公开(公告)号：US20250011645A1

公开(公告)日：2025-01-09

申请号：US18662018

申请日：2024-05-13

Applicant: Samsung Display Co., LTD. ,  Hannam University Institute for Industry-Academia Cooperation

Inventor： WON-JUN PARK ,  Dong Ryeol WHANG ,  SEHUN KIM ,  Daeho HWANG

IPC: C09K11/02 ,  B82Y15/00 ,  B82Y20/00 ,  B82Y30/00 ,  B82Y40/00 ,  C09K11/88 ,  H05B33/14 ,  H10K50/115 ,  H10K50/15 ,  H10K50/16

Abstract: A quantum dot complex includes a quantum dot, a first ligand bonded to a surface of the quantum dot and including a thiol group at an end of the first ligand, and a second ligand different from the first ligand, bonded to a surface of the quantum dot, and including a thiol group at an end of the second ligand and a carboxyl group at an opposite end of the second ligand.

公开(公告)号：US20250051177A1

公开(公告)日：2025-02-13

申请号：US18652634

申请日：2024-05-01

Applicant: Samsung Display Co., Ltd.

Inventor： Jungho JO ,  SEHUN KIM ,  WON-JUN PARK ,  CHUL SOON PARK ,  JONGWOO SHIN ,  Chungman YU

IPC: C01G19/02 ,  H10K50/115 ,  H10K50/16 ,  H10K85/40

Abstract: An electronic transport composition including inorganic particles (each) represented by Formula 1, and a solvent represented by Formula 2, and when the electron transport composition is applied to a light-emitting element, luminous efficiency characteristics and element lifespan characteristics may be improved. Zn1-xMxO  Formula 1 R1—O—(R2—O)n—R3  Formula 2

公开(公告)号：US20230389405A1

公开(公告)日：2023-11-30

申请号：US18108627

申请日：2023-02-12

Applicant: Samsung Display Co., Ltd.

Inventor： HOI-LIM KIM ,  SANGHEE YU ,  GYUBONG KIM ,  SEHUN KIM ,  JUYON LEE ,  SUN-GYU JUNG ,  HYUNG UK CHO

IPC: H10K71/40 ,  H10K59/35

CPC classification number: H10K71/421 ,  H10K59/353

Abstract: A method for manufacturing a light emitting device includes: providing a base layer and forming an electron transport layer including first and second transport regions. The forming of the electron transport layer includes: applying an electron transport composition including a metal oxide and a photoacid generator such that first and second preliminary transport regions are formed, and irradiating the first and second preliminary transport regions with light, and in the irradiating with the light, the amount of light per unit area irradiated on the first preliminary transport region is different from the amount of light per unit area irradiated on the second preliminary transport region.

公开(公告)号：US20230284480A1

公开(公告)日：2023-09-07

申请号：US18067543

申请日：2022-12-16

Applicant: Samsung Display Co., Ltd.

Inventor： MYOUNGJIN PARK ,  JINGOO KANG ,  SEHUN KIM ,  YOUNGIL KIM ,  JUYON LEE

IPC: H10K59/122 ,  H10K50/15 ,  H10K50/16 ,  H10K50/115 ,  H10K50/125 ,  H10K59/38 ,  H10K50/17 ,  H10K85/60 ,  C09K11/67 ,  C09K11/66 ,  C09K11/60 ,  C09K11/57

CPC classification number: H10K59/122 ,  H10K50/15 ,  H10K50/16 ,  H10K50/115 ,  H10K50/125 ,  H10K59/38 ,  H10K50/171 ,  H10K85/60 ,  C09K11/671 ,  C09K11/662 ,  C09K11/605 ,  C09K11/574

Abstract: An electronic device including first to third light emitting regions and a dummy region is provided. The electronic device includes a base layer, and a display element layer including a pixel defining film on the base layer, light emitting elements divided by the pixel defining film, and a reduction preventing layer containing a reduction preventing agent, and the light emitting elements each include an electron transport region containing a metal oxide. The electronic device may have improved electron transport function of the electron transport region by the reduction preventing agent contained in the reduction preventing layer, thereby improving the luminous efficiency.

公开(公告)号：US20250098431A1

公开(公告)日：2025-03-20

申请号：US18742773

申请日：2024-06-13

Applicant: Samsung Display Co., Ltd.

