公开(公告)号：US20240324272A1

公开(公告)日：2024-09-26

申请号：US18437551

申请日：2024-02-09

Applicant: Samsung Display Co., LTD.

Inventor： Yun Ku JUNG ,  Yunhyuk KO ,  Sehun KIM ,  Jonghoon KIM ,  Seung Uk NOH ,  Won-Jun PARK ,  Chul Soon PARK ,  Jongwoo SHIN ,  Sooho LEE ,  Jae Kook HA

IPC: H10K50/16 ,  H10K102/00

CPC classification number: H10K50/166 ,  H10K2102/351

Abstract: A light emitting device includes: a first electrode that is a reflective electrode; a first electron transport layer disposed on the first electrode; a second electron transport layer disposed on the first electron transport layer; an emission layer disposed on the second electron transport layer, and a second electrode positioned on the emission layer and that is a transflective electrode, wherein the first electron transport layer and the second electron transport layer include different metal oxides, and a thickness of the first electron transport layer is greater than a thickness of the second electron transport layer.

公开(公告)号：US20230209860A1

公开(公告)日：2023-06-29

申请号：US18084837

申请日：2022-12-20

Applicant: Samsung Display Co., Ltd.

Inventor： Yunku JUNG ,  Yunhyuk KO ,  Hyekyoung CHOI ,  Changyeol HAN

IPC: H10K50/16 ,  H10K50/15 ,  H10K50/115 ,  C09K11/89 ,  C09K11/88 ,  C09K11/74 ,  C09K11/70 ,  C09K11/64 ,  C09K11/62 ,  C09K11/58 ,  C09K11/08

CPC classification number: H10K50/16 ,  H10K50/15 ,  H10K50/115 ,  C09K11/89 ,  C09K11/883 ,  C09K11/7442 ,  C09K11/7492 ,  C09K11/70 ,  C09K11/64 ,  C09K11/62 ,  C09K11/582 ,  C09K11/0811 ,  H10K2101/30

Abstract: A light-emitting device and an electronic apparatus including the light-emitting device are provided. 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. The interlayer includes an emission layer, a hole transport region between the first electrode and the emission layer, and an electron transport region between the emission layer and the second electrode. The emission layer includes a first quantum dot, the hole transport region includes a second quantum dot, and the electron transport region includes a third quantum dot. The first quantum dot to the third quantum dot may be understood by referring to the description of the first quantum dot to the third quantum dot provided herein.

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：US20210301202A1

公开(公告)日：2021-09-30

申请号：US17203538

申请日：2021-03-16

Applicant: Samsung Display Co., Ltd. ,  Hongik University Industry-Academia Cooperation Foundation

Inventor： Yunhyuk KO ,  Heesun YANG ,  Changhee LEE ,  Kyunghye KIM ,  Sungwoon KIM ,  Jungho JO

IPC: C09K11/62 ,  H01L51/50 ,  C09K11/70 ,  C09K11/08 ,  C09K11/56 ,  H05B33/14 ,  C01G9/08 ,  C01B19/04 ,  C01G15/00

Abstract: Provided are a quantum dot, a method of preparing the quantum dot, an optical member including the quantum dot, and an electronic device including the quantum dot. The quantum dot includes a core including indium (In), A1, and A2; and a shell covering the core. A1 is a Group V element, A2 is a Group III element other than indium, and the core includes a first region, and a second region covering the first region. The first region does not include A2, and includes indium and A1, and the second region includes indium, A1, and A2, and indium and A2 are alloyed with each other in the second region.

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.