公开(公告)号：US11597848B2

公开(公告)日：2023-03-07

申请号：US17092918

申请日：2020-11-09

Applicant: Samsung Display Co., Ltd.

Inventor： Junbo Sim ,  Dukki Kim ,  Hyojin Ko ,  Changhee Lee ,  Jaekook Ha

IPC: H01L51/00 ,  C09D11/36 ,  C09D11/033 ,  C09D11/50 ,  H01L51/56

Abstract: An inkjet composition for an inkjet printer, a light-emitting device including the same, and a method of manufacturing the light-emitting device are provided. The ink composition may include light-emitting diodes and a solvent. The solvent may have a first viscosity at a first temperature section that may be greater than a second viscosity at a second temperature section. The solvent may include an ester compound of citric acid, glycol, alkanediol, alkanolamine, alkenic acid, alkenol, a pyrrolidone group-containing compound, glycerol, a compound represented by Formula 1, a compound represented by Formula 2, or any combination thereof: Substituents in Formula 1 and Formula 2 may be understood as described in connection with the detailed description. Each of the light-emitting diodes may have a size in a range of about 0.1 μm to about 10 μm.

公开(公告)号：US20230011105A1

公开(公告)日：2023-01-12

申请号：US17807693

申请日：2022-06-17

Applicant: Samsung Display Co., Ltd. ,  Hannam University Institute for Industry- Academia Cooperation

Inventor： Yunhyuk Ko ,  Changhee Lee ,  Prem PRABHAKARAN ,  Dongryeol Whang ,  Gyeongju Kim ,  Kwangsup Lee

IPC: C09K11/02 ,  C09K11/88

Abstract: A quantum dot, a method of manufacturing the quantum dot, a composition including the quantum dot, an optical member including the quantum dot, and an electronic apparatus including the quantum dot are disclosed. The quantum dot includes: a nanomaterial; and a first ligand arranged on a surface of the nanomaterial, wherein the nanomaterial includes a core and a shell that covers at least a part of the core, wherein the first ligand includes a condensed polycyclic group in which two or more rings are condensed.

公开(公告)号：US20220293683A1

公开(公告)日：2022-09-15

申请号：US17511964

申请日：2021-10-27

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Dongjin Kang ,  Changhee Lee

IPC: H01L27/28 ,  H01L27/30 ,  H01L27/32

Abstract: A display apparatus includes: a first unit pixel including a plurality of light-emitting diodes, and a second unit pixel including a plurality of light-emitting diodes and a photodetector diode. Each of the plurality of light-emitting diodes includes a first electrode, a second electrode facing the first electrode, and an emission layer disposed between the first electrode and the second electrode, and the photodetector diode includes a third electrode, a fourth electrode facing the third electrode, an active layer disposed between the third electrode and the fourth electrode, and a color filter layer disposed between the fourth electrode and the active layer.

公开(公告)号：US20220204799A1

公开(公告)日：2022-06-30

申请号：US17534335

申请日：2021-11-23

Applicant: Samsung Display Co., Ltd.

Inventor： Sungwoon Kim ,  Changhee Lee ,  Hyunmi Doh ,  Sehun Kim

IPC: C09D11/52 ,  H01L51/00

Abstract: An ink composition includes: a solvent; and an electron transporting material substantially dispersed in the solvent and of Formula 1, wherein the ink composition has an Ohnesorge number of about 0.1 to about 0.2: [Ar1]b1-[(L1)a1-R1]c1  Formula 1 wherein the variables are defined herein.

公开(公告)号：US20210376244A1

公开(公告)日：2021-12-02

申请号：US17333354

申请日：2021-05-28

Applicant: Samsung Display Co., Ltd.

Inventor： Hyojin KO ,  Changhee Lee ,  Dukki Kim ,  Sehun Kim ,  Youngil Kim ,  Seungmook Lee ,  Jaekook Ha

IPC: H01L51/00 ,  C09D11/52 ,  C09D11/38

Abstract: According to one aspect of the invention, a hole-transporting ink composition for a light emitting device, the hole-transporting ink composition includes an adhesion-promoting compound represented by Formula 1 and a hole-transporting compound: A1—B1—C1   Formula 1 wherein, in Formula 1, the variables are defined above.