公开(公告)号：US20240141228A1

公开(公告)日：2024-05-02

申请号：US18407326

申请日：2024-01-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Changhee LEE ,  Dukki KIM ,  Hyojin KO ,  Sehun KIM ,  Jaehoon KIM ,  Hyunmi DOH ,  Yunku JUNG ,  Jaekook HA

IPC: C09K11/06 ,  C07C43/10 ,  C07C53/00 ,  C07C63/08 ,  C07C211/09 ,  C07C309/04 ,  C07C309/30 ,  C07F9/54 ,  H10K85/60

CPC classification number: C09K11/06 ,  C07C43/10 ,  C07C53/00 ,  C07C63/08 ,  C07C211/09 ,  C07C309/04 ,  C07C309/30 ,  C07F9/5407 ,  C07F9/5442 ,  H10K85/60 ,  C09K2211/10 ,  C09K2211/1007 ,  H10K50/115

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 containing a polar solvent dissociative functional group, and a tail portion connected to the head portion. A quantum dot composition according to an embodiment is used to form an emission layer of a light emitting element to enhance luminous efficiency of the light emitting element including an emission layer formed through the quantum dot composition.

公开(公告)号：US20230227718A1

公开(公告)日：2023-07-20

申请号：US18096690

申请日：2023-01-13

Applicant: Samsung Display Co., Ltd.

Inventor： Wonjun PARK ,  Dukki KIM ,  Jongwoo SHIN ,  Sangyeop LEE ,  Sehun KIM ,  Jaekook HA

IPC: C09K11/08 ,  H10K50/115 ,  H10K71/15

CPC classification number: C09K11/0811 ,  H10K50/115 ,  H10K71/15 ,  H10K2102/302

Abstract: Provided are a metal oxide composition, a light-emitting device using the metal oxide composition, and an electronic apparatus including the light-emitting device. The metal oxide composition includes a solvent including a first solvent and a second solvent, and a metal oxide, wherein the first solvent and the second solvent are different from each other, an amount of the first solvent is greater than an amount of the second solvent, and a boiling point of the second solvent is greater than a boiling point of the first solvent.

公开(公告)号：US20220056291A1

公开(公告)日：2022-02-24

申请号：US17220671

申请日：2021-04-01

Applicant: Samsung Display Co., Ltd.

Inventor： Sehun KIM ,  Taeheon KANG ,  Dukki KIM ,  Heunggyu KIM ,  Seunguk NOH ,  Hyeran MUN ,  Wonjun PARK ,  Juyon LEE ,  Jaekook HA

IPC: C09D11/36 ,  C09D11/033 ,  C09D11/52 ,  H01L51/00

Abstract: An ink composition for a light-emitting device includes: a phosphine oxide-based charge transport organic material; a first solvent represented by Formula 1; and a second solvent represented by Formula 2: HOR1(O)mR2OH  Formula 1 (HO)aR11O(R12O)nR13(OH)b.  Formula 2

公开(公告)号：US20210066632A1

公开(公告)日：2021-03-04

申请号：US16855985

申请日：2020-04-22

Applicant: Samsung Display Co., Ltd.

Inventor： Minki NAM ,  Yunku JUNG ,  Jaehong PARK ,  Dukki KIM ,  Sungwoon KIM

IPC: H01L51/50 ,  H05B33/14 ,  H01L51/00 ,  H01L51/56

Abstract: A quantum dot composition includes quantum dots and a leveling agent, wherein the leveling agent includes a first repeating unit represented by Formula 1 and a second repeating unit represented by Formula 2: A light-emitting device and a method of manufacturing the same are also provided.

公开(公告)号：US20190326520A1

公开(公告)日：2019-10-24

申请号：US16391985

申请日：2019-04-23

Applicant: Samsung Display Co., Ltd.

Inventor： Sehun KIM ,  Dukki KIM ,  Seunguk NOH ,  Dongwoo SHIN ,  Jaekook HA ,  Eungdo KIM ,  Eunju NAM ,  Hyunwoo LEE ,  Jaesung LIM

IPC: H01L51/00 ,  H01L51/50

Abstract: An organic light-emitting device includes a first hole transport region including a polymer compound that includes a repeating unit derived from a compound including a moiety represented by Formula 1A and a second hole transport region including a first compound and a second compound, the first compound including a repeating unit represented by Formula 1, the second compound being a compound represented by Formula 1, and the third compound being a compound represented by Formula 3.

