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公开(公告)号：US20240274625A1
公开(公告)日：2024-08-15
申请号：US18432861
申请日：2024-02-05
Applicant: Samsung Display Co., LTD.
Inventor： Yungbin CHUNG , Changhee LEE , Yijoon AHN , Sungjoo KWON , Joonyong PARK , Hyuneok SHIN , Juhyun LEE , Samtae JEONG
IPC: H01L27/12 , C23C16/27 , C23C16/44 , C23C16/455 , H10K59/12 , H10K59/121
CPC classification number: H01L27/127 , C23C16/27 , C23C16/4408 , C23C16/45565 , C23C16/45574 , H01L27/1222 , H01L27/1225 , H01L27/1255 , H10K59/1201 , H10K59/1213
Abstract: An apparatus for manufacturing a display device includes a stage on which a display substrate is arranged, a nozzle portion facing the stage, where the nozzle portion supplies gas to the display substrate to form at least one selected from a base portion and a graphene layer on the display substrate, and a driver connected to at least one of the nozzle portion and the stage, where the driver linearly moves at least one selected from the nozzle portion and the stage in a predetermined direction. The nozzle portion forms the at least one selected from the base portion and the graphene layer on the display substrate based on a relative motion thereof with the stage.
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2.发明公开公开(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.
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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
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.
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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.
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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.
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Patent Agency Ranking
公开(公告)号：US20210214610A1
公开(公告)日：2021-07-15
申请号：US17034861
申请日：2020-09-28
Applicant: Samsung Display Co., Ltd. , Hannam University Institute for Industry-Academia Cooperation
Inventor： Yunhyuk KO , Kwangsup LEE , Prabhakaran PREM , Changhee LEE , Gyeongju KIM , Sinil CHOI
Abstract: A method of preparing a quantum dot, a quantum dot prepared by the method, an optical member including the quantum dot, and an apparatus including the quantum dot. The quantum dot may include: a core including a III-V compound; a first shell surrounding the core and including ZnSe; a second shell surrounding the first shell and including ZnSe1-xSx, wherein x may be a real number greater than 0 and smaller than 1; and a third shell surrounding the second shell and including ZnS. The method may include: forming the first shell from a first material including zinc and a second material including selenium in a solution; forming the second shell by adding to the solution a third material including zinc and a fourth material including selenium and sulfur; and forming the third shell by adding to the solution a fifth material including zinc.
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7.发明申请公开(公告)号：US20200313108A1
公开(公告)日：2020-10-01
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
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.
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公开(公告)号：US20220315441A1
公开(公告)日：2022-10-06
申请号：US17705988
申请日：2022-03-28
Applicant: Samsung Display Co., Ltd
Inventor： Sehun KIM , Changhee LEE , Seunguk NOH , Jingoo KANG , Yonghwi KIM , Jonghoon KIM , Hyunmi DOH , Myoungjin PARK , Yunku Jung
Abstract: A metal oxide composition includes: a solvent; a metal oxide; and a hydrogen cation source that includes a compound of Formula 1, or that includes a compound of Formula 2, or that includes any combination thereof: wherein, in Formulae 1 and 2, the variables are as described herein.
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公开(公告)号：US20210376278A1
公开(公告)日：2021-12-02
申请号：US17336011
申请日：2021-06-01
Applicant: Samsung Display Co., Ltd.
Inventor： Sooho LEE , Changhee LEE , Hyunmi DOH
IPC: H01L51/50 , H01L51/00 , H01L51/52 , H01L51/56 , C09K11/02 , C09K11/54 , C09K11/56 , C09K11/55 , C09K11/06
Abstract: Provided are a light-emitting device, an electronic apparatus including the same, and a method of manufacturing the light-emitting device, wherein the light-emitting device includes: a first electrode, a second electrode facing the first electrode, and an interlayer between the first electrode and the second electrode, wherein the interlayer includes an emission layer and an electron transport layer, the electron transport layer is between the emission layer and the second electrode, and the electron transport layer includes an electron transport particle, the electron transport particle includes a core and a shell covering the core, the core includes an oxide, a chalcogenide, or any combination thereof, and the shell includes a chalcogenide, the chalcogenide of the core being the same as or different from the chalcogenide of the shell.
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公开(公告)号：US20210217965A1
公开(公告)日：2021-07-15
申请号：US17030031
申请日：2020-09-23
Applicant: Samsung Display Co., Ltd.
Inventor： Hyunmi DOH , Changhee LEE , Myoungjin PARK , Jaekook HA
Abstract: A light-emitting device includes a first electrode, an emission layer, an electron transport layer, a metal-nucleation inducing layer, and a second electrode. The metal-nucleation inducing layer is in direct contact with the second electrode, and includes a metal-nucleation inducing material having at least one metal-nucleation inducing group. The second electrode includes a metal-containing film that is hybridized with the metal-nucleation inducing material. The metal-nucleation inducing group is a π electron-deficient nitrogen-containing C1-C60 cyclic group that is unsubstituted or substituted with at least one R1 or a group represented by one of Formulae 1A to 1E, and does not comprise a group represented by *—C(═O)(OH) and a cyano group. The emission efficiency and/or lifespan of the light-emitting device may be improved because of the metal-nucleation inducing layer.
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