Patents by Inventor Jooyeon AHN

Jooyeon AHN has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20260188438
    Abstract: A processor-implemented method includes extracting features from action data included in a synthesis process, the action data being in a time order, generating a vector sequence corresponding to the action data based on embedding data of the features extracted from the action data, and generating data regarding the synthesis process generated from encoded data of the vector sequence, by applying the vector sequence to a sequential data processing model.
    Type: Application
    Filed: July 7, 2025
    Publication date: July 2, 2026
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Seongeon PARK, Hyohyeong KANG, Hogyeong KIM, Jinwoo PARK, Myeong In KANG, Young-Seok KIM, Jooyeon AHN, Seonwoo LEE
  • Patent number: 12517291
    Abstract: A color conversion panel includes a color conversion layer including a color conversion region, and optionally, a partition wall defining the region of the color conversion layer. The color conversion region includes a first region corresponding to a green pixel, and the first region includes a first composite that is configured to emit a green light and includes a matrix and a plurality of luminescent nanostructures dispersed in the matrix. The luminescent nanostructures include a first semiconductor nanocrystal including a Group III-V compound and a second semiconductor nanocrystal including a zinc chalcogenide, the Group III-V compound includes indium, phosphorus, and optionally zinc, and the zinc chalcogenide includes zinc, selenium, and sulfur. The luminescent nanostructures do not include cadmium. and at least a portion of surfaces of the luminescent nanostructures includes the second semiconductor nanocrystal.
    Type: Grant
    Filed: March 4, 2022
    Date of Patent: January 6, 2026
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Taekhoon Kim, Tae Gon Kim, Hyeyeon Yang, Jongmin Lee, Shin Ae Jun, Deuk Kyu Moon, A Ra Jo, Jooyeon Ahn, Nayoun Won, Mi Hye Lim
  • Patent number: 12331236
    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.
    Type: Grant
    Filed: June 24, 2021
    Date of Patent: June 17, 2025
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae Gon Kim, Deukseok Chung, Jooyeon Ahn, Shin Ae Jun
  • Patent number: 12195657
    Abstract: A color conversion panel that includes a color conversion layer including one or more color conversion regions, and optionally, a partition wall defining the regions of the color conversion layer, and a display device including the same. The color conversion region includes a first region corresponding to a first pixel, and the first region includes a first composite including a matrix and a plurality of luminescent nanostructures dispersed in the matrix. The luminescent nanostructures include a first semiconductor nanocrystal including a Group III-V compound and a second semiconductor nanocrystal including a zinc chalcogenide. The Group III-V compound includes indium, phosphorus, and optionally, zinc or gallium, or zinc and gallium, and the zinc chalcogenide includes zinc, selenium, and sulfur. The luminescent nanostructures do not include cadmium.
    Type: Grant
    Filed: March 4, 2022
    Date of Patent: January 14, 2025
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jooyeon Ahn, Taekhoon Kim, Deuk Kyu Moon, Jongmin Lee, Mi Hye Lim, Shin Ae Jun, Minho Kim, Yebin Jung
  • Publication number: 20250002784
    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.
    Type: Application
    Filed: June 27, 2024
    Publication date: January 2, 2025
    Inventors: Garam PARK, Tae Gon KIM, Jooyeon AHN, Ji-Yeong KIM, Nayoun WON, Shin Ae JUN
  • Patent number: 12130508
    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.
    Type: Grant
    Filed: February 1, 2024
    Date of Patent: October 29, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Tae Gon Kim, Garam Park, Jooyeon Ahn, Shang Hyeun Park, Shin Ae Jun
  • Patent number: 12104107
    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.
