公开(公告)号：US20240324309A1

公开(公告)日：2024-09-26

申请号：US18580309

申请日：2022-07-11

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Yoshinobu ASAMI ,  Takahiro FUJIE ,  Ryo TAGASHIRA ,  Sachiko KAWAKAMI ,  Yui YOSHIYASU ,  Tomohiro KUBOTA

IPC: H10K59/122 ,  H10K59/12

CPC classification number: H10K59/122 ,  H10K59/1201

Abstract: A display apparatus with high display quality is provided. A display apparatus includes a first pixel, a second pixel provided adjacent to the first pixel, a first insulating layer, and a second insulating layer over the first insulating layer. The first pixel includes a first pixel electrode, a first EL layer covering the first pixel electrode, a common electrode over the first EL layer. The second pixel includes a second pixel electrode, a second EL layer covering the second pixel electrode, and the common electrode over the second EL layer. The first insulating layer covers part of a side surface and part of a top surface of the first EL layer and part of a side surface and part of a top surface of the second EL layer. At least part of the second insulating layer is provided to be sandwiched between an end portion of the side surface of the first EL layer and an end portion of the side surface of the second EL layer. The second insulating layer contains an acrylic resin, and the second insulating layer has a tapered side surface and a convex shaped top surface. A taper angle of the tapered side surface of the second insulating layer is less than 90°, and the common electrode overlaps with the second insulating layer.

公开(公告)号：US20240065014A1

公开(公告)日：2024-02-22

申请号：US18382693

申请日：2023-10-23

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Takeyoshi WATABE ,  Tomohiro KUBOTA ,  Airi UEDA ,  Satoshi SEO ,  Nobuharu OHSAWA ,  Yuko KUBOTA

IPC: H10K50/115 ,  H10K50/16 ,  H10K50/17 ,  H10K85/60

CPC classification number: H10K50/115 ,  H10K50/16 ,  H10K50/17 ,  H10K85/626

Abstract: A light-emitting apparatus with low power consumption is provided. A light-emitting apparatus including a first light-emitting device and a first color conversion layer. The first light-emitting device includes an anode, a cathode, and an EL layer positioned between the anode and the cathode. The EL layer includes a layer including a material with a refractive index lower than or equal to 1.75 at 467 nm. The first color conversion layer includes a first substance capable of emission by absorbing light. Light emitted from the first light-emitting device enters the first color conversion layer.

公开(公告)号：US20230029353A1

公开(公告)日：2023-01-26

申请号：US17739260

申请日：2022-05-09

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takeyoshi WATABE ,  Hiromi SEO ,  Airi UEDA ,  Yuta KAWANO ,  Tomohiro KUBOTA ,  Yasushi KITANO ,  Takao TOSU ,  Nobuharu OHSAWA ,  Satoshi SEO

IPC: H01L51/50 ,  C07C211/45 ,  H01L51/42

Abstract: An organic semiconductor device with low driving voltage is provided. The light-emitting device includes an anode, a cathode, and an EL layer between the anode and the cathode. The EL layer includes a hole-transport layer and alight-emitting layer. The hole-transport layer is positioned between the anode and the light-emitting layer. The hole-transport layer is not in contact with the anode. The hole-transport layer includes a transport layer material for a light-emitting device and the GSP_slope that is a potential gradient of a surface potential of an evaporated film of the material is higher than or equal to 20 (mV/nm).

公开(公告)号：US20170250346A1

公开(公告)日：2017-08-31

申请号：US15440270

申请日：2017-02-23

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Satoshi SEO ,  Tsunenori SUZUKI ,  Tomohiro KUBOTA ,  Naoaki HASHIMOTO ,  Yusuke TAKITA

IPC: H01L51/00 ,  H01L51/52 ,  C09K11/06 ,  C07D209/86 ,  C07D209/80 ,  H01L27/32 ,  H01L51/50

CPC classification number: H01L51/0052 ,  C07D209/80 ,  C07D209/86 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1011 ,  C09K2211/1029 ,  H01L27/3244 ,  H01L51/006 ,  H01L51/0072 ,  H01L51/5012 ,  Y02P20/582

Abstract: A novel compound in which a delayed fluorescence component due to TTA accounts for a high proportion of emissive components is provided. The organic compound includes an anthracene skeleton, an arylene group, and a substituted or unsubstituted heterocyclic group including a carbazole skeleton. The anthracene skeleton and the substituted or unsubstituted heterocyclic group including the carbazole skeleton are bonded to each other through the arylene group. The anthracene skeleton includes an aryl group at the 2-position or the 3-position.

