公开(公告)号：US11011673B2

公开(公告)日：2021-05-18

申请号：US16442926

申请日：2019-06-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Kun Su Park ,  Tae Ho Kim ,  Sung Woo Kim ,  Chan Su Kim ,  Tae Hyung Kim ,  Eun Joo Jang

IPC: H01L33/06 ,  H01L33/00 ,  H01L33/28

Abstract: A quantum dot device including a first electrode and a second electrode facing each other, a quantum dot layer disposed between the first electrode and the second electrode and an electron auxiliary layer disposed between the quantum dot layer and the second electrode, wherein the electron auxiliary layer includes an electron-transporting material represented by Chemical Formula 1 and an electron-controlling material capable of decreasing electron mobility of the electron auxiliary layer, and a display device. Zn1-xMxO  Chemical Formula 1 In Chemical Formula 1, M and x are the same as described in the detailed description.

公开(公告)号：US11005060B2

公开(公告)日：2021-05-11

申请号：US16356148

申请日：2019-03-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Dae Young Chung ,  Moon Gyu Han ,  Oul Cho ,  Tae Hyung Kim ,  Sujin Park ,  Hongkyu Seo ,  Eun Joo Jang

IPC: H01L51/50 ,  H01L51/00 ,  H01L51/56 ,  H01L33/06 ,  H01L33/08 ,  H01L27/32

Abstract: An electroluminescent device including a first electrode, a hole transport layer disposed on the first electrode, a first emission layer disposed on the hole transport layer, the first emission layer including a first light emitting particle on which a first ligand having a hole transporting property is attached, a second emission layer disposed on the first emission layer, the second emission layer including a second light emitting particle on which a second ligand having an electron transporting property is attached, an electron transport layer disposed on the second emission layer, and a second electrode disposed on the electron transport layer, wherein a solubility of the first ligand in a solvent is different than a solubility of the second ligand in the solvent and a display device including the same.

公开(公告)号：US10954441B2

公开(公告)日：2021-03-23

申请号：US16298276

申请日：2019-03-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tae Hyung Kim ,  Jeong Hee Lee ,  Sung Woo Kim ,  Jin A Kim ,  Yuho Won ,  Eun Joo Jang

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

Abstract: A quantum dot includes a core including a first semiconductor nanocrystal material including zinc, tellurium, and selenium; and a semiconductor nanocrystal shell disposed on (e.g., directly on) the core and including zinc, selenium, and sulfur, wherein the quantum dot does not include cadmium, wherein a size of the quantum dot is greater than or equal to about 10 nanometers (nm) and the quantum dot includes at least four protrusions. A production method thereof and an electronic device including the same are also disclosed.

公开(公告)号：US10948770B2

公开(公告)日：2021-03-16

申请号：US15238127

申请日：2016-08-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tae Hyung Kim ,  Eun Joo Jang ,  Hyun A Kang ,  Yongwook Kim ,  Jihyun Min ,  Jeong Hee Lee ,  Shin Ae Jun ,  Oul Cho

IPC: G02F1/1335 ,  G02F1/13357 ,  F21V8/00 ,  H01L33/50 ,  B82Y20/00 ,  B82Y30/00

Abstract: A light source includes a light emitting element and a light conversion layer configured to convert light emitted from the light emitting element into white light; wherein the light conversion layer includes a matrix resin and a quantum dot, wherein the white light includes a red light component, a green light component, and a blue light component each having a color purity configured to display a color gamut having a concordance rate of greater than or equal to about 99.0% with an Adobe RGB color gamut of a display device, and wherein the green light component has a peak wavelength of about 525 nanometers to about 528 nanometers and a full width at half maximum of less than or equal to about 40 nanometers, and a red light component having a peak wavelength of about 625 nanometers to about 645 nanometers.

公开(公告)号：US10808169B2

公开(公告)日：2020-10-20

申请号：US15644984

申请日：2017-07-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jeong Hee Lee ,  Hyun A Kang ,  Eun Joo Jang ,  Sang Eui Lee ,  Shin Ae Jun ,  Oul Cho ,  Tae Gon Kim ,  Tae Hyung Kim

IPC: C09K11/02 ,  G02F1/1335 ,  C09K11/59 ,  C01B17/20 ,  C08L33/04 ,  G02F1/361 ,  B24B1/00

Abstract: A method of grinding a semiconductor nanocrystal-polymer composite, the method including obtaining a semiconductor nanocrystal-polymer composite including a semiconductor nanocrystal and a first polymer, contacting the semiconductor nanocrystal-polymer composite with an inert organic solvent; and grinding the semiconductor nanocrystal-polymer composite in the presence of the inert organic solvent to grind the semiconductor nanocrystal-polymer composite.

公开(公告)号：US10647917B2

公开(公告)日：2020-05-12

申请号：US16170493

申请日：2018-10-25

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jeong Hee Lee ,  Hyun A Kang ,  Sung Woo Kim ,  Jin A Kim ,  Tae Hyung Kim ,  Yuho Won ,  Eun Joo Jang

IPC: C09K11/02 ,  C09K11/88 ,  C01B19/00 ,  B82Y20/00 ,  B82Y40/00 ,  H01L51/50 ,  B82Y30/00

Abstract: A method of producing a quantum dot comprising zinc selenide, the method comprising: providing an organic ligand mixture comprising a carboxylic acid compound, a primary amine compound, a secondary amide compound represented by Chemical Formula 1, and a first organic solvent: RCONHR  Chemical Formula 1 wherein each R is as defined herein; heating the organic ligand mixture in an inert atmosphere at a first temperature to obtain a heated organic ligand mixture; adding a zinc precursor, a selenium precursor, and optionally a tellurium precursor to the heated organic ligand mixture to obtain a reaction mixture, wherein the zinc precursor does not comprise oxygen; and heating the reaction mixture at a first reaction temperature to synthesize a first semiconductor nanocrystal particle.

