Patents by Inventor Shang-hyeun Park

Shang-hyeun Park 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: 20230295493
    Abstract: A color conversion panel, comprising a color conversion layer comprising a color conversion region and optionally a partition wall defining each region of the color conversion layer, wherein the color conversion region comprises a first region corresponding to a first pixel, the first region comprises a first composite, the first composite comprises a matrix and a semiconductor nanoparticle, wherein the semiconductor nanoparticle is dispersed in the matrix, the semiconductor nanoparticle comprises silver, a Group 13 metal, zinc, and a chalcogen element, the semiconductor nanoparticle emits a first light, the Group 13 metal is indium, gallium, aluminum, or a combination thereof, the chalcogen element is sulfur, selenium, or a combination thereof, and in the semiconductor nanoparticle, a mole ratio of zinc to a total sum of silver, Group 13 metal, and zinc is greater than or equal to about 0.01:1.
    Type: Application
    Filed: March 17, 2023
    Publication date: September 21, 2023
    Inventors: Nayoun WON, Tae-Gon KIM, Minho KIM, Shang Hyeun PARK, Seungrim YANG, Jun Ho LEE, Shin Ae JUN, Yebin JUNG, A Ra JO
  • Patent number: 11753588
    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.
    Type: Grant
    Filed: November 9, 2020
    Date of Patent: September 12, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Taekhoon Kim, Nayoun Won, Tae Gon Kim, Mi Hye Lim, Shin Ae Jun, Shang Hyeun Park
  • 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
  • Publication number: 20230255043
    Abstract: A cadmium-free, core shell quantum dot, a quantum dot polymer composite, and electronic devices including the quantum dot polymer composite. The core shell quantum dot has an extinction coefficient per gram of greater than or equal to 0.3, an ultraviolet-visible absorption spectrum curve that has a positive differential coefficient value at 450 nm, wherein the core shell quantum dot includes a semiconductor nanocrystal core including indium and phosphorus, and optionally zinc, and a semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the shell including zinc, selenium, and sulfur, wherein the core shell quantum dot has a quantum efficiency of greater than or equal to about 80%, and is configured to emit green light upon excitation.
    Type: Application
    Filed: April 3, 2023
    Publication date: August 10, 2023
    Inventors: Nayoun WON, Mi Hye LIM, Tae Gon KIM, Taekhoon KIM, Shang Hyeun PARK, Shin Ae JUN
  • Patent number: 11708529
    Abstract: A composition including a quantum dot, a dispersing agent for dispersing the quantum dot, a polymerizable monomer including a carbon-carbon double bond, an initiator, a hollow metal oxide particulate, and a solvent, and a quantum dot-polymer composite manufactured from the composition.
    Type: Grant
    Filed: May 17, 2022
    Date of Patent: July 25, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Shang Hyeun Park, Jong-Hoon Ka, Shin Ae Jun
  • Publication number: 20230193131
    Abstract: A quantum dot including a core including a semiconductor nanocrystal including a Group III-V compound; and a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the first semiconductor nanocrystal shell including zinc, selenium, and optionally sulfur, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell, the second semiconductor nanocrystal shell including zinc, sulfur, and optionally selenium, wherein the quantum dot does not include cadmium, an emission peak wavelength of the quantum dot is in a range of about 500 nanometers (nm) to about 550 nm, and an ultraviolet-visible absorption spectrum of the quantum dot includes a first exciton absorption peak and a second exciton absorption peak, a composition including the same, a composite, and an electronic device.
    Type: Application
    Filed: February 13, 2023
    Publication date: June 22, 2023
    Inventors: Nayoun WON, Garam PARK, Shin Ae JUN, Tae Gon KIM, Taekhoon KIM, Shang Hyeun PARK, Mi Hye LIM
  • Patent number: 11661547
    Abstract: A quantum dot, including a core including a first semiconductor material that includes indium; and a shell including a second semiconductor material, and disposed on the core, wherein the first semiconductor material and the second semiconductor material are different, wherein the shell has at least two branch portions and a valley portion connecting the at least two branch portions, at least one of the at least two branch portions comprises Zn, Se, and S, and a content of sulfur in the at least one branch portion increases in a direction away from the core.
    Type: Grant
    Filed: May 26, 2020
    Date of Patent: May 30, 2023
    Assignees: SAMSUNG ELECTRONICS CO., LTD., SAMSUNG SDI CO., LTD., SAMSUNG DISPLAY CO., LTD.
