公开(公告)号：US20230365861A1

公开(公告)日：2023-11-16

申请号：US18223709

申请日：2023-07-19

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Taekhoon Kim ,  Nayoun Won ,  Tae Gon Kim ,  Mi Hye Lim ,  Shin Ae Jun ,  Shang Hyeun Park

IPC: C09K11/88 ,  C09K11/02 ,  H10K50/115

CPC classification number: C09K11/883 ,  C09K11/02 ,  H10K50/115 ,  B82Y15/00

Abstract: A quantum dot-polymer composite including a polymer matrix; and core-shell quantum dots dispersed in the polymer matrix, wherein the core-shell quantum dots include a semiconductor nanocrystal core including indium, zinc, and phosphorus and a semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the shell including zinc, selenium, and sulfur. The core-shell quantum dots do not include cadmium, the core-shell quantum dots are configured to emit green light, the core-shell quantum dots have a mole ratio of phosphorus to indium of greater than or equal to about 0.75, and the core-shell quantum dots have a mole ratio of zinc to indium of greater than or equal to about 35, and a method of producing the core-shell quantum dots, and a display device including a light emitting element that includes the quantum dot-polymer composite.

公开(公告)号：US11740495B2

公开(公告)日：2023-08-29

申请号：US16697650

申请日：2019-11-27

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tae Gon Kim ,  Garam Park ,  Jooyeon Ahn ,  Shang Hyeun Park ,  Shin Ae Jun

IPC: G02F1/017 ,  B82Y20/00 ,  C09K11/88 ,  H01L33/06 ,  H01L33/28 ,  H01L33/30 ,  H01L33/34 ,  C09K11/02 ,  C09K11/08 ,  C09K11/62 ,  H10K50/115

CPC classification number: G02F1/01716 ,  B82Y20/00 ,  C09K11/02 ,  C09K11/025 ,  C09K11/0811 ,  C09K11/0883 ,  C09K11/62 ,  C09K11/883 ,  H01L33/06 ,  H01L33/28 ,  H01L33/30 ,  H01L33/34 ,  H10K50/115 ,  G02F1/01791

Abstract: A quantum dot including a core and a shell disposed on the core wherein one of the core and the shell includes a first semiconductor nanocrystal including zinc and sulfur and the other of the core and the shell includes a second semiconductor nanocrystal having a different composition from the first semiconductor nanocrystal, the first semiconductor nanocrystal further includes a metal and a halogen configured to act as a Lewis acid in a halide form, an amount of the metal is greater than or equal to about 10 mole percent (mol %) based on a total number of moles of sulfur, and an amount of the halogen is greater than or equal to about 10 mol % based on a total number of moles of sulfur, a method of producing the same, and a composite and an electronic device including the same.

公开(公告)号：US11711959B2

公开(公告)日：2023-07-25

申请号：US17474051

申请日：2021-09-14

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tae Gon Kim ,  Sung Hun Lee ,  Shin Ae Jun ,  Deukseok Chung

IPC: H10K59/38 ,  H10K50/844 ,  H10K102/00 ,  H10K50/00 ,  G02B3/00 ,  G02B5/20 ,  H10K50/85 ,  H10K50/858 ,  H10K59/00

CPC classification number: H10K59/38 ,  G02B3/00 ,  G02B5/201 ,  H10K50/844 ,  H10K50/85 ,  H10K50/858 ,  H10K50/00 ,  H10K59/00 ,  H10K2102/331

Abstract: A display device includes an organic emission layer in which a first pixel area, a second pixel area and a third pixel area are defined, a color filter layer disposed on the organic emission layer and including first to third color filters overlapping the first to third pixel areas, respectively, where the first to third color filters emit first light to third light, respectively, a first optical filter layer disposed on the color filter layer and which transmits at least one of the first light and the second light and reflects or absorbs the third light, and a light-focusing layer disposed between the color filter layer and the organic emission layer and including first to third light-focusing parts overlapping the first to third pixel areas, respectively, where at least one of the first to third color filters includes quantum dots.

