公开(公告)号：US20250024729A1

公开(公告)日：2025-01-16

申请号：US18421276

申请日：2024-01-24

Applicant: Samsung Display Co., Ltd.

Inventor： Jaehoon Kim

IPC: H10K59/38 ,  H10K59/122

Abstract: A display apparatus includes: a first substrate; a light-emitting diode layer over the first substrate and including a light-emitting diode configured to emit light of a wavelength in a first wavelength band; a color-converting layer on the light-emitting diode layer and including a quantum-dot layer or a light-transmissive layer overlapping the light-emitting diode; a second substrate over the first substrate between the light-emitting diode layer and the color-converting layer and including a groove in a surface thereof facing the first substrate, the groove overlapping the light-emitting diode; and an ion-supplying layer filling the groove.

公开(公告)号：US11955468B2

公开(公告)日：2024-04-09

申请号：US16932591

申请日：2020-07-17

Applicant: Samsung Display Co., Ltd.

Inventor： Yunku Jung ,  Sungwoon Kim ,  Changhee Lee ,  Jaekook Ha ,  Yunhyuk Ko ,  Jaehoon Kim ,  Minki Nam ,  Hyunmi Doh ,  Myoungjin Park ,  Jae Hong Park ,  Junwoo Park

IPC: H01L25/16 ,  H01L23/00 ,  H01L33/44

CPC classification number: H01L25/167 ,  H01L24/32 ,  H01L24/83 ,  H01L33/44 ,  H01L2224/32137 ,  H01L2224/80143 ,  H01L2224/83085 ,  H01L2224/83896 ,  H01L2924/12041

Abstract: Provided is a light emitting element according to embodiments which includes a body including a semiconductor layer and an active layer, and a ligand including a head portion bonded to a surface of the body, an end portion spaced apart from the body, and having a positive or a negative charge, and a chain portion connecting the head portion and the end portion.

公开(公告)号：US12258504B2

公开(公告)日：2025-03-25

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 ,  H10K50/115 ,  H10K71/00 ,  H10K71/15 ,  H10K85/60

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：US12129416B2

公开(公告)日：2024-10-29

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 ,  B82Y20/00 ,  B82Y30/00 ,  B82Y40/00 ,  H10K50/115 ,  H10K102/00

CPC classification number: C09K11/06 ,  H10K50/115 ,  B82Y20/00 ,  B82Y30/00 ,  B82Y40/00 ,  C09K2211/10 ,  H10K2102/00

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：US11910703B2

公开(公告)日：2024-02-20

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 ,  H10K85/30 ,  C09K11/06 ,  H10K50/115 ,  H10K71/00

CPC classification number: H10K85/361 ,  C09K11/06 ,  H10K85/381 ,  C09K2211/10 ,  C09K2211/188 ,  H10K50/115 ,  H10K71/00

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：US11866627B2

公开(公告)日：2024-01-09

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 ,  C07C309/30 ,  C07C53/00 ,  C07C63/08 ,  C07F9/54 ,  C07C43/10 ,  C07C211/09 ,  C07C309/04 ,  H10K85/60 ,  H10K50/115 ,  H10K71/00 ,  H10K71/15

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 ,  H10K71/00 ,  H10K71/15

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：US11730003B2

公开(公告)日：2023-08-15

申请号：US17560161

申请日：2021-12-22

Applicant: Samsung Display Co., Ltd.

Inventor： Choelmin Jang ,  Byunghyuk Kwon ,  Changhee Lee ,  Myungsoo Huh ,  Cheollae Roh ,  Jaehoon Kim ,  Jeong Hye Choi

IPC: H01L51/50 ,  H10K30/80 ,  C09K11/08 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K50/86 ,  H10K50/115 ,  H10K59/12 ,  H10K59/38 ,  H10K71/00 ,  B82Y20/00 ,  H10K102/00

CPC classification number: H10K30/865 ,  C09K11/08 ,  H10K50/115 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K50/171 ,  H10K50/86 ,  H10K50/865 ,  H10K59/12 ,  H10K59/38 ,  H10K71/00 ,  B82Y20/00 ,  H10K2102/00 ,  H10K2102/351

Abstract: A light emitting diode according to embodiments of the present disclosure includes a first electrode, a second electrode opposite the first electrode, an emission layer between the first electrode and the second electrode, the emission layer including a quantum dot, a first charge transfer layer between the first electrode and the emission layer, a second charge transfer layer between the second electrode and the emission layer, and an insulating layer in at least one position between the first charge transfer layer and the emission layer, and/or between the second charge transfer layer and the emission layer, wherein the insulating layer includes an inorganic material. The light emitting diode and a display device including the same show improved life characteristics and emission efficiency properties.

公开(公告)号：US20220115617A1

公开(公告)日：2022-04-14

申请号：US17560161

申请日：2021-12-22

Applicant: Samsung Display Co., Ltd.

Inventor： Choelmin Jang ,  Byunghyuk Kwon ,  Changhee Lee ,  Myungsoo Huh ,  Cheollae Roh ,  Jaehoon Kim ,  Jeong Hye Choi

IPC: H01L51/50 ,  C09K11/08 ,  H01L27/32 ,  H01L51/52 ,  H01L51/56

Abstract: A light emitting diode according to embodiments of the present disclosure includes a first electrode, a second electrode opposite the first electrode, an emission layer between the first electrode and the second electrode, the emission layer including a quantum dot, a first charge transfer layer between the first electrode and the emission layer, a second charge transfer layer between the second electrode and the emission layer, and an insulating layer in at least one position between the first charge transfer layer and the emission layer, and/or between the second charge transfer layer and the emission layer, wherein the insulating layer includes an inorganic material. The light emitting diode and a display device including the same show improved life characteristics and emission efficiency properties.

公开(公告)号：US11239438B2

公开(公告)日：2022-02-01

申请号：US16714389

申请日：2019-12-13

Applicant: Samsung Display Co., Ltd.

Inventor： Choelmin Jang ,  Byunghyuk Kwon ,  Changhee Lee ,  Myungsoo Huh ,  Cheollae Roh ,  Jaehoon Kim ,  Jeong Hye Choi

IPC: H01L51/50 ,  C09K11/08 ,  H01L27/32 ,  H01L51/52 ,  H01L51/56 ,  B82Y20/00

Abstract: A light emitting diode according to embodiments of the present disclosure includes a first electrode, a second electrode opposite the first electrode, an emission layer between the first electrode and the second electrode, the emission layer including a quantum dot, a first charge transfer layer between the first electrode and the emission layer, a second charge transfer layer between the second electrode and the emission layer, and an insulating layer in at least one position between the first charge transfer layer and the emission layer, and/or between the second charge transfer layer and the emission layer, wherein the insulating layer includes an inorganic material. The light emitting diode and a display device including the same show improved life characteristics and emission efficiency properties.

公开(公告)号：US11959001B2

公开(公告)日：2024-04-16

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 ,  C09K11/06 ,  B82Y20/00 ,  B82Y30/00 ,  B82Y40/00 ,  H10K50/115 ,  H10K50/15 ,  H10K50/16 ,  H10K102/00

CPC classification number: C09K11/08 ,  C09K11/06 ,  B82Y20/00 ,  B82Y30/00 ,  B82Y40/00 ,  H10K50/115 ,  H10K50/15 ,  H10K50/16 ,  H10K2102/00

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.