公开(公告)号：US10678130B2

公开(公告)日：2020-06-09

申请号：US16442984

申请日：2019-06-17

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: G02F1/1335 ,  G02B5/20 ,  G03F7/00 ,  G03F7/16 ,  G03F7/20 ,  G03F7/32 ,  G03F7/40 ,  G03F7/033 ,  G03F7/031 ,  G03F7/004 ,  G03F7/028 ,  G03F7/027 ,  G03F7/105 ,  G02B5/22

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：US10126598B2

公开(公告)日：2018-11-13

申请号：US15872595

申请日：2018-01-16

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yong Seok Han ,  Nayoun Won ,  Hyun A Kang ,  Ha Il Kwon ,  Shang Hyeun Park ,  Eun Joo Jang ,  Shin Ae Jun ,  Deukseok Chung ,  Tae Won Jeong

IPC: G02B5/20 ,  G02F1/1335 ,  G03F7/00

Abstract: A color filter including a first region configured to emit a first light, a second region configured to emit a second light having a longer wavelength than a wavelength of the first light, a third region configured to emit a third light having a longer wavelength than the wavelength of the second light, a first layer including two or more quantum dots, and a second layer formed on at least one surface of the first layer, wherein the first layer and the second layer are disposed in at least the second region and the third region.

公开(公告)号：US11981851B2

公开(公告)日：2024-05-14

申请号：US18054687

申请日：2022-11-11

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sung Woo Kim ,  Jin A Kim ,  Tae Hyung Kim ,  Kun Su Park ,  Yuho Won ,  Jeong Hee Lee ,  Eun Joo Jang ,  Hyo Sook Jang ,  Yong Seok Han ,  Heejae Chung

IPC: C09K11/88 ,  B82Y20/00 ,  B82Y30/00 ,  B82Y40/00 ,  H10K50/115

CPC classification number: C09K11/883 ,  H10K50/115 ,  B82Y20/00 ,  B82Y30/00 ,  B82Y40/00 ,  C01P2002/01 ,  C01P2002/74 ,  C01P2004/30 ,  C01P2004/64 ,  C01P2004/80

Abstract: A quantum dot including a core comprising a first semiconductor nanocrystal including a zinc chalcogenide and a semiconductor nanocrystal shell disposed on the surface of the core and comprising zinc, selenium, and sulfur. The quantum dot does not comprise cadmium, emits blue light, and may exhibit a digital diffraction pattern obtained by a Fast Fourier Transform of a transmission electron microscopic image including a (100) facet of a zinc blende structure. In an X-ray diffraction spectrum of the quantum dot, a ratio of a defect peak area with respect to a peak area of a zinc blende crystal structure is less than about 0.8:1. A method of producing the quantum dot, and an electroluminescent device including the quantum dot are also disclosed.

公开(公告)号：US11835856B2

公开(公告)日：2023-12-05

申请号：US17204110

申请日：2021-03-17

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

Inventor： Shin Ae Jun ,  Shang Hyeun Park ,  Hojeong Paek ,  Jonggi Kim ,  Hyeyeon Yang ,  Eun Joo Jang ,  Yong Seok Han

IPC: G03F7/00 ,  G03F7/033 ,  G02B5/20 ,  G02B5/22 ,  C09K11/02 ,  C09K11/08

CPC classification number: G03F7/0007 ,  C09K11/02 ,  C09K11/08 ,  G02B5/207 ,  G02B5/223 ,  G03F7/033

Abstract: A photosensitive composition including a quantum dot dispersion, a photopolymerizable monomer having a carbon-carbon double bond, and a photoinitiator, wherein the quantum dot dispersion includes an acid group-containing polymer and a plurality of quantum dots dispersed in the acid group-containing polymer, and wherein the acid group-containing polymer includes a copolymer of a monomer combination including a first monomer having a carboxylic acid group or a phosphonic acid group and a carbon-carbon double bond and a second monomer having a carbon-carbon double bond and a hydrophobic group and not having a carboxylic acid group and a phosphonic acid group.