公开(公告)号：US11697764B2

公开(公告)日：2023-07-11

申请号：US17199616

申请日：2021-03-12

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tae Gon Kim ,  Jongmin Lee ,  Jooyeon Ahn ,  Hyeyeon Yang ,  Shin Ae Jun

IPC: C09K11/70 ,  C09K11/02 ,  C09K11/62 ,  C22C30/06 ,  G02F1/017 ,  B82Y30/00 ,  H10K59/38 ,  B82Y20/00 ,  B82Y40/00 ,  G02F1/13357

CPC classification number: C09K11/703 ,  B82Y30/00 ,  C09K11/025 ,  C09K11/623 ,  C22C30/06 ,  G02F1/01791 ,  H10K59/38 ,  B82Y20/00 ,  B82Y40/00 ,  G02F1/133617

Abstract: A quantum dot, a production method thereof, and a quantum dot composite and a device including the same are disclosed, wherein the quantum dot includes an alloy semiconductor nanocrystal including indium (In), gallium, zinc (Zn), phosphorus (P), and sulfur (S), and in the quantum dot, a mole ratio of gallium with respect to indium (Ga:In) is greater than or equal to about 0.2:1, a mole ratio of phosphorus with respect to indium (P:In) is greater than or equal to about 0.95:1, the quantum dot does not include cadmium, and in an UV-Vis absorption spectrum of the quantum dot(s), a first absorption peak is present in a range of less than or equal to about 520 nm.

公开(公告)号：US11581501B2

公开(公告)日：2023-02-14

申请号：US16441660

申请日：2019-06-14

Applicant: SAMSUNG ELECTRONICS CO., LTD. ,  THE TRUSTEES OF THE UNIVERSITY OF PENNSYLVANIA

Inventor： Tae Gon Kim ,  Tianshuo Zhao ,  Nuri Oh ,  Cherie Kagan ,  Eun Joo Jang ,  Christopher Murray

IPC: H01L51/42 ,  B82Y30/00 ,  H01L31/0232

Abstract: An electronic device and a production method thereof, wherein the electronic device includes: a semiconductor layer comprising a plurality of quantum dots; and a first electrode and a second electrode spaced apart from each other; wherein the plurality of quantum dots do not comprise cadmium, lead, or mercury; wherein the plurality of quantum dots comprise indium and optionally gallium; a Group VA element, wherein the Group VA element comprises antimony, arsenic, or a combination thereof, and a molar ratio of the Group VA element with respect to the Group IIIA metal (e.g., indium) is less than or equal to about 1.2:1, and wherein the semiconductor layer may be disposed between the first electrode and the second electrode.

公开(公告)号：US11236270B2

公开(公告)日：2022-02-01

申请号：US16507406

申请日：2019-07-10

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Garam Park ,  Tae Gon Kim ,  Jooyeon Ahn ,  Ji-Yeong Kim ,  Nayoun Won ,  Shin Ae Jun

IPC: C09K11/88 ,  C09K11/02 ,  G02F1/13357 ,  H01L27/32

Abstract: Disclosed are a quantum dot and a quantum dot-polymer composite and a device including the same, wherein the quantum dot includes 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 dot does not include cadmium, wherein in the quantum dot, a mole ratio of sulfur with respect to selenium is less than or equal to about 2.5:1.

公开(公告)号：US20210343807A1

公开(公告)日：2021-11-04

申请号：US17372976

申请日：2021-07-12

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

Inventor： Deukseok Chung ,  Sung Hun Lee ,  Tae Gon Kim ,  Shin Ae Jun

IPC: H01L27/32 ,  H01L51/50 ,  H01L51/52

Abstract: A display device includes a first electrode, a pixel define layer disposed on the first electrode, the pixel define layer including an opening, an organic emission layer disposed on the pixel define layer, the organic emission layer in electrical communication with the first electrode through the opening, a second electrode disposed on the organic emission layer, a light recycle layer disposed on the second electrode, and a color filter layer disposed on the light recycle layer, the color filter layer including a quantum dot, wherein a width of the organic emission layer is longer than a width of the color filter layer.

