公开(公告)号：US20220169921A1

公开(公告)日：2022-06-02

申请号：US17675459

申请日：2022-02-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tae Hyung KIM ,  Kwanghee KIM ,  Eun Joo JANG ,  Dae Young CHUNG ,  Sujin PARK

IPC: C09K11/02 ,  C09K11/88 ,  C09K11/56 ,  C09K11/70 ,  H01L33/06

Abstract: Quantum dots including semiconductor nanocrystals, methods of producing the same, and quantum dot solutions and electronic devices including the same. The quantum dots do not include cadmium, lead, or a combination thereof. The quantum dots include an organic ligand and a halogen on the surfaces, and the quantum dots are dispersible in an organic solvent to form organic solutions.

公开(公告)号：US20200263083A1

公开(公告)日：2020-08-20

申请号：US16791327

申请日：2020-02-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tae Hyung KIM ,  Kwanghee KIM ,  Eun Joo JANG ,  Dae Young CHUNG ,  Sujin PARK

IPC: C09K11/02 ,  C09K11/88

Abstract: Quantum dots including semiconductor nanocrystals, methods of producing the same, and quantum dot solutions and electronic devices including the same. The quantum dots do not include cadmium, lead, or a combination thereof. The quantum dots include an organic ligand and a halogen on the surfaces, and the quantum dots are dispersible in an organic solvent to form organic solutions.

公开(公告)号：US20200028105A1

公开(公告)日：2020-01-23

申请号：US16512954

申请日：2019-07-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hongkyu SEO ,  Moon Gyu HAN ,  Eun Joo JANG ,  Sujin PARK ,  Dae Young CHUNG

IPC: H01L51/50 ,  H01L33/50 ,  H01L51/44

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, the emission layer including quantum dots, and an electron auxiliary layer disposed between the emission layer and the second electrode, the electron auxiliary layer including nanoparticles and a small molecule organic compound and a display device including the same. The nanoparticles include a metal oxide including zinc, and an electron mobility of the small molecule organic compound is less than an electron mobility of the nanoparticles.

公开(公告)号：US20210226172A1

公开(公告)日：2021-07-22

申请号：US17226158

申请日：2021-04-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dae Young CHUNG ,  Moon Gyu HAN ,  Oul CHO ,  Tae Hyung KIM ,  Sujin PARK ,  Hongkyu SEO ,  Eun Joo JANG

IPC: H01L51/52 ,  H01L51/00 ,  H01L51/50 ,  H01L51/56 ,  C09K11/06 ,  C09K11/02

Abstract: An electroluminescent device including a first electrode, a hole transport layer disposed on the first electrode, a first emission layer disposed on the hole transport layer, the first emission layer including a first light emitting particle on which a first ligand and a second ligand having a hole transporting property are attached, a second emission layer disposed on the first emission layer, the second emission layer including a second light emitting particle on which a first ligand and a third ligand having an electron transporting property are attached, an electron transport layer disposed on the second emission layer, and a second electrode disposed on the electron transport layer, wherein a solubility of the second ligand in a solvent is different than a solubility of the third ligand in the solvent and a display device including the same.

公开(公告)号：US20210104696A1

公开(公告)日：2021-04-08

申请号：US17062162

申请日：2020-10-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sujin PARK ,  Yuho WON ,  Eun Joo JANG ,  Dae Young CHUNG ,  Sung Woo KIM ,  Jin A. KIM ,  Yong Seok HAN

IPC: H01L51/50 ,  H01L51/00

Abstract: An electroluminescent device includes a first electrode and a second electrode facing each other; a hole transport layer between the first electrode and the second electrode; a light emitting layer including a first light emitting layer disposed between the hole transport layer and the second electrode and including a first quantum dot and a second light emitting layer between the first light emitting layer and the second electrode and including a second quantum dot; and an electron transport layer between the light emitting layer and the second electrode. Each of the first and second light emitting layers emits first light, each of the first and second quantum dots has a core-shell structure including one or more shells, and the first and second quantum dots have different numbers of shells from each other or have different total thicknesses of the one or more shells from each other.

公开(公告)号：US20180374451A1

公开(公告)日：2018-12-27

申请号：US16065988

申请日：2016-12-13

Applicant: Samsung Electronics Co., Ltd.

Inventor： Hyunjoo KANG ,  Tae-Young KANG ,  Jaeyeon RHO ,  Yongsoung LEE ,  Chang-Youl LEE ,  Tae-Young HA ,  Sujin PARK ,  Kihyun YOON ,  In-Don JU ,  Jaemo CHOI

IPC: G09G5/10 ,  G06F3/14

Abstract: Disclosed are an electronic device and an operation method thereof according to various embodiment, the method comprising: reproducing first content on a first display unit having variable transparency; detecting an object in response to the first display unit; controlling transparency in at least a partial area of the first display unit on the basis of the object; and reproducing second content on a second display unit, disposed to be spaced from the first display unit.