Patents by Inventor Chang Hee Lee

Chang Hee Lee 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: 20240021955
    Abstract: The present invention relates to a separator, a method of manufacturing the separator, and an electrochemical device including the separator. An embodiment of the present invention may provide a separator including: a porous substrate; an inorganic particle layer provided on at least one surface of the porous substrate; and a heat fusion layer provided on at least one surface of the inorganic particle layer, wherein a surface gloss value at 60° C. of a surface of the heat fusion layer is 10 GU or more.
    Type: Application
    Filed: September 25, 2023
    Publication date: January 18, 2024
    Inventors: Won Sub KWACK, Tae Wook KWON, Heung Taek BAE, Chang Hee LEE
  • Publication number: 20230416548
    Abstract: A light emitting element ink and a method of manufacturing a display device are provided. The light emitting element ink includes a light emitting element solvent, a light emitting element dispersed in the light emitting element solvent, the light emitting element including a plurality of semiconductor layers and an insulating film surrounding outer surfaces of the semiconductor layers, a thickener dispersed in the light emitting element solvent, wherein a compound of the thickener includes a functional group capable of forming a hydrogen bond together with a compound of the light emitting element solvent or another compound of the thickener and the compound of the thickener is represented by Chemical Formula 1.
    Type: Application
    Filed: September 12, 2023
    Publication date: December 28, 2023
    Inventors: Jun Bo SIM, Hyo Jin KO, Duk Ki KIM, Chang Hee LEE, Jae Kook HA
  • Publication number: 20230402716
    Abstract: Provided are a separator, a method of manufacturing the separator, and an electrochemical device including the separator. According to an embodiment of the present disclosure, a separator including a porous substrate and an inorganic particle layer provided on at least one surface of the porous substrate, the inorganic particle layer including inorganic particles, a hydrolytic condensate binder of a polar silane compound, and an aqueous polymer binder, wherein an amount of change in peel strength, ?P is 1.1 or more may be provided.
    Type: Application
    Filed: June 8, 2023
    Publication date: December 14, 2023
    Inventors: Heung Taek BAE, Chang Hee LEE, Won Sub KWACK, Tae Wook KWON
  • Publication number: 20230402712
    Abstract: A separator for a secondary battery, a method of manufacturing the separator, and a secondary battery including the separator, where these separator includes: a porous substrate and an inorganic particle layer formed on at least one surface of the porous substrate, wherein a heat shrinkage rate S of the separator is 8% or less may be provided.
    Type: Application
    Filed: June 8, 2023
    Publication date: December 14, 2023
    Inventors: Tae Wook KWON, Won Sub KWACK, Heung Taek BAE, Chang Hee LEE
  • Publication number: 20230402715
    Abstract: A separator, a method of manufacturing the separator, and an electrochemical device including the separator with the separator including: a porous substrate; and an inorganic particle layer provided on at least one surface of the porous substrate, wherein the inorganic particle layer includes inorganic particles and a hydrolytic condensate of a silane compound.
    Type: Application
    Filed: June 8, 2023
    Publication date: December 14, 2023
    Inventors: Chang Hee LEE, Won Sub KWACK, Tae Wook KWON, Heung Taek BAE
  • Patent number: 11811090
    Abstract: The present invention relates to a separator, a method of manufacturing the separator, and an electrochemical device including the separator. An embodiment of the present invention may provide a separator including: a porous substrate; an inorganic particle layer provided on at least one surface of the porous substrate; and a heat fusion layer provided on at least one surface of the inorganic particle layer, wherein a surface gloss value at 60° C. of a surface of the heat fusion layer is 10 GU or more.
    Type: Grant
    Filed: June 8, 2023
    Date of Patent: November 7, 2023
    Assignees: SK INNOVATION CO., LTD., SK IE TECHNOLOGY CO., LTD.
    Inventors: Won Sub Kwack, Tae Wook Kwon, Heung Taek Bae, Chang Hee Lee
  • Patent number: 11787964
    Abstract: A light emitting element ink and a method of manufacturing a display device are provided. The light emitting element ink includes a light emitting element solvent, a light emitting element dispersed in the light emitting element solvent, the light emitting element including a plurality of semiconductor layers and an insulating film surrounding outer surfaces of the semiconductor layers, a thickener dispersed in the light emitting element solvent, wherein a compound of the thickener includes a functional group capable of forming a hydrogen bond together with a compound of the light emitting element solvent or another compound of the thickener and the compound of the thickener is represented by Chemical Formula 1.