公开(公告)号：US20240341155A1

公开(公告)日：2024-10-10

申请号：US18580029

申请日：2022-06-29

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Shinya SASAGAWA ,  Ryota HODO ,  Kentaro SUGAYA ,  Yoshikazu HIURA ,  Takahiro FUJIE ,  Sachiko KAWAKAMI ,  Yui YOSHIYASU ,  Tomohiro KUBOTA

IPC: H10K59/80 ,  H10K50/18 ,  H10K59/12 ,  H10K71/20 ,  H10K71/40

CPC classification number: H10K59/873 ,  H10K50/18 ,  H10K59/1201 ,  H10K71/233 ,  H10K71/40

Abstract: A display device with high display quality is provided. The display device includes a first light-emitting device, a second light-emitting device, a first insulating layer, and a second insulating layer; the first light-emitting device includes a first pixel electrode, a first light-emitting layer over the first pixel electrode, and a common electrode over the first light-emitting layer; the second light-emitting device includes a second pixel electrode, a second light-emitting layer over the second pixel electrode, and the common electrode over the second light-emitting layer; the first insulating layer covers a side surface and part of a top surface of the first light-emitting layer and a side surface and part of a top surface of the second light-emitting layer; the second insulating layer overlaps with the side surface and the part of the top surface of the first light-emitting layer and the side surface and the part of the top surface of the second light-emitting layer with the first insulating layer therebetween; the common electrode covers the second insulating layer; in a cross-sectional view, an end portion of the second insulating layer has a tapered shape with a taper angle less than 90°; and the second insulating layer covers at least part of a side surface of the first insulating layer.

公开(公告)号：US20240049578A1

公开(公告)日：2024-02-08

申请号：US18247672

申请日：2021-09-27

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Takeyoshi WATABE ,  Airi UEDA ,  Yuta KAWANO ,  Tomohiro KUBOTA ,  Nobuharu OHSAWA ,  Satoshi SEO

IPC: H10K59/80 ,  H10K59/38

CPC classification number: H10K59/879 ,  H10K59/38 ,  H10K50/15

Abstract: A light-emitting device with low power consumption is provided. The light-emitting apparatus including a first light-emitting device and a first color conversion layer. The first light-emitting device includes an anode, a cathode, and an EL layer between the anode and the cathode. The EL layer includes a layer including a material with an ordinary refractive index higher than or equal to 1.50 and lower than 1.75 with respect to light with a wavelength longer than or equal to 455 nm and shorter than or equal to 465 nm. The first color conversion layer includes a first substance that absorbs light and emits light. An ordinary refractive index of the first color conversion layer with respect to light with a wavelength longer than or equal to 455 nm and shorter than or equal to 465 nm is higher than or equal to 1.40 and lower than or equal to 2.10. The first color conversion layer is on an optical path of the light emitted from the first light-emitting device to an outside of the light-emitting apparatus.

公开(公告)号：US20230095876A1

公开(公告)日：2023-03-30

申请号：US17969363

申请日：2022-10-19

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei Yamazaki ,  Takeyoshi WATABE ,  Tomohiro KUBOTA ,  Airi UEDA ,  Satoshi SEO ,  Nobuharu OHSAWA ,  Yuko KUBOTA

IPC: H01L51/50 ,  H01L51/00

Abstract: A light-emitting apparatus with low power consumption is provided. A light-emitting apparatus including a first light-emitting device and a first color conversion layer. The first light-emitting device includes an anode, a cathode, and an EL layer positioned between the anode and the cathode. The EL layer includes a layer including a material with a refractive index lower than or equal to 1.75 at 467 nm. The first color conversion layer includes a first substance capable of emission by absorbing light. Light emitted from the first light-emitting device enters the first color conversion layer.