公开(公告)号：US11566176B2

公开(公告)日：2023-01-31

申请号：US16851495

申请日：2020-04-17

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Jeong Hee Lee ,  Hyo Sook Jang ,  Sung Woo Kim ,  Jin A Kim ,  Tae Hyung Kim ,  Yuho Won ,  Eun Joo Jang ,  Yong Seok Han

IPC: C09K11/88 ,  H01L33/00 ,  H01L33/28 ,  H01L33/06

Abstract: A semiconductor nanocrystal particle including a core including a first semiconductor nanocrystal including zinc (Zn) and sulfur (S), selenium (Se), tellurium (Te), or a combination thereof; and a shell including a second semiconductor nanocrystal disposed on at least a portion of the core, wherein the core includes a dopant of a Group 1A element, a Group 2A element, or a combination thereof, and the semiconductor nanocrystal particle exhibits a maximum peak emission in a wavelength region of about 440 nanometers (nm) to about 470 nm.

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.

公开(公告)号：US11935984B2

公开(公告)日：2024-03-19

申请号：US18065910

申请日：2022-12-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yong Seok Han ,  Sung Woo Kim ,  Jin A Kim ,  Tae Hyung Kim ,  Kun Su Park ,  Yuho Won ,  Jeong Hee Lee ,  Eun Joo Jang ,  Hyo Sook Jang

IPC: H01L33/06 ,  C01B19/04 ,  C09K11/88 ,  H01L33/20 ,  H01L33/26

CPC classification number: H01L33/06 ,  C01B19/04 ,  C09K11/88 ,  H01L33/20 ,  H01L33/26

Abstract: A quantum dot including a core that includes a first semiconductor nanocrystal including zinc and selenium, and optionally sulfur and/or tellurium, and a shell that includes a second semiconductor nanocrystal including zinc, and at least one of sulfur or selenium is disclosed. The quantum dot has an average particle diameter of greater than or equal to about 13 nm, an emission peak wavelength in a range of about 440 nm to about 470 nm, and a full width at half maximum (FWHM) of an emission wavelength of less than about 25 nm. A method for preparing the quantum dot, a quantum dot-polymer composite including the quantum dot, and an electronic device including the quantum dot is also disclosed.

公开(公告)号：US11505740B2

公开(公告)日：2022-11-22

申请号：US17490552

申请日：2021-09-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Yuho Won ,  Nayoun Won ,  Sungwoo Hwang ,  Eun Joo Jang ,  Soo Kyung Kwon ,  Yong Wook Kim ,  Jihyun Min ,  Garam Park ,  Shang Hyeun Park ,  Hyo Sook Jang ,  Shin Ae Jun ,  Yong Seok Han

IPC: H01L51/50 ,  C09K11/08 ,  C08L57/10 ,  G02F1/13357 ,  H01L27/32 ,  C09K11/02 ,  C09K11/56 ,  C09K11/70 ,  C09K11/88 ,  H05B33/14 ,  B82Y40/00 ,  B82Y20/00 ,  G02F1/1335

Abstract: A cadmium free quantum dot not including cadmium and including: a semiconductor nanocrystal core comprising indium and phosphorous, a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core and comprising zinc and selenium, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell and comprising zinc and sulfur, a composition and composite including the same, and an electronic device.

公开(公告)号：US11424425B2

公开(公告)日：2022-08-23

申请号：US17062162

申请日：2020-10-02

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Sujin Park ,  Yuho Won ,  Eun Joo Jang ,  Dae Young Chung ,  Sung Woo Kim ,  Jin A Kim ,  Yong Seok Han

IPC: H01L51/50 ,  H01L51/00

Abstract: An electroluminescent device includes a first electrode and a second electrode facing each other; a hole transport layer between the first electrode and the second electrode; a light emitting layer including a first light emitting layer disposed between the hole transport layer and the second electrode and including a first quantum dot and a second light emitting layer between the first light emitting layer and the second electrode and including a second quantum dot; and an electron transport layer between the light emitting layer and the second electrode. Each of the first and second light emitting layers emits first light, each of the first and second quantum dots has a core-shell structure including one or more shells, and the first and second quantum dots have different numbers of shells from each other or have different total thicknesses of the one or more shells from each other.