公开(公告)号：US20210371736A1

公开(公告)日：2021-12-02

申请号：US17192388

申请日：2021-03-04

Applicant: Samsung Display Co., Ltd.

Inventor： Changhee LEE ,  Dukki KIM ,  Hyojin KO ,  Sehun KIM ,  Jaehoon KIM ,  Hyunmi DOH ,  Yunku JUNG ,  Jaekook HA

IPC: C09K11/06 ,  C07C309/04 ,  H01L51/00 ,  C07C309/30 ,  C07C53/00 ,  C07C63/08 ,  C07F9/54 ,  C07C43/10 ,  C07C211/09

Abstract: A quantum dot composition includes a quantum dot, and a ligand bonded to a surface of the quantum dot, wherein the ligand includes a head portion bonded to the surface of the quantum dot and containing a polar solvent dissociative functional group, and a tail portion connected to the head portion. A quantum dot composition according to an embodiment is used to form an emission layer of a light emitting element to enhance luminous efficiency of the light emitting element including an emission layer formed through the quantum dot composition.

公开(公告)号：US20220315441A1

公开(公告)日：2022-10-06

申请号：US17705988

申请日：2022-03-28

Applicant: Samsung Display Co., Ltd

Inventor： Sehun KIM ,  Changhee LEE ,  Seunguk NOH ,  Jingoo KANG ,  Yonghwi KIM ,  Jonghoon KIM ,  Hyunmi DOH ,  Myoungjin PARK ,  Yunku Jung

IPC: C01G9/02 ,  C01G9/00 ,  C09K11/54

Abstract: A metal oxide composition includes: a solvent; a metal oxide; and a hydrogen cation source that includes a compound of Formula 1, or that includes a compound of Formula 2, or that includes any combination thereof: wherein, in Formulae 1 and 2, the variables are as described herein.

公开(公告)号：US20210376278A1

公开(公告)日：2021-12-02

申请号：US17336011

申请日：2021-06-01

Applicant: Samsung Display Co., Ltd.

Inventor： Sooho LEE ,  Changhee LEE ,  Hyunmi DOH

IPC: H01L51/50 ,  H01L51/00 ,  H01L51/52 ,  H01L51/56 ,  C09K11/02 ,  C09K11/54 ,  C09K11/56 ,  C09K11/55 ,  C09K11/06

Abstract: Provided are a light-emitting device, an electronic apparatus including the same, and a method of manufacturing the light-emitting device, wherein the light-emitting device includes: a first electrode, a second electrode facing the first electrode, and an interlayer between the first electrode and the second electrode, wherein the interlayer includes an emission layer and an electron transport layer, the electron transport layer is between the emission layer and the second electrode, and the electron transport layer includes an electron transport particle, the electron transport particle includes a core and a shell covering the core, the core includes an oxide, a chalcogenide, or any combination thereof, and the shell includes a chalcogenide, the chalcogenide of the core being the same as or different from the chalcogenide of the shell.

公开(公告)号：US20210242403A1

公开(公告)日：2021-08-05

申请号：US16997770

申请日：2020-08-19

Applicant: Samsung Display Co., Ltd.

Inventor： Hyunmi DOH ,  Jaehoon KIM ,  Jaehong PARK

IPC: H01L51/00 ,  C09K11/70

Abstract: A light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an interlayer between the first electrode and the second electrode and including an emission layer, wherein the interlayer includes i) a hole transport region between the first electrode and the emission layer, and ii) an electron transport region between the emission layer and the second electrode, and the hole transport region includes a Group 11 metal chalcogenide compound including a Group 11 metal and a chalcogenide element with the proviso that oxygen is excluded from the chalcogenide element.

公开(公告)号：US20210217965A1

公开(公告)日：2021-07-15

申请号：US17030031

申请日：2020-09-23

Applicant: Samsung Display Co., Ltd.

Inventor： Hyunmi DOH ,  Changhee LEE ,  Myoungjin PARK ,  Jaekook HA

IPC: H01L51/00 ,  C01G9/02

Abstract: A light-emitting device includes a first electrode, an emission layer, an electron transport layer, a metal-nucleation inducing layer, and a second electrode. The metal-nucleation inducing layer is in direct contact with the second electrode, and includes a metal-nucleation inducing material having at least one metal-nucleation inducing group. The second electrode includes a metal-containing film that is hybridized with the metal-nucleation inducing material. The metal-nucleation inducing group is a π electron-deficient nitrogen-containing C1-C60 cyclic group that is unsubstituted or substituted with at least one R1 or a group represented by one of Formulae 1A to 1E, and does not comprise a group represented by *—C(═O)(OH) and a cyano group. The emission efficiency and/or lifespan of the light-emitting device may be improved because of the metal-nucleation inducing layer.

公开(公告)号：US20200328367A1

公开(公告)日：2020-10-15

申请号：US16812123

申请日：2020-03-06

Applicant: Samsung Display Co., Ltd.

Inventor： Kyoungwon PARK ,  Minki NAM ,  Hyunmi DOH ,  Sungwoon KIM ,  Jae Hong PARK ,  Yunku JUNG

IPC: H01L51/50 ,  H01L27/32 ,  H01L51/00

Abstract: A light emitting device may include a first electrode, a second electrode opposite to the first electrode, and an emission layer disposed between the first electrode and the second electrode. The emission layer may include a manganese complex compound and a quantum dot. It is possible to improve life span and light emitting efficiency characteristics of the light emitting device.