公开(公告)号：US11069751B2

公开(公告)日：2021-07-20

申请号：US16668699

申请日：2019-10-30

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tae Gon Kim ,  Sung Hun Lee ,  Ji Whan Kim ,  Shin Ae Jun ,  Deukseok Chung

IPC: H01L21/00 ,  H01L33/00 ,  H01L27/32 ,  H01L51/52 ,  H01L51/56 ,  H01L31/0352 ,  H01L51/50

Abstract: A display device including a light source including a first electrode having a light reflectance for a first light of greater than or equal to about 60%; an organic light emitting layer disposed on the first electrode and emitting the first light; and a second electrode disposed on the organic light emitting layer and having a light transmittance in a visible wavelength region of greater than or equal to about 70%, wherein the light source has a first absorption peak in a wavelength region of about 650 nanometers (nm) to about 750 nm or a second absorption peak in a wavelength region of about 550 nm to about 600 nm at a viewing angle of about 55 degrees to about 85 degrees, and a color filter layer disposed above the light source and including a quantum dot configured to convert the first light into a second light.

公开(公告)号：US11046885B2

公开(公告)日：2021-06-29

申请号：US16223186

申请日：2018-12-18

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Tae Gon Kim ,  Deukseok Chung ,  Jooyeon Ahn ,  Shin Ae Jun

IPC: C09K11/02 ,  H05B33/22 ,  C08G77/04 ,  C09D183/08 ,  C08G77/28 ,  C09K11/70 ,  C08G77/388 ,  C09K11/56 ,  C09D183/10 ,  C08G77/38 ,  C09K11/08 ,  G02F1/1335 ,  G02F1/13357 ,  H01L27/32 ,  H01L51/52 ,  B82Y30/00 ,  B82Y40/00

Abstract: A layered structure including a photoluminescent layer including a quantum dot polymer composite; a light absorption layer disposed on the photoluminescent layer, the light absorption layer including an absorptive color-filter material; and a silicon containing layer disposed between the photoluminescent layer and the light absorption layer, wherein the quantum dot polymer composite includes a first polymer matrix and a plurality of quantum dots dispersed in the first polymer matrix, and the plurality of quantum dots absorb excitation light and emits light in a longer wavelength than the wavelength of the excited light; and the absorptive color-filter material is dispersed in a second polymer matrix, and the absorptive color-filter material absorbs the excitation light that passes through the photoluminescent layer and transmits the light emitted from the plurality of quantum dots and an electronic device including the same.

公开(公告)号：US20210139776A1

公开(公告)日：2021-05-13

申请号：US17092368

申请日：2020-11-09

Applicant: SAMSUNG ELECTRONICS CO., LTD.

Inventor： Taekhoon Kim ,  Nayoun Won ,  Tae Gon Kim ,  Mi Hye Lim ,  Shin Ae Jun ,  Shang Hyeun Park

IPC: C09K11/88 ,  C09K11/02 ,  H01L51/50

Abstract: A quantum dot-polymer composite including a polymer matrix; and core-shell quantum dots dispersed in the polymer matrix, wherein the core-shell quantum dots include a semiconductor nanocrystal core including indium, zinc, and phosphorus and a semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the shell including zinc, selenium, and sulfur. The core-shell quantum dots do not include cadmium, the core-shell quantum dots are configured to emit green light, the core-shell quantum dots have a mole ratio of phosphorus to indium of greater than or equal to about 0.75, and the core-shell quantum dots have a mole ratio of zinc to indium of greater than or equal to about 35, and a method of producing the core-shell quantum dots, and a display device including a light emitting element that includes the quantum dot-polymer composite.