公开(公告)号：US20240057394A1

公开(公告)日：2024-02-15

申请号：US18266820

申请日：2020-12-22

Applicant: SHARP KABUSHIKI KAISHA

Inventor： JUN SAKUMA ,  YASUSHI ASAOKA

IPC: H10K59/122 ,  H10K59/12

CPC classification number: H10K59/122 ,  H10K59/1201

Abstract: A display device includes a first common charge transport layer, a first light-emitting layer and a second light-emitting layer each of which is formed on the first common charge transport layer, a common electrode formed over both of the first light-emitting layer and the second light-emitting layer, and a leakage blocking layer having an insulating property, the leakage blocking layer being superimposed on two adjacent end portions of the first light-emitting layer and the second light-emitting layer in plan view, and a distance between the first common charge transport layer and the common electrode is larger in a first region where each of the first light-emitting layer and the second light-emitting layer is superimposed on the leakage blocking layer than in a second region where each of the first light-emitting layer and the second light-emitting layer is not superimposed on the leakage blocking layer.

公开(公告)号：US20230354648A1

公开(公告)日：2023-11-02

申请号：US18026343

申请日：2020-09-17

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Sentaro KIDA ,  YASUSHI ASAOKA ,  TSUYOSHI KAMADA

IPC: H10K59/122 ,  H10K59/131 ,  H10K59/80 ,  H10K71/13 ,  H10K71/00 ,  H10K71/60

CPC classification number: H10K59/122 ,  H10K59/131 ,  H10K59/80515 ,  H10K71/135 ,  H10K71/621 ,  H10K71/60 ,  H10K59/80521

Abstract: A display device includes: a plurality of first electrodes shaped into islands; a first light-emitting layer formed to overlap with a first electrode among the plurality of the first electrodes, the first light-emitting layer containing a first light-emitting material and resin; a second light-emitting layers formed to overlap with another first electrode among the plurality of the first electrodes, the second light-emitting layers being made of a second light-emitting material; and a bank formed in a shape of a picture frame, or formed to include two partition walls facing each other and separating an inner region from an outer region. The second light-emitting layer is provided behind the bank to be in contact with an inner side face of the bank, and the first light-emitting layer is formed out of the bank.

公开(公告)号：US20230276645A1

公开(公告)日：2023-08-31

申请号：US18014637

申请日：2020-07-22

Applicant: SHARP KABUSHIKI KAISHA

Inventor： YASUSHI ASAOKA ,  JUN SAKUMA ,  Takahiro ADACHI

IPC: H10K50/13 ,  H10K50/16 ,  H10K50/18

CPC classification number: H10K50/13 ,  H10K50/166 ,  H10K50/181

Abstract: A light-emitting device includes a first light-emitting layer disposed between a cathode and an anode and having a light emission central wavelength being a first wavelength; a second light-emitting layer disposed between the anode and the first light-emitting layer, having a light emission central wavelength being a second wavelength shorter than the first wavelength, and having an electron affinity lower than an electron affinity of the first light-emitting layer; and a first electron transport layer disposed between the first light-emitting layer and the second light-emitting layer in the second light-emitting region and having magnitude of an electron affinity between an electron affinity of the first light-emitting layer and an electron affinity of the second light-emitting layer.

公开(公告)号：US20230174860A1

公开(公告)日：2023-06-08

申请号：US17921968

申请日：2021-03-22

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Yusuke IKEDA ,  MASAKAZU KAMURA ,  YUKA UTSUMI ,  YASUSHI ASAOKA ,  Takahiro ADACHI

IPC: C09K11/88 ,  C09K11/08

CPC classification number: C09K11/883 ,  C09K11/0883 ,  B82Y20/00

Abstract: A method of treating an aqueous solution containing quantum dots, the method includes: a dissolution liquid preparation step of dissolving a quaternary ammonium salt and a potassium salt in an aqueous solution containing quantum dots to prepare a dissolution liquid; a phase separation step of heating the dissolution liquid to separate the dissolution liquid into two phases, which are a quaternary ammonium salt phase containing a large amount of the quaternary ammonium salt and a potassium salt phase containing a large amount of the potassium salt, and also to cause the quantum dots to be included in either one of the quaternary ammonium salt phase and the potassium salt phase; and a fractionation step of separating the quaternary ammonium salt phase and the potassium salt phase by fractionation.

公开(公告)号：US20230060279A1

公开(公告)日：2023-03-02

申请号：US17793775

申请日：2020-02-14

Applicant: SHARP KABUSHIKI KAISHA

Inventor： YASUSHI ASAOKA ,  TSUYOSHI KAMADA ,  SHIGERU AOMORI

IPC: H01L27/32 ,  H01L51/50

Abstract: According to an aspect of the disclosure, a first light-emitting layer coincides in plan view with each whole of a plurality of pixel electrodes included in a plurality of second sub-pixels, and with each whole of a plurality of pixel electrodes included in a plurality of third sub-pixels. The first light-emitting layer is shaped into a continuous form. A third light-emitting layer in plan view: has an opening kb1 inside a peripheral end portion of each of a plurality of pixel electrodes included in a plurality of first sub-pixels, and coincides with a whole circumference of the peripheral end portion; and has an opening inside a peripheral end portion of each of a plurality of pixel electrodes included in the plurality of second sub-pixels, and coincides with a whole circumference of the peripheral end portion-Sg.

