公开(公告)号：US20140084273A1

公开(公告)日：2014-03-27

申请号：US14029208

申请日：2013-09-17

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Tomonori Nakayama ,  Takako TAKASU ,  Satoko SHITAGAKI ,  Harue OSAKA ,  Toshiki HAMADA

IPC: H01L51/00

CPC classification number: H01L51/0072 ,  C07D487/14 ,  C09K11/025 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1029 ,  C09K2211/1059 ,  C09K2211/185 ,  H01L51/0058 ,  H01L51/0067 ,  H01L51/0071 ,  H01L51/0074 ,  H01L51/0085 ,  H01L51/5004 ,  H01L51/5016 ,  H01L2251/552 ,  H05B33/14

Abstract: A light-emitting element emitting phosphorescence and having high emission efficiency, in which a property of injecting holes to a light-emitting layer is increased, is provided. The light-emitting layer of the light-emitting element includes a first organic compound represented by the following general formula (G1) and a second organic compound which is a phosphorescent compound. The difference between the HOMO level of the first organic compound and the HOMO level of the second organic compound is lower than or equal to 0.3 eV.

Abstract translation: 提供了发射磷光并且具有高发光效率的发光元件，其中向发光层注入空穴的性质增加。 发光元件的发光层包括由以下通式（G1）表示的第一有机化合物和作为磷光化合物的第二有机化合物。 第一有机化合物的HOMO能级与第二有机化合物的HOMO能级之间的差异小于或等于0.3eV。

公开(公告)号：US20130253206A1

公开(公告)日：2013-09-26

申请号：US13893376

申请日：2013-05-14

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD

Inventor： Harue OSAKA ,  Sachiko KAWAKAMI ,  Nobuharu OHSAWA ,  Satoshi SEO

IPC: H01L51/00

CPC classification number: H01L51/0072 ,  C07D209/86 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1029 ,  H01L51/0002 ,  H01L51/0021 ,  H01L51/0052 ,  H01L51/5012 ,  H05B33/14

Abstract: Novel anthracene derivatives, novel materials capable of blue light emission with high color purity, and a light-emitting element, a light-emitting device, and an electronic device using any of the novel materials. The anthracene derivative represented by general formula (1) is provided. With the anthracene derivative, a light-emitting element with high emission efficiency can be provided. With the anthracene derivative, a light-emitting element emitting blue light with high color purity can be provided. In the formula, A1 represents a substituted or unsubstituted phenyl group, B1 represents any of an alkyl group having 1 to 4 carbon atoms or a substituted or unsubstituted phenyl group, a represents any of a substituted or unsubstituted phenylene group or a substituted or unsubstituted biphenyl-4,4′-diyl group, and R1 to R9 individually represent any of hydrogen, an alkyl group having 1 to 4 carbon atoms, or a substituted or unsubstituted phenyl group.

Abstract translation: 新型蒽衍生物，能够具有高纯度的蓝色发光的新型材料，以及发光元件，发光装置和使用任何新颖材料的电子器件。 提供由通式（1）表示的蒽衍生物。 通过蒽衍生物，可以提供发光效率高的发光元件。 通过蒽衍生物，可以提供发出高色纯度的蓝光的发光元件。 式中，A1表示取代或未取代的苯基，B1表示碳原子数1〜4的烷基或取代或未取代的苯基中的任一个，a表示取代或未取代的亚苯基或取代或未取代的联苯 -4,4'-二基，R 1〜R 9分别表示氢，碳原子数1〜4的烷基或取代或未取代的苯基。

公开(公告)号：US20250034177A1

公开(公告)日：2025-01-30

申请号：US18763512

申请日：2024-07-03

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Harue OSAKA ,  Satoko NUMATA ,  Nobuharu OHSAWA ,  Yuko KUBOTA ,  Kyoko TAKEDA ,  Hiromitsu KIDO

