公开(公告)号：US20220230581A1

公开(公告)日：2022-07-21

申请号：US17578173

申请日：2022-01-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Oul CHO ,  Tae Hyung KIM ,  Ilyoung LEE ,  Eun Joo JANG ,  Won Sik YOON

IPC: G09G3/32

Abstract: A light emitting element includes a first electrode, a second electrode, and a light emission layer interposed between the first electrode and the second electrode, where an emission efficiency of the light emission layer varies based on a voltage applied to at least one selected from the first electrode and the second electrode.

公开(公告)号：US20220149307A1

公开(公告)日：2022-05-12

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 ,  H01L51/00

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：US20210296608A1

公开(公告)日：2021-09-23

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：US20210273190A1

公开(公告)日：2021-09-02

申请号：US17318460

申请日：2021-05-12

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：US20210184147A1

公开(公告)日：2021-06-17

申请号：US17123292

申请日：2020-12-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jaejun CHANG ,  Kwanghee KIM ,  Won Sik YOON ,  Eun Joo JANG ,  Oul CHO

IPC: H01L51/50

Abstract: A light-emitting device including a first electrode, a second electrode, and a light-emitting film disposed between the first electrode and the second electrode, and a method of producing the device. The light-emitting film includes a fluorine-containing organic salt, and quantum dots that do not include cadmium, lead, or a combination thereof, and the fluorine-containing organic salt includes a substituted or unsubstituted C1 to C30 hydrocarbon group, a non-metallic element, fluorine, and at least one of boron or phosphorus, and the non-metallic element includes carbon, nitrogen, oxygen, phosphorus, sulfur, or selenium.

公开(公告)号：US20200266348A1

公开(公告)日：2020-08-20

申请号：US16791163

申请日：2020-02-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tae Ho KIM ,  Won Sik YOON ,  Eun Joo JANG

IPC: H01L51/00 ,  C09K11/06

Abstract: A light emitting device 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 plurality of quantum dots and metal carboxylate having at least one hydrocarbon group of at least one carbon atoms, and the plurality of quantum dots includes a first organic ligand, and does not include cadmium and lead, and a method of manufacturing the same.

公开(公告)号：US20200083450A1

公开(公告)日：2020-03-12

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: H01L51/00

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.