公开(公告)号：US20210296605A1

公开(公告)日：2021-09-23

申请号：US17107411

申请日：2020-11-30

Applicant: Samsung Display Co., Ltd.

Inventor： Junwoo PARK ,  Myoungjin PARK ,  Sooho LEE ,  Yunhyuk KO ,  Sungwoon KIM ,  Minki NAM ,  Jaekook HA

IPC: H01L51/50

Abstract: A light-emitting device includes: a first electrode; a second electrode facing the first electrode; an emission layer between the first electrode and the second electrode and including quantum dots; a hole transport region between the first electrode and the emission layer; and an electron sink layer between the emission layer and the hole transport region and including an electron transport material, wherein the electron transport material includes a metal, a metal oxide, a metal-containing material, or any combination thereof.

公开(公告)号：US20240164130A1

公开(公告)日：2024-05-16

申请号：US18535417

申请日：2023-12-11

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Yunku JUNG ,  Minki NAM ,  Hyunmi DOH ,  Yunhyuk KO ,  Sungwoon KIM ,  Jaehoon KIM ,  Myoungjin PARK ,  JAE HONG PARK ,  Junwoo PARK

IPC: H10K50/115 ,  C09K11/06 ,  H10K50/00 ,  H10K50/12 ,  H10K50/844 ,  H10K50/86 ,  H10K59/38 ,  H10K71/00 ,  H10K85/30 ,  H10K85/60

CPC classification number: H10K50/115 ,  C09K11/06 ,  H10K50/00 ,  H10K50/12 ,  H10K50/844 ,  H10K50/865 ,  H10K59/38 ,  H10K71/00 ,  H10K85/30 ,  H10K85/631 ,  C09K2211/18 ,  H10K2102/103

Abstract: A quantum dot composition includes a quantum dot, a ligand to bind to a surface of the quantum dot, an additive having an amine group, and a precursor comprising an organometallic compound, the composition forming a modified quantum dot having a reformed surface characteristic. A light emitting element including the modified quantum dot may have improved lifespan, luminous efficiency, and material stability.

公开(公告)号：US20200212303A1

公开(公告)日：2020-07-02

申请号：US16533612

申请日：2019-08-06

Applicant: Samsung Display Co., Ltd.

Inventor： Dongwoo SHIN ,  Dukki KIM ,  Jaeyun KIM ,  Junwoo PARK ,  Sehun KIM ,  Jaekook HA

IPC: H01L51/00 ,  C09D11/52 ,  C09D11/102 ,  C09D11/30 ,  C08G61/12

Abstract: A composition for forming an organic layer in an organic light-emitting device includes a high-molecular-weight compound represented by Formula 1, having a molecular weight of about 50,000 or more; a non-arylamine-based low-molecular-weight compound represented by Formula 2, having a molecular weight of about 10,000 or less; and a solvent: wherein in Formula 2, Y is a substituted or unsubstituted C3-C60 carbocyclic group that does not include a moiety represented by When the composition is deposited and dried to form the organic layer, the organic layer is solvent resistant.

公开(公告)号：US20210371737A1

公开(公告)日：2021-12-02

申请号：US17219442

申请日：2021-03-31

Applicant: Samsung Display Co., Ltd.

Inventor： Yunku JUNG ,  Yunhyuk KO ,  Minki NAM ,  Sungwoon KIM ,  Junwoo PARK ,  Sooho LEE

IPC: C09K11/06 ,  H01L51/50

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 a tail portion containing a crosslinkable functional group. The quantum dot composition according to one or more embodiments may be applied to an emission layer of a light emitting element and a display device to improve luminous efficiency and service life of the light emitting element and the display device.

公开(公告)号：US20210347714A1

公开(公告)日：2021-11-11

申请号：US17248436

申请日：2021-01-25

Applicant: Samsung Display Co., Ltd.

Inventor： Junwoo PARK

IPC: C07C11/21 ,  H01L51/00

Abstract: An organic light emitting device of an embodiment of the present disclosure includes a first electrode, a hole transport region, an emission layer, an electron transport region, and a second electrode, stacked one by one, wherein the hole transport region includes a hole transport material derived from a crosslinking agent compound represented by Formula 1. The organic light emitting device may be manufactured through a wet process, and the emission efficiency and driving voltage properties of the organic light emitting device may be improved.

公开(公告)号：US20210035962A1

公开(公告)日：2021-02-04

申请号：US16932591

申请日：2020-07-17

Applicant: Samsung Display Co., Ltd.

