公开(公告)号：US11939422B2

公开(公告)日：2024-03-26

申请号：US17544028

申请日：2021-12-07

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Masashi Tsuji ,  Fumiaki Kato ,  Naotoshi Suganuma ,  Takahiro Fujiyama ,  Yusaku Konishi ,  Dae Young Chung ,  Ha Il Kwon ,  Soonmin Cha ,  Tae Ho Kim

IPC: C08G61/12 ,  B82Y20/00 ,  H10K50/11 ,  H10K50/115 ,  H10K50/15 ,  H10K71/00 ,  H10K71/12 ,  H10K85/10 ,  H10K101/30 ,  H10K101/40 ,  H10K102/00

CPC classification number: C08G61/124 ,  H10K71/12 ,  H10K85/111 ,  H10K85/151 ,  B82Y20/00 ,  C08G2261/12 ,  C08G2261/1434 ,  C08G2261/148 ,  C08G2261/149 ,  C08G2261/3241 ,  C08G2261/512 ,  C08G2261/5222 ,  H10K50/11 ,  H10K50/115 ,  H10K50/15 ,  H10K71/00 ,  H10K2101/30 ,  H10K2101/40 ,  H10K2102/00

Abstract: A copolymer including a structural unit represented by Chemical Formula 1




wherein the copolymer is capable of improving luminous efficiency and durability, particularly, an improvement in luminescence life-span, of an electroluminescence device, particularly a quantum dot electroluminescence device.

公开(公告)号：US11613694B2

公开(公告)日：2023-03-28

申请号：US17346793

申请日：2021-06-14

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  Samsung Display Co., Ltd ,  SAMSUNG SDI CO., LTD.

Inventor： Tae Gon Kim ,  Ha Il Kwon ,  Shin Ae Jun

IPC: C09K11/02 ,  G03F7/00 ,  C08K3/00 ,  C09D5/22 ,  C09K11/88 ,  G02B5/20 ,  G02F1/1335 ,  G03F7/004 ,  G03F7/031 ,  G03F7/16 ,  G03F7/20 ,  G03F7/32 ,  G03F7/40 ,  H01L33/50 ,  H01L31/054 ,  B82Y20/00 ,  B82Y40/00 ,  H01L31/055

Abstract: A quantum dot-polymer composite film includes: a plurality of quantum dots, wherein a quantum dot of the plurality of quantum dots includes an organic ligand on a surface of a the quantum dot; a cured product of a photopolymerizable monomer including a carbon-carbon unsaturated bond; and a residue including a residue of a high-boiling point solvent, a residue of a polyvalent metal compound, or a combination thereof.

公开(公告)号：US11139441B2

公开(公告)日：2021-10-05

申请号：US16297923

申请日：2019-03-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jaejun Chang ,  Sang Jin Lee ,  Eun Joo Jang ,  Ha Il Kwon ,  Dae Young Chung

IPC: H01L51/50 ,  H01L51/00 ,  H01L51/56

Abstract: A quantum dot device including an anode and a cathode facing each other, a quantum dot layer disposed between the anode and the cathode, and an electron transport layer disposed between the cathode and the quantum dot layer, wherein the quantum dot layer includes an emissive quantum dot emitting light in at least one part of a wavelength region in a visible region and a non-emissive quantum dot configured to not emit light in a visible region, and a difference between a lowest unoccupied molecular orbital (LUMO) energy level of the non-emissive quantum dot and a LUMO energy level of the electron transport layer is greater than or equal to about 0.5 electronvolts (eV).

公开(公告)号：US10851298B2

公开(公告)日：2020-12-01

申请号：US16554839

申请日：2019-08-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yuho Won ,  Ha Il Kwon ,  Eun Joo Jang ,  Jaejun Chang ,  Dae Young Chung

IPC: C09K11/88 ,  C09K11/08 ,  H01L51/50 ,  B82Y20/00 ,  H01L51/00 ,  B82Y40/00

Abstract: An electroluminescent device includes a first electrode and a second electrode facing each other, and an emissive layer disposed between the first electrode and the second electrode and including the quantum dots. The quantum dots include a semiconductor nanocrystal core including indium (In) and phosphorous (P), a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the first semiconductor nanocrystal shell including zinc and selenium, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell, the second semiconductor nanocrystal shell including zinc and sulfur, wherein the quantum dots do not include cadmium. The electroluminescent device has an external quantum efficiency of greater than or equal to about 9% and a maximum brightness of greater than or equal to about 10,000 candelas per square meter (cd/m2).

公开(公告)号：US12225747B2

公开(公告)日：2025-02-11

申请号：US18512352

申请日：2023-11-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Won Sik Yoon ,  Ju Hyun Kim ,  Ha Il Kwon ,  Kwang Hee Kim ,  Taehyung Kim ,  Su Jin Park ,  Dae Young Chung

IPC: H01L51/50 ,  H10K50/115 ,  H10K50/15 ,  H10K50/16

Abstract: A quantum dot device including an anode and a cathode, a light emitting layer disposed between the anode and the cathode, the light emitting layer comprising quantum dots, a first hole auxiliary layer disposed on the anode, the first hole auxiliary layer including poly(3,4-ethylenedioxythiophene)-polystyrenesulfonate or a derivative thereof (PEDOT:PSS), a second hole auxiliary layer disposed on the first hole auxiliary layer and including a hole transport material different from the PEDOT:PSS, wherein the light emitting layer is disposed on the second hole auxiliary layer, wherein the first hole auxiliary layer has a first surface facing the anode and a second surface facing the second hole auxiliary layer, and the second surface includes a surface modification region including a surface modification material having a carboxylic acid group, a phosphonic acid group, a sulfonic acid group, or a salt thereof. An electronic device that includes the quantum dot device.

