公开(公告)号：US20250056922A1

公开(公告)日：2025-02-13

申请号：US18718014

申请日：2022-02-18

Applicant: Sharp Display Technology Corporation

Inventor： Keisuke KITANO ,  Yoji MATSUDE ,  Yoshihiro UETA

IPC: H01L33/06 ,  C09K11/08 ,  H01L25/075

Abstract: A quantum-dot-containing composition contains: either quantum dots each having a surface provided with only one equivalent crystal plane, or quantum dots each having a surface provided with two or more different equivalent crystal planes; and one selected from (A), (B), and (C) below: (A) two or more compounds; (B) one or more compounds, and single atoms formed of one or more halogens or chalcogens; and (C) single atoms formed of two or more halogens or chalcogens.

公开(公告)号：US20240423086A1

公开(公告)日：2024-12-19

申请号：US18702239

申请日：2021-12-29

Applicant: Sharp Display Technology Corporation

Inventor： Hirofumi YOSHIKAWA ,  Kazuki GOTO ,  Yoshihiro UETA

IPC: H10K85/30 ,  B82Y20/00 ,  C09K11/02 ,  H10K50/115 ,  H10K71/12

Abstract: A light-emitting element includes an EML including a QD, a halogen ligand including a halogen element, and a plurality of types of organic ligands composed of organic compounds.

公开(公告)号：US20250107315A1

公开(公告)日：2025-03-27

申请号：US18728096

申请日：2022-02-17

Applicant: Sharp Display Technology Corporation

Inventor： Yusuke SAKAKIBARA ,  Yoshihiro UETA

IPC: H10K50/115 ,  H10K59/35

Abstract: In a display device, a light-emitting layer of at least one subpixel includes a first region, and a second region having a number of inorganic ligands contained per unit volume less than a number of the inorganic ligands contained per unit volume in the first region. The first region includes a central portion of the light-emitting layer, and the second region includes at least one end portion among end portions, of the light-emitting layer, adjacent to other adjacent subpixels.

公开(公告)号：US20240397743A1

公开(公告)日：2024-11-28

申请号：US18685601

申请日：2021-10-15

Applicant: SHARP DISPLAY TECHNOLOGY CORPORATION

Inventor： Yoshihiro UETA ,  Takayuki NAKA

IPC: H10K50/17 ,  C09K11/02 ,  C09K11/56 ,  C09K11/88 ,  H10K71/15

Abstract: Provided is a hole injection layer provided between an anode and a light-emitting layer that includes at least one type of solvent with high polarity and low vapor pressure.

公开(公告)号：US20240373660A1

公开(公告)日：2024-11-07

申请号：US18686435

申请日：2021-10-25

Applicant: Sharp Display Technology Corporation

Inventor： Yoshihiro UETA

IPC: H10K50/115 ,  C09K11/02 ,  C09K11/08 ,  H10K50/18 ,  H10K59/35 ,  H10K101/30 ,  H10K101/40 ,  H10K102/00

Abstract: A light-emitting element includes the following: a first electrode and a second electrode; a light-emitting layer disposed between the first electrode and the second electrode; and a functional layer disposed between the light-emitting layer and the second electrode, wherein the light-emitting layer has a first quantum dot portion including a first quantum dot, and a second quantum dot portion including a second quantum dot, and disposed between the first quantum dot portion and the functional layer, and one of the first quantum dot portion and the second quantum dot portion contains halogen elements at a predetermined concentration, and the other of the first quantum dot portion and the second quantum dot portion contains no halogen elements or contains halogen elements at a lower concentration than the predetermined concentration.

公开(公告)号：US20250133902A1

公开(公告)日：2025-04-24

申请号：US18685612

申请日：2021-10-15

Applicant: Sharp Display Technology Corporation

Inventor： Yoshihiro UETA ,  Takayuki NAKA

IPC: H10K50/155 ,  H10K50/115 ,  H10K50/17 ,  H10K102/00

Abstract: A light-emitting layer includes quantum dots, a hole injection layer provided between an anode and the light-emitting layer with one face in contact with the anode includes nanoparticles, and an average particle diameter of the nanoparticles included in the hole injection layer is less than an average particle diameter of the quantum dots included in the light-emitting layer.

公开(公告)号：US20240381683A1

公开(公告)日：2024-11-14

申请号：US18686493

申请日：2021-10-25

Applicant: Sharp Display Technology Corporation

Inventor： Yoshihiro UETA ,  Takayuki NAKA

IPC: H10K50/115 ,  H10K50/16

Abstract: A light-emitting element includes a first electrode and a second electrode, a light-emitting layer disposed between the first electrode and the second electrode, and a charge function layer disposed between the light-emitting layer and the second electrode. The light-emitting layer includes a quantum dot layer including a plurality of quantum dots, and the charge function layer includes a nanoparticle layer including a plurality of nanoparticles. An average particle diameter of the plurality of nanoparticles is larger than an average particle diameter of the plurality of quantum dots.

公开(公告)号：US20240349574A1

公开(公告)日：2024-10-17

申请号：US18293674

申请日：2021-10-01

Applicant: Sharp Display Technology Corporation

Inventor： Yoshihiro UETA ,  Takayuki NAKA

IPC: H10K59/80 ,  H10K59/12 ,  H10K59/122 ,  H10K102/00

CPC classification number: H10K59/80 ,  H10K59/1201 ,  H10K59/122 ,  H10K2102/351

Abstract: An electron transport layer provided between a cathode and a light-emitting layer has pores above a vicinity region of a boundary line between a top face of an anode and a side face of a bank, the vicinity region including the boundary line.