Inventor： Yunku JUNG ,  Sungwoon KIM ,  Changhee LEE ,  Jaekook HA ,  Yunhyuk KO ,  Jaehoon KIM ,  Minki NAM ,  Hyunmi DOH ,  Myoungjin PARK ,  Jae Hong PARK ,  Junwoo PARK

IPC: H01L25/16 ,  H01L33/44 ,  H01L23/00

Abstract: Provided is a light emitting element according to embodiments which includes a body including a semiconductor layer and an active layer, and a ligand including a head portion bonded to a surface of the body, an end portion spaced apart from the body, and having a positive or a negative charge, and a chain portion connecting the head portion and the end portion.

公开(公告)号：US20160111656A1

公开(公告)日：2016-04-21

申请号：US14656148

申请日：2015-03-12

Applicant: SAMSUNG DISPLAY CO., LTD. ,  Korea Advanced Institute Of Science and Technology

Inventor： Jaekook HA ,  Bumjoon KIM ,  Junwoo PARK ,  Changyeon LEE

IPC: H01L51/00 ,  C08F26/06 ,  C08F26/02 ,  C07D487/14 ,  H01L27/32

CPC classification number: H01L51/0072 ,  C07D487/14 ,  C08F12/26 ,  C08F26/02 ,  C08F26/06 ,  C09D125/18 ,  H01L27/3248 ,  H01L51/004 ,  H01L51/0043 ,  H01L51/0061 ,  H01L51/0077 ,  H01L51/5056 ,  C08F212/14 ,  C08F212/32

Abstract: A compound for preparing a hole transport layer, an organic light-emitting device, and a flat display apparatus, the compound including a —N3 moiety.

Abstract translation: 用于制备空穴传输层的化合物，有机发光装置和平面显示装置，所述化合物包括-N 3部分。

公开(公告)号：US20220169920A1

公开(公告)日：2022-06-02

申请号：US17530779

申请日：2021-11-19

Applicant: Samsung Display Co., Ltd.

Inventor： Junwoo PARK

IPC: C09K11/02 ,  C09K11/88 ,  C09K11/08 ,  H01L51/00 ,  H01L51/50

Abstract: Disclosed are a quantum dot-containing material, a method of preparing the quantum dot-containing material, a composition including the quantum dot-containing material, and a light-emitting device including the quantum dot-containing material.

公开(公告)号：US20210074939A1

公开(公告)日：2021-03-11

申请号：US16895590

申请日：2020-06-08

Applicant: Samsung Display Co., Ltd.

Inventor： Yunku JUNG ,  Minki NAM ,  Hyunmi DOH ,  Yunhyuk KO ,  Sungwoon KIM ,  Jaehoon KIM ,  Myoungjin PARK ,  Jae Hong PARK ,  Junwoo PARK

IPC: H01L51/50 ,  H01L27/32 ,  H01L51/52 ,  H01L51/56 ,  H01L51/00 ,  C09K11/06

Abstract: A quantum dot composition includes a quantum dot, a ligand to bind to a surface of the quantum dot, an additive having an amine group, and a precursor comprising an organometallic compound, the composition forming a modified quantum dot having a reformed surface characteristic. A light emitting element including the modified quantum dot may have improved lifespan, luminous efficiency, and material stability.

公开(公告)号：US20200259093A1

公开(公告)日：2020-08-13

申请号：US16779428

申请日：2020-01-31

Applicant: Samsung Display Co., Ltd.

Inventor： Dukki KIM ,  Jaekook HA ,  Sehun KIM ,  Dongwoo SHIN ,  Donghoon KWAK ,  Junwoo PARK

IPC: H01L51/00 ,  C09D11/52 ,  C09D11/36 ,  C09D11/102

Abstract: Provided are a composition for forming an organic light-emitting device, a method of preparing an organic light-emitting device, and an organic light-emitting device. The method of preparing an organic light-emitting device includes: forming an organic layer including an emission layer on a first electrode, wherein the forming of the organic layer includes performing a solution process using a composition for forming an organic light-emitting device, the composition for forming an organic light-emitting device includes n kinds of solvent, a solvent (Sv1) having the highest boiling point among the n kinds of solvent and a solvent (Sv2) having the second highest boiling point among the n kinds of solvent satisfy Equation 1, n is an integer from 2 to 10, and the solvent (Sv1) having the highest boiling point among the n kinds of solvent is a compound represented by Formula 1.