    Inventors: Shin Ae Jun, Taekhoon Kim, Garam Park, Yong Seok Han, Eun Joo Jang, Hyo Sook Jang, Tae Won Jeong, Shang Hyeun Park
  • Publication number: 20230143818
    Abstract: The present disclosure provides a display panel including: a substrate; a plurality of light emitting elements including semiconductor light emitting chips and disposed on the substrate; a plurality of color conversion layers overlapped with the plurality of light emitting elements and disposed thereon, respectively; and a plurality of absorption-type color filter layers directly disposed and having a surface shape of the plurality of color conversion layers, respectively, where a pitch between adjacent light emitting elements of the plurality of light emitting elements is less than or equal to about 100 micrometers, and at least one of the plurality of color conversion layers includes quantum dots.
    Type: Application
    Filed: November 9, 2022
    Publication date: May 11, 2023
    Inventors: Deuk Seok CHUNG, Tae-Gon KIM, Shang Hyeun PARK, Min Jong BAE, Jong Hoon WON, Shin Ae JUN, A Ra JO
  • Publication number: 20230126029
    Abstract: Provided are a display panel, and an electronic device including display panel. The display panel includes: a substrate; a plurality of light emitting elements disposed on the substrate, each of the plurality of light emitting elements including a semiconductor light emitting chip; a plurality of micro lenses disposed on the light emitting elements, respectively, each of the micro lenses surrounding each of the light emitting elements; and a plurality of color conversion layers disposed on or under the plurality of micro lenses, respectively, each of the color conversion layers having a shape corresponding to each of the plurality of micro lenses.
    Type: Application
    Filed: October 26, 2022
    Publication date: April 27, 2023
    Inventors: A Ra JO, Deukseok CHUNG, Tae-Gon KIM, Shang Hyeun PARK, Min Jong BAE, Jong Hoon WON, Shin Ae JUN
  • Publication number: 20230106180
    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.
    Type: Application
    Filed: November 17, 2022
    Publication date: April 6, 2023
    Inventors: 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
  • Patent number: 11621403
    Abstract: A cadmium-free, core shell quantum dot, a quantum dot polymer composite, and electronic devices including the quantum dot polymer composite. The core shell quantum dot has an extinction coefficient per gram of greater than or equal to 0.3, an ultraviolet-visible absorption spectrum curve that has a positive differential coefficient value at 450 nm, wherein the core shell quantum dot includes a semiconductor nanocrystal core including indium and phosphorus, and optionally zinc, and a semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the shell including zinc, selenium, and sulfur, wherein the core shell quantum dot has a quantum efficiency of greater than or equal to about 80%, and is configured to emit green light upon excitation.
    Type: Grant
    Filed: October 26, 2020
    Date of Patent: April 4, 2023
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Nayoun Won, Mi Hye Lim, Tae Gon Kim, Taekhoon Kim, Shang Hyeun Park, Shin Ae Jun
  • Patent number: 11613699
    Abstract: A quantum dot including a core including a semiconductor nanocrystal including a Group III-V compound; and a first semiconductor nanocrystal shell disposed on the semiconductor nanocrystal core, the first semiconductor nanocrystal shell including zinc, selenium, and optionally sulfur, and a second semiconductor nanocrystal shell disposed on the first semiconductor nanocrystal shell, the second semiconductor nanocrystal shell including zinc, sulfur, and optionally selenium, wherein the quantum dot does not include cadmium, an emission peak wavelength of the quantum dot is in a range of about 500 nanometers (nm) to about 550 nm, and an ultraviolet-visible absorption spectrum of the quantum dot includes a first exciton absorption peak and a second exciton absorption peak, a composition including the same, a composite, and an electronic device.
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: March 28, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Nayoun Won, Garam Park, Shin Ae Jun, Tae Gon Kim, Taekhoon Kim, Shang Hyeun Park, Mi Hye Lim
  • Patent number: 11613692
    Abstract: A quantum dot-polymer composite pattern including at least one repeating section configured to emit light of a predetermined wavelength, and a production method and a display device including the quantum dot-polymer composite are disclosed. The quantum dot-polymer composite includes a polymer matrix including linear polymer including a carboxylic acid group-containing repeating unit and a plurality of cadmium-free quantum dots dispersed in the polymer matrix, has an absorption rate of greater than or equal to about 85% for light at wavelength of about 450 nm, and has an area ratio of a hydroxy group peak relative to an acrylate peak of greater than or equal to about 2.6 in Fourier transform infrared spectroscopy.