IPC: C07F7/08 ,  C09K11/06 ,  H10K85/40 ,  H10K85/60

Abstract: An organic compound having high heat resistance is provided. An organic compound represented by a general formula (G1) is provided. In the formula, Q represents carbon or silicon; each of R1 and R2 independently represents an alkyl group, a cycloalkyl group, or an aryl group; n represents an integer from 1 to 3; each of α1 to α4 independently represents a phenylene group or a biphenylene group; at least one of R15, R25, R31 and at least one of R45, R55, and R61 represent single bonds and the others thereof represent H, an alkyl group, or an aryl group; and R11 to R14, R21 to R24, R32 to R35, R41 to R44, R51 to R54, and R62 to R65 represent H, an alkyl group, a cycloalkyl group, or an aryl group.

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：US20240206306A1

公开(公告)日：2024-06-20

申请号：US18592944

申请日：2024-03-01

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Taisuke KAMADA ,  Ryo HATSUMI ,  Daisuke KUBOTA ,  Naoaki HASHIMOTO ,  Tsunenori SUZUKI ,  Harue OSAKA ,  Satoshi SEO

IPC: H10K65/00 ,  H10K39/32 ,  H10K50/16 ,  H10K50/17 ,  H10K50/86 ,  H10K59/12 ,  H10K59/40 ,  H10K101/30

CPC classification number: H10K65/00 ,  H10K39/32 ,  H10K50/16 ,  H10K50/17 ,  H10K50/865 ,  H10K59/12 ,  H10K59/40 ,  H10K2101/30

Abstract: An object is to provide a highly reliable display unit having a function of sensing light. The display unit includes a light-receiving device and a light-emitting device. The light-receiving device includes an active layer between a pair of electrodes. The light-emitting device includes a hole-injection layer, a light-emitting layer, and an electron-transport layer between a pair of electrodes. The light-receiving device and the light-emitting device share one of the electrodes, and may further share another common layer between the pair of electrodes. The hole-injection layer is in contact with an anode and contains a first compound and a second compound. The electron-transport property of the electron-transport layer is low; hence, the light-emitting layer is less likely to have excess electrons. Here, the first compound is the material having a property of accepting electrons from the second compound.

公开(公告)号：US20240164134A1

公开(公告)日：2024-05-16

申请号：US18423895

申请日：2024-01-26

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Yuta KAWANO ,  Airi UEDA ,  Takeyoshi WATABE ,  Nobuharu OHSAWA ,  Keito TOSU ,  Harue OSAKA ,  Satoshi SEO ,  Ryo NARUKAWA ,  Shiho NOMURA

IPC: H10K50/16 ,  H10K59/00 ,  H10K59/12

CPC classification number: H10K50/16 ,  H10K59/00 ,  H10K59/12 ,  H10K85/631

Abstract: A light-emitting device with high emission efficiency is provided. The light-emitting device includes an anode, a cathode, and an EL layer positioned between the anode and the cathode. The EL layer includes a light-emitting layer and an electron-transport layer; the light-emitting layer includes a light-emitting material; the electron-transport layer includes an organic compound having an electron-transport property and a metal complex of an alkali metal; the ordinary refractive index of the organic compound having an electron-transport property in a peak wavelength of light emitted from the light-emitting material is greater than or equal to 1.50 and less than or equal to 1.75; and the ordinary refractive index of the metal complex of an alkali metal in the peak wavelength of the light emitted from the light-emitting material is greater than or equal to 1.45 and less than or equal to 1.70.

公开(公告)号：US20230397494A1

公开(公告)日：2023-12-07

申请号：US18250572

申请日：2021-10-19

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Hiroshi KADOMA ,  Nobuharu OHSAWA ,  Satoshi SEO ,  Harue OSAKA

IPC: H10K85/60 ,  C07D471/06 ,  C09K11/06

CPC classification number: H10K85/6572 ,  C07D471/06 ,  C09K11/06 ,  H10K85/6576 ,  H10K85/636 ,  H10K50/166

Abstract: A novel organic compound suitable for a host material of a light-emitting device, particularly a host material of a phosphorescent device is provided. An organic compound in which any of a carbazolyl group, a dibenzothiophenyl group, a dibenzofuranyl group, and a diphenylamino group is bonded to the 3-position of imidazophenanthridine through an arylene group, or an organic compound in which a diphenylamino group is bonded to the 3-position of triazolophenanthridine through an arylene group is provided.

