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公开(公告)号：US20210009893A1
公开(公告)日：2021-01-14
申请号：US16924658
申请日：2020-07-09
Applicant: Samsung Display Co., Ltd.
Inventor： Sehun KIM , Changhee LEE , Junbo SIM , Jaekook HA
Abstract: A quantum dot-containing material includes: a quantum dot-containing complex including a quantum dot and a first matrix material; and a second matrix material, wherein the quantum dot is dispersed in the first matrix material, the quantum dot-containing complex is dispersed in the second matrix material, and a refractive index of the first matrix material is greater than that of the second matrix material.
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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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15.发明申请公开(公告)号：US20200321535A1
公开(公告)日：2020-10-08
申请号：US16721613
申请日：2019-12-19
Inventor： SooYoung PARK , SEHUN KIM , JiEon KWON , Hyojeong KIM , ChiHyun RYOO , Changhee LEE , HYEIN JEONG , Jongseok HAN
IPC: H01L51/00
Abstract: An organic electroluminescence device of an embodiment includes oppositely disposed first electrode and second electrode, and a plurality of organic layers disposed between the first electrode and the second electrode, wherein at least one among the organic layers includes a compound represented by Formula 1 below. Improved emission efficiency and color purity properties may be shown.
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Patent Agency Ranking
公开(公告)号：US20230413598A1
公开(公告)日：2023-12-21
申请号：US18322945
申请日：2023-05-24
Applicant: Samsung Display Co., Ltd.
Inventor： Sehun KIM , Changhee LEE , Yeo Geon Yoon
IPC: H10K50/828 , H10K50/15 , H10K50/17 , H10K50/16 , C09K11/06
CPC classification number: H10K50/828 , H10K50/15 , H10K50/171 , H10K50/16 , C09K11/06 , H10K2102/102
Abstract: A light-emitting device in which a hole injection layer is disposed between an emission layer and a second electrode, and the hole injection layer includes graphene and contacts the second electrode, and a first electrode is a cathode.
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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
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.
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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
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.
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公开(公告)号：US20210301202A1
公开(公告)日：2021-09-30
申请号：US17203538
申请日：2021-03-16
Inventor： Yunhyuk KO , Heesun YANG , Changhee LEE , Kyunghye KIM , Sungwoon KIM , Jungho JO
IPC: C09K11/62 , H01L51/50 , C09K11/70 , C09K11/08 , C09K11/56 , H05B33/14 , C01G9/08 , C01B19/04 , C01G15/00
Abstract: Provided are a quantum dot, a method of preparing the quantum dot, an optical member including the quantum dot, and an electronic device including the quantum dot. The quantum dot includes a core including indium (In), A1, and A2; and a shell covering the core. A1 is a Group V element, A2 is a Group III element other than indium, and the core includes a first region, and a second region covering the first region. The first region does not include A2, and includes indium and A1, and the second region includes indium, A1, and A2, and indium and A2 are alloyed with each other in the second region.
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20.发明申请公开(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.
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