公开(公告)号：US20230265306A1

公开(公告)日：2023-08-24

申请号：US18172286

申请日：2023-02-21

Applicant: Samsung Display Co., Ltd.

Inventor： Sangyeop LEE ,  Jongwoo SHIN ,  Dukki KIM ,  Sehun KIM ,  Wonjun PARK ,  Jaekook HA

IPC: C09D11/50 ,  H10K50/16 ,  H10K50/115 ,  C09D11/033 ,  C09K11/55 ,  B82Y30/00

CPC classification number: C09D11/50 ,  H10K50/16 ,  H10K50/115 ,  C09D11/033 ,  C09K11/55 ,  B82Y30/00

Abstract: An ink composition for a light-emitting device, the ink composition including: a metal oxide; and a mixed solvent composition including a first solvent, a second solvent, and a third solvent,



wherein the first solvent includes one hydroxyl group and has a boiling point of 160° C. to 270° C., the second solvent includes one hydroxyl group and has a boiling point of 270° C. to 350° C., and the third solvent includes two or more hydroxyl groups and has a boiling point of 270° C. to 350° C.

公开(公告)号：US20210371738A1

公开(公告)日：2021-12-02

申请号：US17219653

申请日：2021-03-31

Applicant: Samsung Display Co., Ltd.

Inventor： Changhee LEE ,  Yunku JUNG ,  Hyunmi DOH ,  Hyojin KO ,  Dukki KIM ,  Sehun KIM ,  Jaehoon KIM ,  Jaekook HA

IPC: C09K11/06 ,  G03F7/004 ,  H01L51/50

Abstract: A quantum dot composition includes a quantum dot having a surface to which a ligand is bonded, and a photoacid generator. 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, thereby improving luminous efficiency of the light emitting element.

公开(公告)号：US20210371732A1

公开(公告)日：2021-12-02

申请号：US17198752

申请日：2021-03-11

Applicant: Samsung Display Co., Ltd.

Inventor： Changhee LEE ,  Sehun KIM ,  Hyojin KO ,  Dukki KIM ,  Jaehoon KIM ,  Hyunmi DOH ,  Yunku JUNG ,  Jaekook HA

IPC: C09K11/02 ,  H01L51/50 ,  H01L51/56

Abstract: A method for manufacturing a light emitting element includes: forming a first electrode; forming a hole transport region on a first electrode; forming an emission layer on the hole transport region; forming an electron transport region on the emission layer; and forming a second electrode on the electron transport region, wherein the forming of the emission layer includes providing a quantum dot composition containing a quantum dot and a ligand bonded to a surface of the quantum dot, to form a preliminary emission layer; and increasing the layer density of the preliminary emission layer by about 5% or greater, thereby improving a luminous efficiency of the light emitting element.

公开(公告)号：US20210269662A1

公开(公告)日：2021-09-02

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: C09D11/36 ,  C09D11/033 ,  C09D11/50 ,  H01L51/00 ,  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：US20210238435A1

公开(公告)日：2021-08-05

申请号：US17025399

申请日：2020-09-18

Applicant: Samsung Display Co., Ltd.

Inventor： Junbo SIM ,  Hyojin KO ,  Dukki KIM ,  Jonghyuk KANG ,  Changhee LEE ,  Jaehoon JUNG ,  Jaekook HA

IPC: C09D11/36 ,  C09D11/326 ,  C08L75/16 ,  C08G69/48 ,  H01L31/18

Abstract: Provided are an ink composition, a light-emitting apparatus using the ink composition, and a method of manufacturing the light-emitting apparatus. The ink composition may include a light-emitting device, a solvent, and an organic thickener, and the organic thickener is a polymeric compound including at least one group represented by Formula 1: wherein in Formula 1, X, R1, n1, and R2 may respectively be understood by referring to the descriptions of X, R1, n1, and R2 provided in the detailed description.