公开(公告)号：US20200161551A1

公开(公告)日：2020-05-21

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: H01L51/00

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：US20200067005A1

公开(公告)日：2020-02-27

申请号：US16233567

申请日：2018-12-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kun Su PARK ,  Kwanghee KIM ,  Tae Ho KIM ,  Eun Joo JANG ,  Won Sik YOON

IPC: H01L51/50 ,  H01L51/00

Abstract: An electroluminescent device, a method of manufacturing the same, and a display device including the same.The electroluminescent device includes a first electrode, a hole transport layer disposed on the first electrode, an emission layer disposed on the hole transport layer and including light emitting particles, an electron transport layer disposed on the emission layer and including nanoparticles having electron transport capability, and a second electrode disposed on the electron transport layer, wherein at least a portion of the nanoparticles having electron transport capability include an inorganic oxide core represented by Chemical Formula 1, an organic ligand attached to a surface of the inorganic oxide core, and a metal-organic compound chemically bound to the surface of the inorganic oxide core. MxOy   Chemical Formula 1

公开(公告)号：US20200035935A1

公开(公告)日：2020-01-30

申请号：US16203666

申请日：2018-11-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chan Su KIM ,  Tae Ho KIM ,  Kun Su PARK ,  Sung Woo KIM ,  Eun Joo JANG

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

Abstract: A quantum dot device including an anode and a cathode facing each other, a quantum dot layer between the anode and the cathode and electron auxiliary layer between the quantum dot layer and the cathode, wherein the electron auxiliary layer includes at least one nanoparticle represented by Chemical Formula 1 and at least one metal halide represented by Chemical Formula 2, and a display device. Zn1-xMxO  Chemical Formula 1 Q+X−  Chemical Formula 2

公开(公告)号：US20190296255A1

公开(公告)日：2019-09-26

申请号：US16058176

申请日：2018-08-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tae Ho KIM ,  Chan Su KIM ,  Kun Su PARK ,  Eun Joo JANG ,  Sung Woo KIM ,  Hongkyu SEO

IPC: H01L51/50 ,  H01L51/56

Abstract: An electroluminescent device and a display device including the same are disclosed. The electroluminescent device includes a first electrode, an electron transport layer disposed on the first electrode and including inorganic oxide particles, a self-assembled monolayer disposed on the electron transport layer, an emission layer disposed on the self-assembled monolayer and including light emitting particles, a hole transport layer disposed on the emission layer, and a second electrode disposed on the hole transport layer.

公开(公告)号：US20190288230A1

公开(公告)日：2019-09-19

申请号：US16038752

申请日：2018-07-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Chan Su KIM ,  Tae Ho KIM ,  Kun Su PARK ,  Eun Joo JANG

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

Abstract: An electroluminescent device comprising a first electrode; a hole transport layer disposed on the first electrode; an emission layer disposed on the hole transport layer and comprising a plurality of light emitting particles; an electron transport layer disposed on the emission layer and comprising a metal oxide particle-organic polymer composite comprising a plurality of metal oxide particles and an organic polymer; and a second electrode disposed on the electron transport layer, wherein the organic polymer is present in the metal oxide particle-organic polymer composition in an amount of about 7 weight percent to about 30 weight percent based on a total weight of the electron transport layer.

公开(公告)号：US20190157596A1

公开(公告)日：2019-05-23

申请号：US16034442

申请日：2018-07-13

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sung Woo KIM ,  Tae Ho KIM ,  Eun Joo JANG ,  Hongkyu SEO ,  Sang Jin LEE ,  Dae Young CHUNG ,  Oul CHO

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

Abstract: A quantum dot device includes: a first electrode and a second electrode facing each other; a quantum dot layer between the first electrode and the second electrode, and an electron auxiliary layer between the quantum dot layer and the second electrode, the electron auxiliary layer including a first nanoparticle and a second nanoparticle which is larger than the first nanoparticle, wherein a work function of the first electrode is greater than a work function of the second electrode, and wherein a difference between a lowest unoccupied molecular orbital energy level of the quantum dot layer and a lowest unoccupied molecular orbital energy level of the electron auxiliary layer is less than about 1.1 electronvolts.