公开(公告)号：US20230006166A1

公开(公告)日：2023-01-05

申请号：US17781336

申请日：2019-12-04

Applicant: SHARP KABUSHIKI KAISHA

Inventor： TAKAYUKI NAKA ,  YOSHIHIRO UETA ,  NOBORU IWATA

IPC: H01L51/50 ,  H01L27/32 ,  H01L51/00

Abstract: A light-emitting device includes an HTL including a metal chalcogenide between an anode and an EML, with an IL including an organic material at least between the HTL and the EML. A distance between the HTL and the EML in a light-emitting element that emits light in a wavelength band having the shortest light emission peak wavelength is greater than a distance between the HTL and the EML in each of the other light-emitting elements.

公开(公告)号：US20230006134A1

公开(公告)日：2023-01-05

申请号：US17783919

申请日：2019-12-27

Applicant: SHARP KABUSHIKI KAISHA

Inventor： YOSHIHIRO UETA

IPC: H01L51/00 ,  H01L27/32 ,  H01L51/50 ,  H01L51/56

Abstract: A method for manufacturing a display device includes: a step of forming a first recess, in a planarization film, overlapping a first lower electrode; a step of forming a first lower functional layer in the first recess to have a thickness lower than a depth of the first recess; a step of disposing a first screen, which has an opening corresponding to the first recess, on the planarization film, and coating the first lower functional layer with a first light-emitting layer; a step of sliding a squeegee in contact with the first screen to squeegee the first light-emitting layer and, after the squeegeeing, removing the first screen; and a step of sliding the squeegee in contact with the planarization film to squeegee the first light-emitting layer again.

公开(公告)号：US20220020898A1

公开(公告)日：2022-01-20

申请号：US17311861

申请日：2018-12-10

Applicant: SHARP KABUSHIKI KAISHA

Inventor： YOSHIHIRO UETA

IPC: H01L33/14 ,  H01L33/06 ,  H01L33/00 ,  H01L33/36

Abstract: A light-emitting element includes: an anode; a hole transport layer of a p-type semiconductor; a n-type semiconductor layer containing a Group 13 element; a light-emitting layer containing quantum dots; an electron transport layer; and a cathode, arranged in this order.

公开(公告)号：US20240158691A1

公开(公告)日：2024-05-16

申请号：US18281151

申请日：2021-03-12

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Ryo KITAMURA ,  YOSHIHIRO UETA

IPC: C09K11/02 ,  C09K11/60 ,  C09K11/61 ,  B82Y20/00 ,  H10K30/50 ,  H10K50/115

CPC classification number: C09K11/025 ,  C09K11/605 ,  C09K11/616 ,  B82Y20/00 ,  H10K30/50 ,  H10K50/115

Abstract: A quantum dot according to the present application includes a surface including polar planes accounting for an area percentage of 70% or more, or a surface including non-polar planes accounting for an area percentage of 70% or more.

公开(公告)号：US20240057369A1

公开(公告)日：2024-02-15

申请号：US18271683

申请日：2021-01-13

Applicant: SHARP KABUSHIKI KAISHA

Inventor： YOSHIHIRO UETA

IPC: H10K50/16 ,  H10K50/115

CPC classification number: H10K50/166 ,  H10K50/115 ,  H10K2102/351

Abstract: A light-emitting element includes: a cathode; an anode opposite the cathode; a light-emitting layer between the cathode and the anode; and an electron transport layer between the cathode and the light-emitting layer, the electron transport layer containing either a compound containing a Group IIB element, a Group IVB element, and elemental nitrogen or a compound containing the Group IVB element, a Group VIB element, and elemental boron.

公开(公告)号：US20240057365A1

公开(公告)日：2024-02-15

申请号：US18269566

申请日：2020-12-25

Applicant: SHARP KABUSHIKI KAISHA

Inventor： MASAYA UEDA ,  HIROHISA YAMADA ,  YOSHIHIRO UETA

IPC: H10K50/115 ,  H10K59/131

CPC classification number: H10K50/115 ,  H10K59/131

Abstract: A light-emitting device includes an anode, a cathode, a light-emitting layer disposed between the anode and the cathode, a first electrode disposed in a manner capable of generating a second electric field in the light-emitting layer in cooperation with one of the anode and the cathode, the second electric field bringing a total electric field, which is generated in the light-emitting layer and includes a first electric field generated in the light-emitting layer between the anode and the cathode, close to zero, and a first insulating film surrounding the first electrode in a cross-sectional view of the anode, the cathode, and the light-emitting layer.

公开(公告)号：US20230363192A1

公开(公告)日：2023-11-09

申请号：US18025823

申请日：2020-09-11

Applicant: SHARP KABUSHIKI KAISHA

Inventor： MASAYA UEDA ,  Keisuke KITANO ,  Masaki YAMAMOTO ,  MAKOTO IZUMI ,  YOSHIHIRO UETA

IPC: H10K50/115 ,  H10K50/15 ,  H10K50/16

CPC classification number: H10K50/115 ,  H10K50/15 ,  H10K50/16

Abstract: A light-emitting element includes the following: a cathode; an anode; and a light-emitting layer disposed between the cathode and the anode, and containing a quantum dot including a core and a shell, wherein the core contains a dopant.

公开(公告)号：US20230090252A1

公开(公告)日：2023-03-23

申请号：US17791810

申请日：2020-01-15

Applicant: SHARP KABUSHIKI KAISHA

Inventor： YOSHIHIRO UETA

IPC: H01L51/50 ,  H01L51/00

Abstract: A light-emitting element includes: a first electrode; a second electrode; and a light-emitting layer between the first electrode and the second electrode, wherein the light-emitting layer includes quantum dots and a cyclic organic compound, and at least some of atoms that form a ring of the cyclic organic compound are coordinated to the quantum dots.

公开(公告)号：US20220376008A1

公开(公告)日：2022-11-24

申请号：US17772425

申请日：2019-11-07

Applicant: SHARP KABUSHIKI KAISHA

Inventor： YOSHIHIRO UETA

IPC: H01L27/32 ,  H01L51/56 ,  H01L51/50

Abstract: A light-emitting element includes: a first electrode; a first carrier transport layer in electrical contact with the first electrode; a second electrode separated from the first electrode; a second carrier transport layer in electrical contact with the second electrode; and a light-emitting layer, wherein at least part of the light-emitting layer overlaps on part of the first carrier transport layer, and part of the light-emitting layer overlaps on part of the second carrier transport layer, and in plan view, the first carrier transport layer and the second carrier transport layer face each other with the light-emitting layer provided in between.

公开(公告)号：US20220376004A1

公开(公告)日：2022-11-24

申请号：US17771259

申请日：2019-11-06

Applicant: SHARP KABUSHIKI KAISHA

Inventor： TAZUKO KITAZAWA ,  YOSHIHIRO UETA

IPC: H01L27/32 ,  H01L51/52 ,  H01L51/56

Abstract: A light-emitting device includes, on a substrate, a red pixel electrode and a green pixel electrode, a common electrode, and a blue pixel electrode, in order from the substrate side, and includes a transparent region adjacent to a light-emitting region including a position overlapping the red light-emitting layer, the green light-emitting layer, and the blue light-emitting layer in a plan view. At least a part of the blue light-emitting layer overlaps the red light-emitting layer and the green light-emitting layer adjacent to the red light-emitting layer in the plan view.