公开(公告)号：US20210376242A1

公开(公告)日：2021-12-02

申请号：US17152640

申请日：2021-01-19

Applicant: Samsung Display Co., Ltd.

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

IPC: H01L51/00 ,  C09K11/06

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, a connecting portion connected to the head portion and including a metal, and a tail portion coordinated to the metal of the connecting portion. The quantum dot composition according to the present embodiments is used to form an emission layer of a light emitting element, and may thus increase service life and luminous efficiency of the light emitting element including the emission layer formed using the quantum dot composition.

公开(公告)号：US20210371739A1

公开(公告)日：2021-12-02

申请号：US17212630

申请日：2021-03-25

Applicant: Samsung Display Co., Ltd.

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

IPC: C09K11/08

Abstract: A quantum dot composition includes a quantum dot having a surface to which a ligand is bonded, and a thermal decomposition auxiliary compound. The quantum dot composition 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 and the display device.

公开(公告)号：US20210371736A1

公开(公告)日：2021-12-02

申请号：US17192388

申请日：2021-03-04

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 ,  C07C309/04 ,  H01L51/00 ,  C07C309/30 ,  C07C53/00 ,  C07C63/08 ,  C07F9/54 ,  C07C43/10 ,  C07C211/09

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：US20200212303A1

公开(公告)日：2020-07-02

申请号：US16533612

申请日：2019-08-06

Applicant: Samsung Display Co., Ltd.

Inventor： Dongwoo SHIN ,  Dukki KIM ,  Jaeyun KIM ,  Junwoo PARK ,  Sehun KIM ,  Jaekook HA

IPC: H01L51/00 ,  C09D11/52 ,  C09D11/102 ,  C09D11/30 ,  C08G61/12

Abstract: A composition for forming an organic layer in an organic light-emitting device includes a high-molecular-weight compound represented by Formula 1, having a molecular weight of about 50,000 or more; a non-arylamine-based low-molecular-weight compound represented by Formula 2, having a molecular weight of about 10,000 or less; and a solvent: wherein in Formula 2, Y is a substituted or unsubstituted C3-C60 carbocyclic group that does not include a moiety represented by When the composition is deposited and dried to form the organic layer, the organic layer is solvent resistant.

公开(公告)号：US20190326519A1

公开(公告)日：2019-10-24

申请号：US16375806

申请日：2019-04-04

Applicant: Samsung Display Co., Ltd.

Inventor： Dongwoo SHIN ,  Dukki KIM ,  Sehun KIM ,  Jaeyun KIM ,  Jongwon PARK ,  Seungmook LEE ,  Jaekook HA

IPC: H01L51/00 ,  C07D209/86 ,  C07D307/91

Abstract: Provided are an organic light-emitting device including an arylamine-based compound including a thermally decomposable group, and an arylamine-based compound including a thermally decomposable group. The organic light-emitting device includes: a first electrode; a second electrode facing a first electrode; and an organic layer between the first electrode and the second electrode and including an emission layer, the organic layer including an arylamine-based compound in which the thermally decomposable group has been thermally decomposed and removed from the arylamine-based compound including the thermally decomposable group.

公开(公告)号：US20210376193A1

公开(公告)日：2021-12-02

申请号：US17331510

申请日：2021-05-26

Applicant: Samsung Display Co., Ltd.

Inventor： Yunhyuk KO ,  Changhee LEE ,  Yunku JUNG ,  Dukki KIM ,  Jongwon PARK ,  Jaekook HA

IPC: H01L33/32 ,  H01L33/04 ,  H01L33/00

Abstract: Provided are a light-emitting device, a method of preparing the light-emitting device, an ink composition including the light-emitting device, and an apparatus including the light-emitting device. The light-emitting device may include: a semiconductor region including a first semiconductor layer, a second semiconductor layer, and an active layer between the first semiconductor layer and the second semiconductor layer; a first protective layer on at least one portion of a surface of the semiconductor region and including a Group III-V compound; and a second protective layer on the first protective layer and including a metal oxide.

公开(公告)号：US20210246308A1

公开(公告)日：2021-08-12

申请号：US17012573

申请日：2020-09-04

Applicant: Samsung Display Co., Ltd.

Inventor： Dongwoo SHIN ,  Heunggyu KIM ,  Hyeran MUN ,  Dukki KIM ,  Sehun KIM ,  Seungmook LEE ,  Jaekook HA

IPC: C08L79/02 ,  C08G73/02 ,  C08K5/54 ,  H01L51/00 ,  C08G61/10

Abstract: A composition, an interlayer manufactured therefrom, and an apparatus including the interlayer are provided. The composition includes a polymer compound represented by Formula 1, a non-arylamine-based compound represented by Formula 2, and a solvent: The substituents in Formulae 1 and 2 may be understood as described in connection with the detailed description.

公开(公告)号：US20210226093A1

公开(公告)日：2021-07-22

申请号：US16943829

申请日：2020-07-30

Applicant: Samsung Display Co., Ltd.

Inventor： Yunku JUNG ,  Changhee LEE ,  Yunhyuk KO ,  Dukki KIM ,  Jongwon PARK ,  Jaekook HA

IPC: H01L33/26 ,  H01L25/075

Abstract: A light-emitting device (LED) includes a first semiconductor layer, a second semiconductor layer facing the first semiconductor layer, an insulating layer arranged to at least partially surround outer surfaces of the first semiconductor layer and the second semiconductor layer, and a first ligand bonded to a surface of the insulating layer and a second ligand bonded to the first ligand.

公开(公告)号：US20200259093A1

公开(公告)日：2020-08-13

申请号：US16779428

申请日：2020-01-31

Applicant: Samsung Display Co., Ltd.

Inventor： Dukki KIM ,  Jaekook HA ,  Sehun KIM ,  Dongwoo SHIN ,  Donghoon KWAK ,  Junwoo PARK

IPC: H01L51/00 ,  C09D11/52 ,  C09D11/36 ,  C09D11/102

Abstract: Provided are a composition for forming an organic light-emitting device, a method of preparing an organic light-emitting device, and an organic light-emitting device. The method of preparing an organic light-emitting device includes: forming an organic layer including an emission layer on a first electrode, wherein the forming of the organic layer includes performing a solution process using a composition for forming an organic light-emitting device, the composition for forming an organic light-emitting device includes n kinds of solvent, a solvent (Sv1) having the highest boiling point among the n kinds of solvent and a solvent (Sv2) having the second highest boiling point among the n kinds of solvent satisfy Equation 1, n is an integer from 2 to 10, and the solvent (Sv1) having the highest boiling point among the n kinds of solvent is a compound represented by Formula 1.

公开(公告)号：US20190326516A1

公开(公告)日：2019-10-24

申请号：US16391607

申请日：2019-04-23

Applicant: Samsung Display Co., Ltd.

Inventor： Sehun KIM ,  Dukki KIM ,  Jaekook HA ,  Jaeyun KIM

IPC: H01L51/00

Abstract: Provided are an organic light-emitting device and a method of manufacturing the same. The organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; and an organic layer between the first electrode and the second electrode and including an emission layer. The organic layer includes a hole transport region between the first electrode and the emission layer. The hole transport region also includes a first compound and a second compound, or includes the first compound and a third compound.