公开(公告)号：US20230263000A1

公开(公告)日：2023-08-17

申请号：US18015038

申请日：2020-07-20

Applicant: SHARP KABUSHIKI KAISHA

Inventor： JUN SAKUMA ,  YASUSHI ASAOKA

IPC: H10K50/13 ,  H10K50/115 ,  H10K71/10 ,  H10K59/35 ,  C09K11/88 ,  C09K11/70 ,  C09K11/08

CPC classification number: H10K50/131 ,  H10K50/115 ,  H10K71/10 ,  H10K59/35 ,  C09K11/883 ,  C09K11/70 ,  C09K11/0883 ,  B82Y20/00

Abstract: A light-emitting device includes a first light-emitting region in which a light emission peak wavelength is a first wavelength; a second light-emitting region in which a light emission peak wavelength is a second wavelength shorter than the first wavelength; a cathode disposed in the first light-emitting region and the second light-emitting region; an anode facing the cathode in the first light-emitting region and the second light-emitting region; a second light-emitting layer disposed between the cathode and the anode in the first light-emitting region and the second light-emitting region and having a light emission peak wavelength being the second wavelength; a first light-emitting layer disposed between the anode and the second light-emitting layer at least in the first light-emitting region and having a light emission peak wavelength being the first wavelength; and a first electron transport layer disposed between the first light-emitting layer and the second light-emitting layer in the first light-emitting region and having ionization energy higher than both of ionization energy of the first light-emitting layer and ionization energy of the second light-emitting layer.

公开(公告)号：US20230157044A1

公开(公告)日：2023-05-18

申请号：US17912497

申请日：2020-03-27

Applicant: SHARP KABUSHIKI KAISHA

Inventor： JUN SAKUMA ,  YASUSHI ASAOKA

IPC: H10K50/115 ,  H10K50/16 ,  H10K59/35

CPC classification number: H10K50/115 ,  H10K50/166 ,  H10K59/35 ,  H10K59/122

Abstract: A method for manufacturing a display device, including: a step of applying a first mixture obtained by mixing green quantum dots and a photosensitive resin on a green electron transport layer, an exposure step of pattern-exposing the first mixture to cure a portion of the first mixture, the portion being a green light-emitting layer; a development step of removing an uncured portion of the first mixture and developing the green light-emitting layer; and an etching step of etching the green electron transport layer with an etching solution that is an alkaline solution or an organic solvent using the green light-emitting layer as a mask.

公开(公告)号：US20220344610A1

公开(公告)日：2022-10-27

申请号：US17642417

申请日：2019-09-20

Applicant: SHARP KABUSHIKI KAISHA

Inventor： YASUSHI ASAOKA ,  SHIGERU AOMORI

IPC: H01L51/50 ,  H01L51/00

Abstract: A display device includes a plurality of pixels. Each of the plurality of pixels includes a first electrode, a second electrode, a light-emitting layer provided between the first electrode and the second electrode, a first charge transport layer provided between the first electrode and the light-emitting layer, and a second charge transport layer provided between the second electrode and the light-emitting layer. The first charge transport layer includes a first charge transport material and a first nanofiber.

公开(公告)号：US20220344550A1

公开(公告)日：2022-10-27

申请号：US17760556

申请日：2019-09-30

Applicant: SHARP KABUSHIKI KAISHA

Inventor： JUN SAKUMA ,  YASUSHI ASAOKA

IPC: H01L33/50 ,  H01L27/15

Abstract: A light-emitting element includes a first light-emitting layer including a first quantum dot and a second light-emitting layer including a second quantum dot provided between the cathode electrode and an anode electrode in order from the cathode electrode, the first quantum dot has a core-shell structure including a first core and a first shell, the second quantum dot has a core-shell structure including a second core and a second shell, and an energy level at a lower end of a conduction band of the first core is higher than an energy level at a lower end of a conduction band of the second core.