Inventor： WONKYU CHOE ,  YOONSEOK KA ,  SEHUN KIM ,  KYONGSUB KIM ,  Jaeyoul KIM

IPC: H10K59/122 ,  H10K59/12 ,  H10K59/38 ,  H10K59/80

Abstract: A display device is provided to include a base layer in which a pixel region and a peripheral region adjacent to the pixel region are defined, a pixel defining film which is provided on the base layer and in which a light emitting opening corresponding to the pixel region is defined, a light emitting element which is provided in the light emitting opening and generates first color light, and an encapsulation layer provided on the light emitting element, wherein the encapsulation layer includes a first inorganic encapsulation layer provided on the light emitting element, a polymer layer which is provided on the first inorganic encapsulation layer and includes a base resin and an organic acid derivative, an organic encapsulation layer provided on the polymer layer, and a second inorganic encapsulation layer provided on the organic encapsulation layer.

公开(公告)号：US20180240982A1

公开(公告)日：2018-08-23

申请号：US15700344

申请日：2017-09-11

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： SEHUN KIM ,  Sooyoung Park ,  Chihyun Ryoo ,  Illhun Cho ,  Junghoon Yang ,  Seyoung Jung ,  Hyein Jeong

IPC: H01L51/00 ,  C07D265/38 ,  C07D213/16

CPC classification number: H01L51/0071 ,  C07D213/16 ,  C07D265/38 ,  H01L51/0059

Abstract: A polycyclic compound and an organic light-emitting device including the same are provided. The polycyclic compound is represented by Formula 1:

公开(公告)号：US20180130949A1

公开(公告)日：2018-05-10

申请号：US15721332

申请日：2017-09-29

Applicant: Samsung Display Co., Ltd.

Inventor： SEHUN KIM ,  Jongwon PARK ,  Jaekook HA ,  Jaehong KIM ,  Seunguk NOH

IPC: H01L51/00 ,  H01L51/56 ,  C09K11/06

Abstract: A method of manufacturing an organic light-emitting device by using a solution process is provided. The method entails forming a first organic layer between a first electrode and a second electrode, and forming a second organic layer between the first organic layer and the second electrode. The forming of the first organic layer comprises performing a solution process using a composition comprising a first compound, a second compound, and a solvent. The forming of the second organic layer comprises depositing a third compound on the first organic layer. An absolute value of a difference between a relative polarity of the first compound and a relative polarity of the solvent is about 0.03 or less.

公开(公告)号：US20250063885A1

公开(公告)日：2025-02-20

申请号：US18750963

申请日：2024-06-21

Applicant: Samsung Display Co., LTD.

Inventor： YUNKU JUNG ,  SOOHO LEE ,  Jungho JO ,  Chang Yeol HAN ,  YUNHYUK KO ,  SEHUN KIM

IPC: H10K50/16 ,  C09D11/037 ,  C09K11/06 ,  H10K50/115 ,  H10K50/165 ,  H10K85/30

Abstract: A light emitting element of an embodiment includes a first electrode, a hole transport region on the first electrode, an emission layer on the hole transport region, an electron transport region on the emission layer, and a second electrode on the electron transport region, the electron transport region includes a nanoparticle including a nanoparticle core and a ligand, the nanoparticle core includes a core compound represented by Formula 1, and the ligand is bonded to the surface of the nanoparticle core and represented by Formula 2 or Formula 3.

公开(公告)号：US20220169878A1

公开(公告)日：2022-06-02

申请号：US17445916

申请日：2021-08-25

Applicant: Samsung Display Co., Ltd.

Inventor： JUNBO SIM ,  DUKKI KIM ,  SEHUN KIM ,  HYOJIN KO ,  JAEKOOK HA

IPC: C09D11/36

Abstract: An ink composition for forming an electron transport region in a light emitting element includes inorganic nanoparticles and a first solvent having a Hansen solubility parameter hydrogen bonding term (δH) value of 5 or less in order to increase dispersion stability of the inorganic nanoparticles, and thereby prevent or reduce nozzle clogging in the head of an inkjet printing device.

公开(公告)号：US20200321535A1

公开(公告)日：2020-10-08

申请号：US16721613

申请日：2019-12-19

Applicant: Samsung Display Co., Ltd. ,  Seoul National University R&DB Foundation

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.