    Type: Grant
    Filed: August 3, 2023
    Date of Patent: October 1, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Garam Park, Tae Gon Kim, Jooyeon Ahn, Ji-Yeong Kim, Nayoun Won, Shin Ae Jun
  • Patent number: 12031070
    Abstract: A quantum dot, and a quantum dot composite and a device including the same are disclosed, wherein the quantum dot includes a template including a first semiconductor nanocrystal, a quantum well (e.g., quantum well layer) disposed on the template and a shell disposed on the quantum well, the shell including a second semiconductor nanocrystal, and wherein the quantum dot does not include cadmium, wherein the first semiconductor nanocrystal includes a first zinc chalcogenide, wherein the second semiconductor nanocrystal includes a second zinc chalcogenide, and the quantum well layer includes an alloy semiconductor nanocrystal including indium (In), phosphorus (P), zinc (Zn), and a chalcogen element wherein a bandgap energy of the alloy semiconductor nanocrystal is less than a bandgap energy of the first semiconductor nanocrystal and less than a bandgap energy of the second semiconductor nanocrystal.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: July 9, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jooyeon Ahn, Hyeyeon Yang, Tae Gon Kim, Jongmin Lee, Shin Ae Jun
  • Publication number: 20240176171
    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.
    Type: Application
    Filed: February 1, 2024
    Publication date: May 30, 2024
    Inventors: Tae Gon KIM, Garam PARK, Jooyeon AHN, Shang Hyeun PARK, Shin Ae JUN
  • Patent number: 11927838
    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.
    Type: Grant
    Filed: July 11, 2023
    Date of Patent: March 12, 2024
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae Gon Kim, Garam Park, Jooyeon Ahn, Shang Hyeun Park, Shin Ae Jun
  • Publication number: 20230374379
    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.
    Type: Application
    Filed: August 3, 2023
    Publication date: November 23, 2023
    Inventors: Garam PARK, Tae Gon KIM, Jooyeon AHN, Ji-Yeong KIM, Nayoun WON, Shin Ae JUN
  • Publication number: 20230350237
    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.
    Type: Application
    Filed: July 11, 2023
    Publication date: November 2, 2023
    Inventors: Tae Gon KIM, Garam PARK, Jooyeon AHN, Shang Hyeun PARK, Shin Ae JUN
  • Patent number: 11795392
    Abstract: A cadmium-free quantum dot, a quantum dot-polymer composite including the cadmium-free quantum dot, a display device including the quantum dot-polymer composite, and an electroluminescent device including the cadmium-free quantum dot are disclosed, wherein the cadmium-free quantum dot includes a core including a first semiconductor nanocrystal including indium and phosphorus; a light emitting layer surrounding the core and including a second semiconductor nanocrystal including indium and phosphorus; a first shell disposed between the core and the light emitting layer and including a semiconductor nanocrystal including zinc, and selenium, sulfur, or a combination thereof; and a second shell disposed on the light emitting layer and including a semiconductor nanocrystal including zinc, and selenium, sulfur, or a combination thereof, and wherein the quantum is a single light emitting quantum dot having an emission peak wavelength in a range of about 500 nanometers (nm) to about 550 nm.
    Type: Grant
    Filed: April 20, 2021
    Date of Patent: October 24, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hyeyeon Yang, Jooyeon Ahn, Taekhoon Kim, Shang Hyeun Park, Nayoun Won, Mi Hye Lim, Shin Ae Jun
  • Patent number: 11760930
    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.
    Type: Grant
    Filed: January 25, 2022
    Date of Patent: September 19, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Garam Park, Tae Gon Kim, Jooyeon Ahn, Ji-Yeong Kim, Nayoun Won, Shin Ae Jun
  • Patent number: 11740495
    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.