公开(公告)号：US20220173181A1

公开(公告)日：2022-06-02

申请号：US17598162

申请日：2019-03-28

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Sentaro KIDA ,  SHIGERU AOMORI ,  TSUYOSHI KAMADA ,  YASUSHI ASAOKA ,  JUN SAKUMA

IPC: H01L27/32 ,  H01L51/52

Abstract: Provided is a display element according to an aspect of the disclosure including a flattening film and, on the flattening film, a plurality of banks each having a linear shape, a plurality of active layers each having a linear shape and formed between adjacent banks, and an upper transparent electrode formed on each of the plurality of active layers. A cut line having a locally reduced height with reference to the flattening film is formed in each the plurality of banks, and the upper transparent electrode formed on one of the adjacent active layers and the upper transparent electrode formed on the other of the adjacent active layers are electrically connected via a conductive electrode formed in the cut line.

公开(公告)号：US20210351244A1

公开(公告)日：2021-11-11

申请号：US17277627

申请日：2018-09-21

Applicant: SHARP KABUSHIKI KAISHA

Inventor： YASUSHI ASAOKA ,  TSUYOSHI KAMADA ,  SHIGERU AOMORI

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

Abstract: A light-emitting element includes: pixel electrodes provided for individual subpixels of at least three colors; a common electrode provided facing each of the pixel electrodes; and light-emitting layers of each color provided between the common electrode and, respectively, each of the pixel electrodes, wherein one of each of the pixel electrodes and the common electrode is a cathode electrode and the other is an anode electrode and among the light-emitting layers of the at least three colors, a light-emitting layer of a color having a largest electron affinity extends in a state of being layered between the cathode electrode and each light-emitting layer of the other colors as well.

公开(公告)号：US20200096167A1

公开(公告)日：2020-03-26

申请号：US16470344

申请日：2017-12-21

Applicant: SHARP KABUSHIKI KAISHA

Inventor： YASUSHI ASAOKA ,  TORU KANNO ,  HIDEOMI YUI

IPC: F21S11/00 ,  G02B3/06 ,  G02B3/00 ,  G02B5/02

Abstract: A light-diffusion member includes a plurality of cylindrical lenses arrayed in a prescribed direction, wherein the cylindrical lenses are arrayed in a first direction and extended in a second direction that is perpendicular to the first direction, the cylindrical lenses each have a curved lens surface, and the lens surface has a height that continuously changes with a prescribed period in a cross-section of the cylindrical lens taken along a second imaginary plane that is perpendicular to a first imaginary plane containing both the first direction and the second direction and that is parallel to the second direction.

公开(公告)号：US20170363905A1

公开(公告)日：2017-12-21

申请号：US15535015

申请日：2015-12-10

Applicant: Sharp Kabushiki Kaisha

Inventor： SHOHEI KATSUTA ,  YASUSHI ASAOKA ,  SHO OCHI ,  HIDEOMI YUI ,  TSUYOSHI MAEDA ,  EMI YAMAMOTO

IPC: G02F1/1335

CPC classification number: G02F1/133504 ,  G02B5/00 ,  G02B5/02 ,  G02B5/0236 ,  G02B5/0247 ,  G02B5/0278 ,  G02F1/133512 ,  G02F1/133528 ,  G02F2201/50 ,  G02F2202/28 ,  G09F9/00

Abstract: A light-diffusion member (7) includes: a substrate (39) having light-transmitting properties; a light-diffusion portion (40) on a face of the substrate (39) facing a display medium (6); and a light-blocking layer (41) on a part of the face of the substrate (39) facing the display medium (6) other than where the light-diffusion portion (40) is provided. The light-diffusion portion (40) includes: a light-emitting end face (40a) in contact with the substrate (39); and a light-incident end face (40b) facing, and being larger in area than, the light-emitting end face (40a). The adhesive layer (42) adheres to light-incident end face (40a) and partly (42a) encroaches into a space (43) between the light-diffusion portion (40) and light-blocking layer (41).