kunihiko SUZUKI ,  Hayato YAMAWAKI

IPC: H01L51/50 ,  H01L51/00

Abstract: A novel light-emitting element or a highly reliable light-emitting element is provided. The light-emitting element includes an anode, a cathode, and an EL layer between the anode and the cathode. The EL layer includes at least a light-emitting layer. The light-emitting layer includes at least a first organic compound and a second organic compound. The energy for liberating halogen from a halogen-substituted product of the first organic compound in a radical anion state and in a triplet excited state is less than or equal to 1.00 eV. The amount of halogen-substituted product in the second organic compound is not increased with an increase in driving time of the light-emitting element.

公开(公告)号：US20160118614A1

公开(公告)日：2016-04-28

申请号：US14882701

申请日：2015-10-14

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi SEO ,  Takeyoshi WATABE ,  Rina NAKAMURA ,  Harue OSAKA ,  Ayumi SATO ,  Kunihiko SUZUKI ,  Hayato YAMAWAKI

IPC: H01L51/50 ,  H01L27/32

CPC classification number: H01L51/5012 ,  H01L51/0025 ,  H01L51/0072 ,  H01L51/0074 ,  H01L51/0085 ,  H01L51/5016

Abstract: A novel light-emitting element or a highly reliable light-emitting element is provided. The light-emitting element includes an anode, a cathode, and an EL layer between the anode and the cathode. The EL layer includes at least a light-emitting layer. The light-emitting layer includes at least a first organic compound and a second organic compound. The energy for liberating halogen from a halogen-substituted product of the first organic compound in a radical anion state and in a triplet excited state is less than or equal to 1.00 eV. The amount of halogen-substituted product in the second organic compound is not increased with an increase in driving time of the light-emitting element.

Abstract translation: 提供了一种新颖的发光元件或高度可靠的发光元件。 发光元件包括在阳极和阴极之间的阳极，阴极和EL层。 EL层至少包括发光层。 发光层至少包含第一有机化合物和第二有机化合物。 从自由基阴离子状态和三重激发态的第一有机化合物的卤素取代产物中释放卤素的能量小于或等于1.00eV。 随着发光元件的驱动时间的增加，第二有机化合物中卤素取代的产物的量不会增加。