公开(公告)号：US20220149249A1

公开(公告)日：2022-05-12

申请号：US17430481

申请日：2019-02-20

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Masumi KUBO

IPC: H01L33/50 ,  H01L33/00 ,  H01L33/40

Abstract: A light-emitting device includes, light-emitting elements each including a first electrode, a second electrode, and a quantum dot layer interposed between the first electrode and the second electrode. The quantum dot layer includes a quantum dot structure including a quantum dot having a core and a first shell, with which the core is coated, and a second shell, with which the first shell is coated. The first shell and the second shell have a crystal structure, and at least one set of the quantum dots adjacent to each other is connected to each other by the crystal structure of the second shell. Forming the quantum dot layer includes vaporizing a solvent of a solution in which a ligand is dispersed, cooling, and forming the second shell by epitaxial growth around the first shell in that order.

公开(公告)号：US20160327836A1

公开(公告)日：2016-11-10

申请号：US15108140

申请日：2014-08-29

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Hiroyuki MORIWAKI ,  Masumi KUBO ,  Kazutaka HANAOKA

IPC: G02F1/1343 ,  G02F1/1337 ,  G02F1/137 ,  G02F1/17

CPC classification number: G02F1/134309 ,  G02F1/1337 ,  G02F1/13439 ,  G02F1/137 ,  G02F1/17 ,  G02F1/172 ,  G02F1/19 ,  G02F2001/133742 ,  G02F2001/134381 ,  G02F2001/13706

Abstract: An optical device (100) includes: a first substrate (10) and a second substrate (20) opposing each other; an optical layer (30) interposed between the first substrate and the second substrate; and a first electrode (11) and a second electrode (12) to which different potentials can be applied. The optical layer includes a medium (31) and anisotropically-shaped particles (32) dispersed in the medium, the anisotropically-shaped particles having shape anisotropy. The alignment direction of the anisotropically-shaped particles changes depending on a voltage applied across the optical layer. The voltage applied across the optical layer is an oscillating voltage alternately including a first period in which an absolute value is relatively large and a second period in which an absolute value is relatively small.

Abstract translation: 光学装置（100）包括：彼此相对的第一基板（10）和第二基板（20）; 介于所述第一基板和所述第二基板之间的光学层（30）; 以及能够施加不同电位的第一电极（11）和第二电极（12）。 光学层包括分散在介质中的介质（31）和各向异性形状的颗粒（32），各向异性颗粒具有形状各向异性。 各向异性颗粒的排列方向根据施加在光学层上的电压而变化。 跨越光学层施加的电压是交替地包括绝对值相对较大的第一周期和绝对值相对较小的第二周期的振荡电压。

公开(公告)号：US20230422553A1

公开(公告)日：2023-12-28

申请号：US18039239

申请日：2020-11-30

Applicant: SHARP KABUSHIKI KAISHA

Inventor： YUSUKE SAKAKIBARA ,  Masumi KUBO

IPC: H10K59/121 ,  H01L21/66 ,  G09G3/32 ,  G09G3/00

CPC classification number: H10K59/1213 ,  H01L22/30 ,  G09G3/32 ,  G09G3/006 ,  G09G2330/12 ,  G09G2300/0842

Abstract: A display device includes a plurality of light-emitting elements each including: a first electrode; a second electrode; and a light-emitting layer between the first electrode and the second electrode, the plurality of light-emitting elements including: at least one main light-emitting element containing quantum dots in the light-emitting layer; and at least one set of compact light-emitting elements including a plurality of compact light-emitting elements smaller than the at least one main light-emitting element.

公开(公告)号：US20230053170A1

公开(公告)日：2023-02-16

申请号：US17793642

申请日：2020-02-06

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Masumi KUBO

IPC: H01L51/50 ,  H01L51/56

Abstract: A method for manufacturing a light-emitting device a first solution including a first solvent, quantum dots, a ligand, and a first inorganic precursor, the quantum dots each including a core and a first shell performing first heating of raising to a first temperature or higher, the first temperature being a higher temperature of a melting point of the ligand and a boiling point of the first solvent, and performing second heating of raising to a second temperature, the second temperature being higher than the first temperature and being a temperature at which the first inorganic precursor epitaxially grows and a second shell coating the first shell is formed to form a plurality of first quantum dots, and wherein a plurality of second quantum dots each including, in a core, the same material as a material of the second shells are also formed.

公开(公告)号：US20220140270A1

公开(公告)日：2022-05-05

申请号：US17430892

申请日：2019-02-20

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Masumi KUBO

IPC: H01L51/50 ,  H01L51/00

Abstract: A method for manufacturing a light-emitting device includes forming on a substrate, a first electrode, and forming a quantum dot layer. The forming the quantum dot layer includes performing first application involves applying a first solution on a position overlapping with the substrate; performing first light irradiation involves irradiating with light the position where the first solution is applied, to melt the ligand and vaporize the first solvent, performing second light irradiation involves irradiating the position with light to raise a temperature of the quantum dot; and performing third light irradiation involves irradiating the position with light to cause the first inorganic precursor to epitaxially grow around the first shell so as to form a second shell with which the first shell is coated. In the performing third light irradiation, at least one set of the quantum dots adjacent to each other is connected to each other via the second shell.

公开(公告)号：US20220131049A1

公开(公告)日：2022-04-28

申请号：US17430593

申请日：2019-02-20

Applicant: SHARP KABUSHIKI KAISHA

Inventor： Masumi KUBO

IPC: H01L33/50 ,  H01L33/00 ,  H01L33/40

Abstract: A method for manufacturing a light-emitting device includes forming the quantum dot layer. The forming the quantum dot layer includes: performing first application that involves applying a first solution on a position overlapping with the substrate; performing first light irradiation, that involves irradiating with light, from above the substrate, the position where the first solution is applied; performing second light irradiation, that involves irradiating the position with light to raise a temperature of the quantum dot; and performing third light irradiation, that involves irradiating the position with light to cause the first inorganic precursor to epitaxially grow around the first shell. In the performing third light irradiation, at least one set of the quantum dots adjacent to each other is connected to each other via the second shell.