公开(公告)号：US20230255094A1

公开(公告)日：2023-08-10

申请号：US18134638

申请日：2023-04-14

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Taisuke KAMADA ,  Ryo HATSUMI ,  Daisuke KUBOTA ,  Naoaki HASHIMOTO ,  Tsunenori SUZUKI ,  Harue OSAKA ,  Satoshi SEO

IPC: H10K65/00 ,  H10K39/32 ,  H10K50/16 ,  H10K50/17 ,  H10K50/86 ,  H10K59/12 ,  H10K59/40

CPC classification number: H10K65/00 ,  H10K39/32 ,  H10K50/16 ,  H10K50/17 ,  H10K50/865 ,  H10K59/12 ,  H10K59/40 ,  H10K2101/30

Abstract: An object is to provide a highly reliable display unit having a function of sensing light. The display unit includes a light-receiving device and a light-emitting device. The light-receiving device includes an active layer between a pair of electrodes. The light-emitting device includes a hole-injection layer, a light-emitting layer, and an electron-transport layer between a pair of electrodes. The light-receiving device and the light-emitting device share one of the electrodes, and may further share another common layer between the pair of electrodes. The hole-injection layer is in contact with an anode and contains a first compound and a second compound. The electron-transport property of the electron-transport layer is low; hence, the light-emitting layer is less likely to have excess electrons. Here, the first compound is the material having a property of accepting electrons from the second compound.

公开(公告)号：US20220388958A1

公开(公告)日：2022-12-08

申请号：US17861363

申请日：2022-07-11

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Hiroko NOMURA ,  Harue OSAKA ,  Takahiro USHIKUBO ,  Sachiko KAWAKAMI ,  Satoshi SEO ,  Satoko SHITAGAKI

IPC: C07D209/86 ,  H01L51/00

Abstract: To provide a light-emitting element having high luminous efficiency and to provide a light-emitting device and an electronic device which consumes low power and is driven at low voltage, a carbazole derivative represented by the general formula (1) is provided. In the formula, α1, α2, α3, and α4 each represent an arylene group having less than or equal to 13 carbon atoms; Ar1 and Ar2 each represent an aryl group having less than or equal to 13 carbon atoms; R1 represents any of a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, and a substituted or unsubstituted biphenyl group; and R2 represents any of an alkyl group having 1 to 6 carbon atoms, a substituted or unsubstituted phenyl group, and a substituted or unsubstituted biphenyl group. In addition, l, m, and n are each independently 0 or 1.

公开(公告)号：US20220231248A1

公开(公告)日：2022-07-21

申请号：US17603692

申请日：2020-04-07

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Satoshi SEO ,  Harue OSAKA

IPC: H01L51/50

Abstract: A display device having a long lifetime is provided. The display device includes a first light-emitting device and a second light-emitting device. The first light-emitting device includes a first electrode and a common electrode. The second light-emitting device includes a second electrode and a common electrode. The first light-emitting device includes a first light-emitting layer and an electron-transport layer in this order from a side of one of the first electrode and the common electrode which functions as an anode. The second light-emitting device includes a second light-emitting layer between the second electrode and the common electrode. The first light-emitting layer contains a first organic compound emitting light of a first color. The second light-emitting layer contains a second organic compound emitting light of a second color. The electron-transport layer contains a third organic compound and a first substance. The third organic compound is an electron-transport material. The first substance is a metal, a metallic salt, a metal oxide, or an organometallic salt. The electron-transport layer includes a first region and a second region which differ in a concentration of the first substance.