公开(公告)号：US11958998B2

公开(公告)日：2024-04-16

申请号：US17308333

申请日：2021-05-05

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  Samsung Display Co., Ltd. ,  SAMSUNG SDI CO., LTD.

Inventor： Ha Il Kwon ,  Tae Gon Kim ,  Shang Hyeun Park ,  Eun Joo Jang ,  Shin Ae Jun ,  Garam Park

IPC: C09K11/02 ,  C08K3/16 ,  C08K3/30 ,  C08K5/09 ,  C08K5/37 ,  C08K9/04 ,  C09K11/08 ,  C09K11/56 ,  C09K11/62 ,  C09K11/88 ,  G02F1/13357 ,  H01L33/50 ,  G02F1/1335

CPC classification number: C09K11/02 ,  C08K3/16 ,  C08K3/30 ,  C08K9/04 ,  C09K11/562 ,  G02F1/1336 ,  C08K2003/168 ,  C08K2003/3036 ,  G02F1/133614

Abstract: A composition including a plurality of quantum dots; a binder polymer; a thiol compound having at least two thiol groups; a polyvalent metal compound; a polymerizable monomer having a carbon-carbon double bond; a photoinitiator; and a solvent.

公开(公告)号：US11060026B2

公开(公告)日：2021-07-13

申请号：US17083470

申请日：2020-10-29

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yuho Won ,  Ha Il Kwon ,  Eun Joo Jang ,  Jaejun Chang ,  Dae Young Chung

IPC: H01L51/50 ,  C09K11/88 ,  C09K11/08 ,  B82Y20/00 ,  H01L51/00 ,  B82Y40/00

Abstract: An electroluminescent device includes a first electrode and a second electrode facing each other, and an emissive layer disposed between the first electrode and the second electrode and including the quantum dots. The quantum dots include a semiconductor nanocrystal core including indium (In) and phosphorous (P), a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the first semiconductor nanocrystal shell including zinc and selenium, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell, the second semiconductor nanocrystal shell including zinc and sulfur, wherein the quantum dots do not include cadmium. The electroluminescent device has an external quantum efficiency of greater than or equal to about 9% and a maximum brightness of greater than or equal to about 10,000 candelas per square meter (cd/m2).

公开(公告)号：US11021650B2

公开(公告)日：2021-06-01

申请号：US15672608

申请日：2017-08-09

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  Samsung Display Co., Ltd. ,  SAMSUNG SDI CO., LTD.

Inventor： Ha Il Kwon ,  Tae Gon Kim ,  Shang Hyeun Park ,  Eun Joo Jang ,  Shin Ae Jun ,  Garam Park

IPC: C09K11/02 ,  C09K11/56 ,  C08K3/30 ,  C08K9/04 ,  C08K3/16 ,  G02F1/13357 ,  G02F1/1335

Abstract: A composition including a plurality of quantum dots; a binder polymer; a thiol compound having at least two thiol groups; a polyvalent metal compound; a polymerizable monomer having a carbon-carbon double bond; a photoinitiator; and a solvent.

公开(公告)号：US10988685B2

公开(公告)日：2021-04-27

申请号：US15820781

申请日：2017-11-22

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  SAMSUNG SDI CO., LTD. ,  Samsung Display Co., Ltd.

Inventor： Jooyeon Ahn ,  Ha Il Kwon ,  Shang Hyeun Park ,  Nayoun Won ,  Eun Joo Jang ,  Shin Ae Jun

IPC: C09K11/02 ,  C09K11/06 ,  C09K11/70 ,  C09K11/88 ,  F21V8/00 ,  H01L51/00 ,  H01L51/50 ,  H05B33/14 ,  B82Y20/00 ,  B82Y40/00

Abstract: A quantum dot including a first ligand and a second ligand on a surface of the quantum dot, a composition or composite including the same, and a device including the same. The first ligand includes a compound represented by Chemical Formula 1 and the second ligand includes a compound represented by Chemical Formula 2: MAn  Chemical Formula 1 wherein M, n, and A are the same as defined in the specification; and wherein, R1, L1, Y1, R, k1, and k2 are the same as defined in the specification.

公开(公告)号：US10689511B2

公开(公告)日：2020-06-23

申请号：US15862197

申请日：2018-01-04

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  Samsung Display Co., Ltd. ,  SAMSUNG SDI CO., LTD.

Inventor： Jooyeon Ahn ,  Nayoun Won ,  Ha Il Kwon ,  Eun Joo Jang ,  Shin Ae Jun

IPC: C08L57/10 ,  C08L53/00 ,  C08K5/5419 ,  C08K5/09 ,  C09K11/08 ,  C08K5/205 ,  C08K3/013 ,  C08F222/10 ,  H01L33/50 ,  C08F220/06 ,  C08L81/02 ,  C08G75/045 ,  C08K5/098 ,  C08K5/39 ,  C08K5/5435

Abstract: A composition including: a plurality of quantum dots; a monomer combination including a first monomer having at least two thiol groups at terminal ends of the first monomer and a second monomer having at least two carbon-carbon double bonds at terminal ends of the second monomer; and an additive, a composite prepared therefrom, and an electronic device including same are disclosed. The additive includes a cyclosiloxane compound having a reactive moiety, a (meth)acrylate salt of a polyvalent metal, and a dithiocarbamate salt of a polyvalent metal, or a combination thereof, and wherein the reactive moiety includes a carbon-carbon double bond, a thiol group, or a combination thereof.