    Type: Grant
    Filed: May 22, 2020
    Date of Patent: March 28, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Shang Hyeun Park, Tae Gon Kim, Shin Ae Jun
  • Publication number: 20230078393
    Abstract: A display panel, a method of manufacturing the same, and an electronic device including the display panel. The display panel includes a light emitting device array including a plurality of light emitting devices, a color conversion layer disposed on the light emitting device array and converting the emission spectrum of light emitted from the light emitting device array, and an encapsulation film on the color conversion layer, wherein the color conversion layer includes a quantum dot-polymer pattern including a quantum dot-polymer composite, an average roughness (Ra) of an upper surface of the quantum dot-polymer pattern is less than or equal to about 3% of a thickness of the encapsulation film.
    Type: Application
    Filed: June 14, 2022
    Publication date: March 16, 2023
    Inventors: Deukseok CHUNG, Shin Ae JUN, Tae Gon KIM, Shang Hyeun PARK, Min Jong BAE, A Ra JO
  • Publication number: 20230043195
    Abstract: A quantum dot, a quantum dot composite including the quantum dot, a display panel including the quantum dot composite, and an electronic device including the display panel are provided. The quantum dot includes indium, zinc, phosphorus, and selenium, and does not include cadmium, and has an optical density (OD) per 1 mg for a wavelength of 450 nm of from about 0.2 to about 0.27 and an emission peak of from about 500 nm to about 550 nm, or an optical density per 1 mg for a wavelength of about 450 nm of from about 0.5 to about 0.7 and an emission peak of from about 610 nm to about 660 nm.
    Type: Application
    Filed: July 22, 2022
    Publication date: February 9, 2023
    Inventors: Tae Gon KIM, Shang Hyeun PARK, Taekhoon KIM, Garam PARK, Nayoun WON
  • Publication number: 20230022260
    Abstract: A quantum dot, a quantum dot composite including the quantum dot, a composition for preparing the quantum dot composite, a display panel including the quantum dot composite, and an electronic apparatus including the display panel. The quantum dot includes a semiconductor nanocrystal core including indium and phosphorus, the semiconductor nanocrystal core having an emission peak wavelength from about 600 nm to about 650 nm, or an emission peak wavelength from about 500 nm to about 550 nm, and an area of a peak from about 400° C. to about 500° C. is 0.17 times to 0.5 times relative to an area of a peak from about 200° C. to about 300° C. in a thermogravimetric analysis (TGA) graph as determined with a differential scanning calorimeter (DSC).
    Type: Application
    Filed: July 6, 2022
    Publication date: January 26, 2023
    Inventors: Shang Hyeun PARK, Shin Ae JUN, Tae Gon KIM, Min Jong BAE, Deukseok CHUNG, A Ra JO
  • Patent number: 11505740
    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.
    Type: Grant
    Filed: September 30, 2021
    Date of Patent: November 22, 2022
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: 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
  • Publication number: 20220278256
    Abstract: A luminescent nanostructure, a production method for making the luminescent nanostructure, and an electronic device including the luminescent nanostructure. The luminescent nanostructure includes a semiconductor nanocrystal including a Group 13 metal nitride. The luminescent nanostructure has an aspect ratio of greater than or equal to about 1, and an organic compound having an M-O moiety, wherein M is Ti, Al, Zr, Sn, or Si that is bound to at least a portion of the surface of the luminescent nanostructure.
    Type: Application
    Filed: February 22, 2022
    Publication date: September 1, 2022
    Inventors: Sang Soo JEE, Shang Hyeun PARK, Shin Ae JUN
  • Publication number: 20220275273
    Abstract: A composition including a quantum dot, a dispersing agent for dispersing the quantum dot, a polymerizable monomer including a carbon-carbon double bond, an initiator, a hollow metal oxide particulate, and a solvent, and a quantum dot-polymer composite manufactured from the composition.
    Type: Application
    Filed: May 17, 2022
    Publication date: September 1, 2022
    Inventors: Shang Hyeun PARK, Jong-Hoon KA, Shin Ae JUN
  • Publication number: 20220267632
    Abstract: An ink composition and luminescent nanostructure composite, and an electronic device including the luminescent nanostructure composite. The ink composition includes a plurality of titanium oxide particles, a plurality of luminescent nanostructures (e.g., quantum dots), a monomer including a carbon-carbon unsaturated bond, and optionally an organic solvent. The titanium oxide particles have an average size of greater than or equal to about 10 nm and less than or equal to about 900 nm, and the titanium oxide particles comprise an organosilane compound. The ink composition has a total solid content (TSC) of greater than or equal to about 90 wt %, and an amount of the titanium oxide particles in the ink composition is greater than or equal to about 1 wt % based on the total weight of the ink composition. The ink composition is configured to emit a first light.
    Type: Application
    Filed: February 23, 2022
    Publication date: August 25, 2022
    Inventors: Sang Soo JEE, Shang Hyeun PARK, Shin Ae JUN