公开(公告)号：US20250084305A1

公开(公告)日：2025-03-13

申请号：US18273977

申请日：2021-01-28

Applicant: SHARP KABUSHIKI KAISHA ,  TOPPAN INC.

Inventor： TADASHI KOBASHI ,  HIROHISA YAMADA ,  TAKAHIRO DOE ,  Keisuke KITANO ,  Masaki YAMAMOTO ,  Yuko OGURA ,  Masanori TANAKA ,  Mikihiro TAKASAKI ,  Yuka TAKAMIZUMA ,  Soichiro NIKATA ,  Tetsuji ITO ,  Mayuko WATANABE

IPC: C09K11/08 ,  H10K50/115 ,  H10K50/16

Abstract: A QD is a Cd-free quantum dot including a core and a shell and configured to emit blue light. The core at least contains Zn and Se. The shell has a film thickness in a range from 0.5 nm to 3 nm, contains Zn, Se, and S in a boundary portion adjacent to the core, and contains Zn and S in an outermost portion.

公开(公告)号：US20230337449A1

公开(公告)日：2023-10-19

申请号：US18028500

申请日：2020-09-28

Applicant: SHARP KABUSHIKI KAISHA

Inventor： HIROFUMI YOSHIKAWA ,  TAKAHIRO DOE ,  Masaki YAMAMOTO

IPC: H10K50/115 ,  H10K71/15

CPC classification number: H10K50/115 ,  H10K71/15

Abstract: A light-emitting element includes the following: a first electrode and a second electrode; and a light-emitting layer disposed between the first electrode and the second electrode. The light-emitting layer includes a plurality of quantum dots, and a mixed crystalline body-containing at least one of ZnS or ZnSe and containing Zn(OH)2.

公开(公告)号：US20230189620A1

公开(公告)日：2023-06-15

申请号：US18015183

申请日：2020-08-07

Applicant: SHARP KABUSHIKI KAISHA

Inventor： TAKAHIRO DOE

IPC: H10K59/80

CPC classification number: H10K59/8794 ,  H10K59/80515 ,  H10K59/80516 ,  H10K59/80521 ,  H10K59/80522 ,  H10K50/171

Abstract: A display device includes a light-emitting element that includes a first electrode, an second electrode, a light-emitting layer provided between the first electrode and the second electrode, a first function layer provided between the light-emitting layer and the second electrode and in contact with the second electrode, and a first cooling element that includes a third electrode. An extending portion of the second electrode at least partially overlaps the third electrode, and an extending portion of the first function layer overlaps the extending portion of the second electrode and is in contact with the extending portion of the second electrode and the third electrode.

公开(公告)号：US20230136993A1

公开(公告)日：2023-05-04

申请号：US17793593

申请日：2020-02-04

Applicant: SHARP KABUSHIKI KAISHA

Inventor： HIROFUMI YOSHIKAWA ,  TATSUYA RYOHWA ,  Masaki YAMAMOTO ,  TAKAHIRO DOE

IPC: H10K50/115 ,  H10K71/00 ,  H10K59/35 ,  C09K11/02 ,  C09K11/88

Abstract: A light-emitting element includes a light-emitting layer, and the light-emitting layer includes a plurality of quantum dots covered by shells containing a ferritin protein.

公开(公告)号：US20230337450A1

公开(公告)日：2023-10-19

申请号：US18033791

申请日：2020-10-29

Applicant: SHARP KABUSHIKI KAISHA

Inventor： TAKAHIRO DOE

IPC: H10K50/115

CPC classification number: H10K50/115

Abstract: A light-emitting element includes: a first anode; a first cathode; and a light-emitting layer between the first anode and the first cathode, the light-emitting layer containing a first quantum dot that emits light of a first color, wherein the first quantum dot includes: a first core; and a first shell around the first core, the first shell containing a transition metal oxide.

