公开(公告)号：US11450826B2

公开(公告)日：2022-09-20

申请号：US17083832

申请日：2020-10-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tae Ho Kim ,  Won Sik Yoon ,  Jeong Hee Lee ,  Eun Joo Jang ,  Oul Cho

IPC: H01L33/26 ,  H01L51/50 ,  H01L51/52 ,  H01L51/56 ,  H01L27/32

Abstract: A light emitting device includes: a first electrode and a second electrode facing each other, an emissive layer disposed between the first electrode and the second electrode and including a quantum dot, an electron auxiliary layer disposed between the emissive layer and the second electrode and including a plurality of nanoparticles, and a polymer layer between a portion of the second electrode and the electron auxiliary layer, wherein the nanoparticles include a metal oxide including zinc, wherein the second electrode has a first surface facing a surface of the electron auxiliary layer and a second surface opposite to the first surface, and the polymer layer is disposed on a portion of the second surface and a portion of the surface of the electron auxiliary layer, and wherein the polymer layer includes a polymerization product of a thiol compound and an unsaturated compound having at least two carbon-carbon unsaturated bonds.

公开(公告)号：US20200212333A1

公开(公告)日：2020-07-02

申请号：US16811637

申请日：2020-03-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Moon Gyu Han ,  Dae Young Chung ,  Kwanghee Kim ,  Eun Joo Jang ,  Chan Su Kim ,  Kun Su Park ,  Won Sik Yoon

IPC: H01L51/50 ,  H01L51/56

Abstract: An electroluminescent device includes a first electrode and a second electrode facing each other; an emission layer disposed between the first electrode and the second electrode and including a plurality of quantum dots and a first hole transporting material having a substituted or unsubstituted C4 to C20 alkyl group attached to a backbone structure; a hole transport layer disposed between the emission layer and the first electrode and including a second hole transporting material; and an electron transport layer disposed between the emission layer and the second electrode.

公开(公告)号：US12161005B2

公开(公告)日：2024-12-03

申请号：US17522316

申请日：2021-11-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kwanghee Kim ,  Hongkyu Seo ,  Won Sik Yoon ,  Oul Cho ,  Tae Hyung Kim ,  Jaeyong Lee ,  Eun Joo Jang

IPC: H01L51/50 ,  H10K50/11 ,  H10K50/115 ,  H10K71/12 ,  H10K85/40 ,  H10K101/30 ,  H10K101/40

Abstract: A light emitting device including a first electrode and a second electrode each having a surface opposite the other, a light emitting layer disposed between the first electrode and the second electrode, and an electronic auxiliary layer disposed between the light emitting layer and the second electrode, wherein the electron auxiliary layer includes metal oxide nanoparticles and an orthosilicate compound.

公开(公告)号：US11963376B2

公开(公告)日：2024-04-16

申请号：US17944394

申请日：2022-09-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tae Ho Kim ,  Won Sik Yoon ,  Jeong Hee Lee ,  Eun Joo Jang ,  Oul Cho

IPC: H10K50/115 ,  H10K50/81 ,  H10K50/84 ,  H10K59/00 ,  H10K71/00 ,  H10K102/10

CPC classification number: H10K50/115 ,  H10K50/81 ,  H10K50/84 ,  H10K71/00 ,  H10K59/00 ,  H10K2102/103

Abstract: A light emitting device includes: a first electrode and a second electrode facing each other, an emissive layer disposed between the first electrode and the second electrode and including a quantum dot, an electron auxiliary layer disposed between the emissive layer and the second electrode and including a plurality of nanoparticles, and a polymer layer between a portion of the second electrode and the electron auxiliary layer, wherein the nanoparticles include a metal oxide including zinc, wherein the second electrode has a first surface facing a surface of the electron auxiliary layer and a second surface opposite to the first surface, and the polymer layer is disposed on a portion of the second surface and a portion of the surface of the electron auxiliary layer, and wherein the polymer layer includes a polymerization product of a thiol compound and an unsaturated compound having at least two carbon-carbon unsaturated bonds.

公开(公告)号：US11957046B2

公开(公告)日：2024-04-09

申请号：US16562601

申请日：2019-09-06

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Moon Gyu Han ,  Dae Young Chung ,  Kwanghee Kim ,  Eun Joo Jang ,  Chan Su Kim ,  Kun Su Park ,  Won Sik Yoon

IPC: H10K85/60 ,  H10K50/115 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K71/00 ,  H10K71/12 ,  H10K102/00

CPC classification number: H10K85/633 ,  H10K85/6572 ,  H10K50/115 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K71/00 ,  H10K71/12 ,  H10K2102/331 ,  H10K2102/351

Abstract: An electroluminescent device includes a first electrode and a second electrode facing each other; an emission layer disposed between the first electrode and the second electrode and including a plurality of quantum dots and a first hole transporting material having a substituted or unsubstituted C4 to C20 alkyl group attached to a backbone structure; a hole transport layer disposed between the emission layer and the first electrode and including a second hole transporting material; and an electron transport layer disposed between the emission layer and the second electrode.