公开(公告)号：US20230027405A1

公开(公告)日：2023-01-26

申请号：US17770579

申请日：2019-10-31

Applicant: SHARP KABUSHIKI KAISHA

Inventor： YASUSHI ASAOKA ,  KANAKO NAKATA ,  TATSUYA RYOHWA ,  MAKOTO IZUMI

IPC: H01L33/50 ,  H01L27/15 ,  H01L33/10 ,  H01L33/38 ,  H01L33/00

Abstract: A light-emitting element contains negative ions and positive ions, and includes a solid ionic layer, a layer containing quantum dots, and a cathode electrode and an anode electrode. The ionic layer includes a p-type doped region on the anode electrode side containing the negative ions in a higher quantity than the positive ions, an n-type doped region on the cathode electrode side containing the positive ions in a higher quantity than the negative ions, and a junction region between the p-type doped region and the n-type doped region. The layer containing the quantum dots is adjacent to the junction region. Alternatively, the quantum dots are contained in the junction region. Alternatively, the quantum dots are adjacent to the junction region.

公开(公告)号：US20220352262A1

公开(公告)日：2022-11-03

申请号：US17622131

申请日：2019-08-05

Applicant: SHARP KABUSHIKI KAISHA

Inventor： YASUSHI ASAOKA ,  Sentaro KIDA

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

Abstract: A method of manufacturing a display device includes: the first substrate preparation step of preparing a first substrate including insular, first electrodes, one for each of the plurality of subpixels; the second substrate preparation step of preparing a second substrate including a second electrode; the subpixel-specific layer forming step of forming insular subpixel-specific layers, one for each of the first electrodes, on either one or both of a top face of the first substrate and a top face of the second substrate; the nanoparticle layer forming step of forming a nanoparticle layer including a stack of nanoparticles on either one or both of the topmost face of the first substrate and the topmost face of the second electrode; and the bonding step of bonding the first substrate and the second substrate together via the nanoparticle layer in such a manner that the first electrodes face the second electrode.

公开(公告)号：US20240425656A1

公开(公告)日：2024-12-26

申请号：US18577367

申请日：2021-09-06

Applicant: SHARP KABUSHIKI KAISHA

Inventor： HIROFUMI YOSHIKAWA ,  YASUSHI ASAOKA

IPC: C08J5/18 ,  B82Y30/00 ,  C08G63/66 ,  C08K3/04 ,  C08K5/5377 ,  H01L33/50

Abstract: A nanoparticle composition includes: out of nanoparticles and ligands, at least the nanoparticles; and a curable monomer. At least the nanoparticles or the ligands contained in the nanoparticle composition contain aromatic rings. The curable monomer contains an aromatic monomer.

公开(公告)号：US20240244885A1

公开(公告)日：2024-07-18

申请号：US18288288

申请日：2021-06-03

Applicant: SHARP KABUSHIKI KAISHA

Inventor： JUN SAKUMA ,  YASUSHI ASAOKA

IPC: H10K59/122 ,  H10K59/12

CPC classification number: H10K59/122 ,  H10K59/1201

Abstract: A hole transport layer serving as a target layer includes a part of a region formed between a plurality of lower electrodes and a partition, and includes a first portion and a second portion across at least one of a non-formation portion of the target layer and a region where the target layer is thinner than the target layer on the plurality of lower electrodes in the reverse tapered portion.

公开(公告)号：US20240114747A1

公开(公告)日：2024-04-04

申请号：US18267976

申请日：2020-12-22

Applicant: SHARP KABUSHIKI KAISHA

Inventor： YASUSHI ASAOKA ,  Sentaro KIDA ,  Takahiro ADACHI

IPC: H10K59/80 ,  H10K59/12 ,  H10K59/124

CPC classification number: H10K59/80515 ,  H10K59/1201 ,  H10K59/124

Abstract: A display device includes: a substrate; a pixel electrode disposed on the substrate, the pixel electrode including a first portion and a second portion disposed outside the first portion, the first portion protruding to a second side opposite to a first side closer to the substrate than the second portion; a light-emitting layer disposed across the second side of the first portion and the second side of the second portion; a first edge cover disposed across the second side of a side edge portion of the first portion and the second side of the second portion, the first edge cover including an opening formed on the second side of a central portion of the first portion, the first edge cover covering an edge of the first portion; and a counter electrode including a portion disposed closer to the second side than the first edge cover.