公开(公告)号：US20220077391A1

公开(公告)日：2022-03-10

申请号：US17412450

申请日：2021-08-26

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Nobuharu OHSAWA ,  Satoshi SEO ,  Takeyoshi WATABE ,  Airi UEDA ,  Tomohiro KUBOTA ,  Takashi HIRAHARA

IPC: H01L51/00 ,  C07C211/61

Abstract: A light-emitting device with high emission efficiency and low driving voltage is provided. A light-emitting apparatus, an electronic device, and a lighting device with low power consumption are provided. The following organic compound is provided: the organic compound has an arylamine structure; and when the organic compound is deposited to be a film, the ordinary refractive index of the deposited film with respect to light with a wavelength of 458 nm is greater than or equal to 1.50 and less than or equal to 1.75, the birefringence Δn of the deposited film with respect to light with a wavelength of 458 nm is greater than or equal to 0 and less than or equal to 0.008, or the alignment order parameter of the deposited film with respect to light with a wavelength corresponding to the longest wavelength where an absorption peak appears in the absorption spectrum is greater than or equal to −0.07 and less than or equal to 0.00.

公开(公告)号：US20160108006A1

公开(公告)日：2016-04-21

申请号：US14984262

申请日：2015-12-30

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hideko INOUE ,  Tomohiro KUBOTA ,  Miki KANAMOTO

IPC: C07D241/18

CPC classification number: C07D241/18 ,  C07D241/12 ,  C07F15/0033 ,  C09K11/06 ,  C09K2211/185 ,  H01L51/0085 ,  H01L51/5016 ,  H01L2251/308

Abstract: Provided is a 5,6-diaryl-2-pyrazyl triflate, its synthetic method, and a method for synthesizing an organometallic complex having a triarylpyrazine ligand from the 5,6-diaryl-2-pyrazyl triflate. The triflate is readily obtained from the corresponding 5,6-diarylpyrazin-2-ol, and the palladium-catalyzed coupling of the 5,6-diaryl-2-pyrazyl triflate with an arylboronic acid derivative leads to a high yield of a triarylpyrazine derivative having high purity. The use of the triarylpyrazine derivative in the reaction with a metal compound such as a metal chloride results in an ortho-metallated organometallic complex with high purity. The high purity of the organometallic complex contributes to the extremely high durability of a light-emitting element.

公开(公告)号：US20230203054A1

公开(公告)日：2023-06-29

申请号：US18068575

申请日：2022-12-20

Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.

Inventor： Sachiko KAWAKAMI ,  Yuki HAYASHI ,  Miyako MORIKUBO ,  Tomohiro KUBOTA ,  Hiromitsu KIDO ,  Tomoya YAMAGUCHI ,  Hideko YOSHIZUMI ,  Satoshi SEO

IPC: C07D491/048 ,  H10K10/46 ,  H10K85/60

CPC classification number: C07D491/048 ,  H10K10/46 ,  H10K85/6572 ,  H10K85/6574 ,  H10K85/657

Abstract: An organic compound with a long lifetime and high emission efficiency is provided. An organic compound represented by General Formula (G1) is provided. In the formula, any one of X1 to X4 represents N, another one represents C, and the others represent C or N. Any one of C is bonded to a group represented by General Formula (r1), and the others are bonded to hydrogen (H), an alkyl (R) group, a cycloalkyl (Cy) group, an aryl (Ar) group, or a heteroaryl (Het) group. Ar1 represents an aromatic hydrocarbon, and is fused to an adjacent ring at a given site. When Ar1 represents a benzene ring, the benzene ring includes an Ar group or a Het group. Q and Z represent O or S. Any of R31 to R34 represents a bond to any one of X1 to X4, and the others represent H, an R group, a Cy group, an Ar group, or a Het group. Any one of R35 to R38 represents a polycyclic ring aromatic hydrocarbon group or a Het group, and the others represent H, an R group, a Cy group, an Ar group, or a Het group.