公开(公告)号：US10472562B2

公开(公告)日：2019-11-12

申请号：US15378791

申请日：2016-12-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jeong Hee Lee ,  Hyun A Kang ,  Tae Hyung Kim ,  Eun Joo Jang ,  Nayoun Won ,  Jiho You

IPC: C09K11/02 ,  B05D3/00 ,  C08K3/16 ,  C08K3/32 ,  C08K9/04 ,  C08L23/08 ,  C09K11/70 ,  C09K11/88 ,  H01L33/50 ,  H01L33/56 ,  B82Y20/00 ,  B82Y40/00

Abstract: A quantum dot-polymer micronized composite includes a first polymer matrix; a plurality of quantum dots dispersed in the first polymer matrix; and at least one of an additive selected from a clay particle embedded in the first polymer matrix and a metal halide dispersed in the first polymer matrix, wherein the quantum dot-polymer micronized composite has an average particle size of less than or equal to about 100 micrometers, a production method thereof, and an article and an electronic device including the micronized composite are provided.

公开(公告)号：US10371969B2

公开(公告)日：2019-08-06

申请号：US15671369

申请日：2017-08-08

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Eun Joo Jang ,  Chil Hee Chung ,  Tae Hyung Kim ,  Jihyun Min ,  Hyo Sook Jang ,  Dae Young Chung

IPC: H01L51/50 ,  G02F1/017 ,  G02F2/02 ,  C09K11/00 ,  C09K11/70 ,  H05B33/14 ,  B82Y20/00 ,  G02F1/355

Abstract: An electronic device includes: an anode and a cathode facing each other; a quantum dot emission layer disposed between the anode and the cathode and including a plurality of quantum dots; and a light emitting source, wherein the quantum dot emission layer is configured to receive electrical energy from the anode and the cathode and to emit light having a first wavelength, wherein the quantum dot emission layer and the light emitting source are configured so that the light emitting source provides the quantum emission layer with light having a second wavelength, and the plurality of quantum dots are excited by the light having the second wavelength and emit light having a third wavelength, wherein the anode, the cathode, or a combination thereof is a light transmitting electrode, and the light of the first wavelength and the light of the third wavelength are emitted through the light transmitting electrode.

公开(公告)号：US10324373B2

公开(公告)日：2019-06-18

申请号：US15924814

申请日：2018-03-19

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  SAMSUNG DISPLAY CO., LTD. ,  SAMSUNG SDI CO., LTD.

Inventor： Hyeyeon Yang ,  Tae Hyung Kim ,  Shang Hyeun Park ,  Shin Ae Jun ,  Yong Seok Han ,  Eun Joo Jang ,  Deukseok Chung

IPC: G03F7/028 ,  G03F7/00 ,  G03F7/16 ,  G03F7/20 ,  G03F7/32 ,  G03F7/40 ,  G03F7/033 ,  G03F7/031 ,  G03F7/004 ,  G03F7/027 ,  G03F7/105

Abstract: A photosensitive composition and a quantum dot-polymer composite pattern formed from the photosensitive composition are disclosed, and the photosensitive composition includes: a plurality of quantum dots; a color filter material including an absorption dye, an absorption pigment, or a combination thereof; a polymer binder; a photopolymerizable monomer having a carbon-carbon double bond; a photoinitiator; and a solvent, wherein in a normalized photoluminescence spectrum of the quantum dot and a normalized ultraviolet-visible absorption spectrum of the color filter material, a photoluminescence peak wavelength (PL peak wavelength) of the quantum dot and a wavelength of maximum absorbance of the color filter material do not overlap with each other, and the color filter material is included in an amount of less than or equal to 1 part by weight per 10 parts by weight of the plurality of quantum dots.

公开(公告)号：US09921472B2

公开(公告)日：2018-03-20

申请号：US15295332

申请日：2016-10-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Hyeyeon Yang ,  Tae Hyung Kim ,  Shang Hyeun Park ,  Shin Ae Jun ,  Yong Seok Han ,  Eun Joo Jang ,  Deukseok Chung

IPC: G03F7/028 ,  G03F7/00 ,  G03F7/16 ,  G03F7/20 ,  G03F7/32 ,  G03F7/40 ,  G03F7/033 ,  G03F7/031 ,  G03F7/004

CPC classification number: G03F7/0007 ,  G03F7/0045 ,  G03F7/0047 ,  G03F7/027 ,  G03F7/028 ,  G03F7/031 ,  G03F7/033 ,  G03F7/105 ,  G03F7/162 ,  G03F7/168 ,  G03F7/2002 ,  G03F7/322 ,  G03F7/40

Abstract: A photosensitive composition and a quantum dot-polymer composite pattern formed from the photosensitive composition are disclosed, and the photosensitive composition includes: a plurality of quantum dots; a color filter material including an absorption dye, an absorption pigment, or a combination thereof; a polymer binder; a photopolymerizable monomer having a carbon-carbon double bond; a photoinitiator; and a solvent, wherein in a normalized photoluminescence spectrum of the quantum dot and a normalized ultraviolet-visible absorption spectrum of the color filter material, a photoluminescence peak wavelength (PL peak wavelength) of the quantum dot and a wavelength of maximum absorbance of the color filter material do not overlap with each other, and the color filter material is included in an amount of less than or equal to 1 part by weight per 10 parts by weight of the plurality of quantum dots.