公开(公告)号：US20230276649A1

公开(公告)日：2023-08-31

申请号：US18015035

申请日：2020-07-22

Applicant: SHARP KABUSHIKI KAISHA

Inventor： HIROFUMI YOSHIKAWA ,  YOSHIHIRO UETA ,  TAKAHIRO DOE ,  Masaki YAMAMOTO ,  DAISUKE TOYOSHIMA

IPC: H10K50/16 ,  H10K50/115 ,  H10K71/12

CPC classification number: H10K50/16 ,  H10K50/115 ,  H10K71/125

Abstract: A light-emitting element includes: a first electrode; a second electrode disposed opposite the first electrode; a light-emitting layer disposed between the first electrode and the second electrode and containing quantum dots; and a carrier transport layer disposed between the first electrode and a surface of the light-emitting layer on a second electrode side, including a plurality of protrusions extending toward the second electrode side, and containing a carrier transport material, wherein at least parts of the plurality of protrusions of the carrier transport layer and at least parts of a plurality of gaps between the plurality of protrusions are covered by the quantum dots.

公开(公告)号：US20220344606A1

公开(公告)日：2022-10-27

申请号：US17762851

申请日：2019-10-02

Applicant: SHARP KABUSHIKI KAISHA

Inventor： HIROFUMI YOSHIKAWA ,  TATSUYA RYOHWA ,  Masumi KUBO ,  TAKAHIRO DOE ,  Masaki YAMAMOTO

IPC: H01L51/50 ,  H01L51/56

Abstract: A display device includes: ferritin encaging a first quantum dot and modified with a first peptide bound to a first pixel electrode; and ferritin encaging a second quantum dot and modified with a second peptide bound to a second pixel electrode. A first metal material and a second metal material are of different types.

公开(公告)号：US20220320191A1

公开(公告)日：2022-10-06

申请号：US17641761

申请日：2019-10-02

Applicant: SHARP KABUSHIKI KAISHA

Inventor： HIROFUMI YOSHIKAWA ,  TATSUYA RYOHWA ,  Masumi KUBO ,  TAKAHIRO DOE ,  Masaki YAMAMOTO

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

Abstract: A display device includes a plurality of pixel electrodes, a common electrode common to the plurality of pixel electrodes, and a light-emitting layer sandwiched between the plurality of pixel electrodes and the common electrode. The light-emitting layer includes quantum dots covered by ferritin. Each of the plurality of pixel electrodes and the quantum dots are bonded via a peptide modifying the ferritin.

公开(公告)号：US20220158108A1

公开(公告)日：2022-05-19

申请号：US17434347

申请日：2019-02-27

Applicant: SHARP KABUSHIKI KAISHA

Inventor： HIROFUMI YOSHIKAWA ,  TATSUYA RYOHWA ,  Masaki YAMAMOTO ,  TAKAHIRO DOE

IPC: H01L51/50

Abstract: A light-emitting element includes: an anode; a cathode; and a light-emitting layer between the anode and the cathode, wherein the light-emitting layer contains quantum dots, and the quantum dots have a number average particle diameter greater than or equal to DLO2 and less than or equal to 100 nm, where DLO2 is a particle diameter of the quantum dots when the quantum dots exhibit an energy gap, between a ground state and a first excited state of a conduction band thereof, that is equivalent to twice an LO phonon energy of a material for the quantum dots.

公开(公告)号：US20230255039A1

公开(公告)日：2023-08-10

申请号：US18014286

申请日：2020-07-29

Applicant: SHARP KABUSHIKI KAISHA

Inventor： TAKAHIRO DOE

IPC: H10K50/115 ,  H10K50/13 ,  H10K50/814 ,  H10K50/824

CPC classification number: H10K50/115 ,  H10K50/13 ,  H10K50/814 ,  H10K50/824

Abstract: A light-emitting device includes: an anode; a cathode; a light-emitting layer provided between the anode and the cathode, and containing a first light-emitting material emitting a first-color light and a second light-emitting material emitting a second-color light greater in peak wavelength than the first-color light, at least one of the first light-emitting material or the second light-emitting material being quantum dots; and a power supply unit controlling a frequency of a voltage to be applied between the anode and the cathode, in accordance with the first-color light and the second-color light.