公开(公告)号：US11611054B2

公开(公告)日：2023-03-21

申请号：US17199977

申请日：2021-03-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Heejae Lee ,  Moon Gyu Han ,  Won Sik Yoon ,  Eun Joo Jang ,  Dae Young Chung ,  Tae Hyung Kim ,  Hyo Sook Jang

IPC: H01L51/50

Abstract: A quantum dot device including a first electrode and a second electrode each having a surface opposite the other, a quantum dot layer disposed between the first electrode and the second electrode, and an electron auxiliary layer disposed between the quantum dot layer and the second electrode, wherein the electron auxiliary layer includes inorganic nanoparticles including an alkaline-earth metal, and an alkali metal, an alkali metal compound, or a combination thereof, and an electronic device including the quantum dot device.

公开(公告)号：US11171291B2

公开(公告)日：2021-11-09

申请号：US16372861

申请日：2019-04-02

Applicant: Samsung Electronics Co., Ltd.

Inventor： Won Sik Yoon ,  Moon Gyu Han ,  Tae Ho Kim ,  Eun Joo Jang ,  Hongkyu Seo

IPC: H01L51/50 ,  H01L51/00 ,  H01L51/56 ,  H01L51/52

Abstract: An electroluminescent device and including a first electrode and a second electrode facing each other; an emission layer disposed between the first electrode and the second electrode, wherein the emission layer includes a quantum dot and a first electron transporting material represented by Chemical Formula 1; a hole transport layer disposed between the emission layer and the first electrode; and an electron transport layer disposed between the emission layer and the second electrode: wherein, the definitions of groups and variables in Chemical Formula 1 are the same as described in the specification.

公开(公告)号：US10854836B2

公开(公告)日：2020-12-01

申请号：US16530253

申请日：2019-08-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tae Ho Kim ,  Won Sik Yoon ,  Jeong Hee Lee ,  Eun Joo Jang ,  Oul Cho

IPC: H01L51/50 ,  H01L51/52 ,  H01L51/56 ,  H01L27/32

Abstract: A light emitting device includes: a first electrode and a second electrode facing each other, an emissive layer disposed between the first electrode and the second electrode and including a quantum dot, an electron auxiliary layer disposed between the emissive layer and the second electrode and including a plurality of nanoparticles, and a polymer layer between a portion of the second electrode and the electron auxiliary layer, wherein the nanoparticles include a metal oxide including zinc, wherein the second electrode has a first surface facing a surface of the electron auxiliary layer and a second surface opposite to the first surface, and the polymer layer is disposed on a portion of the second surface and a portion of the surface of the electron auxiliary layer, and wherein the polymer layer includes a polymerization product of a thiol compound and an unsaturated compound having at least two carbon-carbon unsaturated bonds.

公开(公告)号：US12225747B2

公开(公告)日：2025-02-11

申请号：US18512352

申请日：2023-11-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Won Sik Yoon ,  Ju Hyun Kim ,  Ha Il Kwon ,  Kwang Hee Kim ,  Taehyung Kim ,  Su Jin Park ,  Dae Young Chung

IPC: H01L51/50 ,  H10K50/115 ,  H10K50/15 ,  H10K50/16

Abstract: A quantum dot device including an anode and a cathode, a light emitting layer disposed between the anode and the cathode, the light emitting layer comprising quantum dots, a first hole auxiliary layer disposed on the anode, the first hole auxiliary layer including poly(3,4-ethylenedioxythiophene)-polystyrenesulfonate or a derivative thereof (PEDOT:PSS), a second hole auxiliary layer disposed on the first hole auxiliary layer and including a hole transport material different from the PEDOT:PSS, wherein the light emitting layer is disposed on the second hole auxiliary layer, wherein the first hole auxiliary layer has a first surface facing the anode and a second surface facing the second hole auxiliary layer, and the second surface includes a surface modification region including a surface modification material having a carboxylic acid group, a phosphonic acid group, a sulfonic acid group, or a salt thereof. An electronic device that includes the quantum dot device.

公开(公告)号：US12016241B2

公开(公告)日：2024-06-18

申请号：US17171008

申请日：2021-02-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Won Sik Yoon ,  Moon Gyu Han ,  Kwanghee Kim ,  Heejae Lee ,  Eun Joo Jang ,  Tae Hyung Kim ,  Hyo Sook Jang

IPC: H10K85/00 ,  B82Y20/00 ,  B82Y30/00 ,  B82Y40/00 ,  H10K50/11 ,  H10K50/115 ,  H10K50/16 ,  H10K50/17 ,  H10K71/00 ,  H10K101/40 ,  H10K102/00

CPC classification number: H10K85/00 ,  B82Y20/00 ,  B82Y30/00 ,  B82Y40/00 ,  H10K50/11 ,  H10K50/115 ,  H10K50/167 ,  H10K50/171 ,  H10K71/00 ,  H10K2101/40 ,  H10K2102/331

Abstract: A quantum dot device including a first electrode and a second electrode each having a surface opposite the other, a quantum dot layer disposed between the first electrode and the second electrode, an electron transport layer disposed between the quantum dot layer and the second electrode and including first inorganic nanoparticles and a first organic material, and an electron injection layer disposed between the electron transport layer and the second electrode and including second inorganic nanoparticles and a second organic material, wherein a ratio by weight of an amount of the second organic material to a total amount of the second inorganic nanoparticles and the second organic material in the electron injection layer is less than a ratio by weight of an amount of the first organic material to a total amount of the first inorganic nanoparticles and the first organic material in the electron transport layer. An electronic device including the quantum dot device.