    Type: Grant
    Filed: November 27, 2019
    Date of Patent: August 29, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae Gon Kim, Garam Park, Jooyeon Ahn, Shang Hyeun Park, Shin Ae Jun
  • Patent number: 11697764
    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.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: July 11, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Tae Gon Kim, Jongmin Lee, Jooyeon Ahn, Hyeyeon Yang, Shin Ae Jun
  • Patent number: 11597876
    Abstract: A quantum dot, and a quantum dot composite and a device including the same, wherein the quantum dot includes a seed including a first semiconductor nanocrystal, a quantum well layer disposed on the seed and a shell disposed on the quantum well layer, the shell including a second semiconductor nanocrystal, and wherein the quantum dot does not include cadmium, wherein the first semiconductor nanocrystal includes a first zinc chalcogenide, wherein the second semiconductor nanocrystal includes a second zinc chalcogenide, and the quantum well layer includes an alloy semiconductor nanocrystal including indium (In), phosphorus (P), and gallium (Ga), and wherein a bandgap energy of the alloy semiconductor nanocrystal is less than a bandgap energy of the first semiconductor nanocrystal and less than a bandgap energy of the second semiconductor nanocrystal.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: March 7, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyeyeon Yang, Jooyeon Ahn, Tae Gon Kim, Jongmin Lee, Shin Ae Jun
  • Publication number: 20220283345
    Abstract: A color conversion panel includes a color conversion layer including a color conversion region, and optionally, a partition wall defining the region of the color conversion layer. The color conversion region includes a first region corresponding to a green pixel, and the first region includes a first composite that is configured to emit a green light and includes a matrix and a plurality of luminescent nanostructures dispersed in the matrix. The luminescent nanostructures include a first semiconductor nanocrystal including a Group III-V compound and a second semiconductor nanocrystal including a zinc chalcogenide, the Group III-V compound includes indium, phosphorus, and optionally zinc, and the zinc chalcogenide includes zinc, selenium, and sulfur. The luminescent nanostructures do not include cadmium. and at least a portion of surfaces of the luminescent nanostructures includes the second semiconductor nanocrystal.
    Type: Application
    Filed: March 4, 2022
    Publication date: September 8, 2022
    Inventors: Taekhoon KIM, Tae Gon KIM, Hyeyeon YANG, Jongmin LEE, Shin Ae JUN, Deuk Kyu MOON, A Ra JO, Jooyeon AHN, Nayoun WON, Mi Hye LIM
  • Publication number: 20220282154
    Abstract: A color conversion panel that includes a color conversion layer including one or more color conversion regions, and optionally, a partition wall defining the regions of the color conversion layer, and a display device including the same. The color conversion region includes a first region corresponding to a first pixel, and the first region includes a first composite including a matrix and a plurality of luminescent nanostructures dispersed in the matrix. The luminescent nanostructures include a first semiconductor nanocrystal including a Group III-V compound and a second semiconductor nanocrystal including a zinc chalcogenide. The Group III-V compound includes indium, phosphorus, and optionally, zinc or gallium, or zinc and gallium, and the zinc chalcogenide includes zinc, selenium, and sulfur. The luminescent nanostructures do not include cadmium.
    Type: Application
    Filed: March 4, 2022
    Publication date: September 8, 2022
    Inventors: Jooyeon AHN, Taekhoon KIM, Deuk Kyu MOON, Jongmin LEE, Mi Hye LIM, Shin Ae JUN, Minho KIM, Yebin JUNG
  • Patent number: 11421151
    Abstract: A light emitting device including a semiconductor nanocrystal and a ligand bound to a surface of the semiconductor nanocrystal, wherein the ligand includes an organic thiol ligand or a salt thereof and a polyvalent metal compound including a metal including Zn, In, Ga, Mg, Ca, Sc, Sn, Ti, V, Cr, Mn, Fe, Co, Ni, Cu, Sr, Y, Zr, Nb, Mo, Cd, Ba, Au, Hg, Tl, or a combination thereof, and a display device including the light emitting device.
    Type: Grant
    Filed: November 22, 2017
    Date of Patent: August 23, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Oul Cho, Jooyeon Ahn, Eun Joo Jang, Dae Young Chung, Hyun A Kang, Tae Hyung Kim, Yun Sung Woo, Jeong Hee Lee, Shin Ae Jun