    Type: Grant
    Filed: April 16, 2021
    Date of Patent: October 17, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jun Bo Sim, Hyo Jin Ko, Duk Ki Kim, Chang Hee Lee, Jae Kook Ha
  • Publication number: 20230327287
    Abstract: A separator and an electrochemical device including the same. The separator includes: a porous substrate; and a coating layer provided on one or both surfaces of the porous substrate. The coating layer includes inorganic particles, a particulate polymer binder, and an aqueous polymer binder, and the separator has a Ga/Gc value represented by the following Equation (1) of 0.2 to 0.75: (1) Ga/Gc, wherein Ga is a surface gloss of the coating layer, and Gc is a surface gloss of a coating layer of a separator in which the coating layer including 90.0 to 99.9 wt % of inorganic particles having an average particle diameter of 100 to 500 nm, BET of 15 to 20 m2/g, and a bulk density of 200 to 300 kg/m3 and 0.1 to 10 wt % of an aqueous polymer binder is provided at a thickness of 3 ?m or less on the porous substrate.
    Type: Application
    Filed: April 7, 2023
    Publication date: October 12, 2023
    Inventors: Yun Bong KIM, Eun Ji OH, Chang Hee LEE, Kyu Young CHO
  • Patent number: 11728464
    Abstract: A light emitting element includes a first semiconductor layer; an active layer on the first semiconductor layer; a second semiconductor layer on the active layer; an insulating film surrounding an outer peripheral surface of each of the first semiconductor layer, the active layer and the second semiconductor layer; and a polymer film including a polymer chain and on at least a portion of a surface of the insulating film.
    Type: Grant
    Filed: July 21, 2020
    Date of Patent: August 15, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jong Won Park, Chang Hee Lee, Duk Ki Kim, Yun Ku Jung, Yun Hyuk Ko, Jae Kook Ha
  • Publication number: 20230255048
    Abstract: A display device includes a substrate on which pixels are defined, a pixel electrode disposed for each of the pixels on the substrate, a pixel defining layer disposed along a boundary of the pixels, the pixel defining layer including an opening exposing the pixel electrode, a light emitting layer disposed on the pixel electrode in the opening of the pixel defining layer, and a hole injection layer disposed between the pixel electrode and the light emitting layer. The hole injection layer includes an adhesion promoting layer disposed on the pixel electrode.
    Type: Application
    Filed: April 20, 2023
    Publication date: August 10, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Seung Mook LEE, Chang Hee LEE, Yool Guk KIM, Young Mo KOO, Jae Kook HA
  • Publication number: 20230215983
    Abstract: A method for fabricating a light emitting element includes preparing a substrate, and forming a first semiconductor material layer, a light emitting material layer, a second semiconductor material layer and an electrode material layer on the substrate, forming semiconductor rods spaced apart from each other by etching the first semiconductor material layer, the light emitting material layer, the second semiconductor material layer and the electrode material layer in a direction perpendicular to an upper surface of the substrate, forming an insulating layer surrounding sides of the semiconductor rods through a sol-gel process by immersing the substrate, including the semiconductor rods, in a solution containing a precursor material, and forming light emitting elements by separating the semiconductor rods, including the insulating layer, from the substrate, and the light emitting elements have an external quantum efficiency of 20.2±0.6%.
    Type: Application
    Filed: January 6, 2023
    Publication date: July 6, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Mi Hyang SHEEN, Yun Hyuk KO, Dong Uk KIM, Na Ri AHN, Chang Hee LEE, Do Hyung KIM, Ran KIM, In Pyo KIM, Ki Young YEON, Je Won YOO, Joo Hee LEE, Sang Ho JEON, Jung Woon JUNG, Chan Woo JOO, Jin Young CHOI, Na Mi HONG, Jong Il KIM, Jin Ho BYUN, Sang Ho OH, Jae Kwang LEE, Yong Seok CHOI, Jong Hoon HA
  • Publication number: 20230110744
    Abstract: A display device includes an auxiliary electrode disposed on a substrate, a bank layer disposed on the auxiliary electrode, a conductive layer disposed on the auxiliary electrode, the conductive layer including a base portion and protrusions protruded from the base portion, an organic layer disposed on the conductive layer, and a cathode electrode disposed on the organic layer, the cathode electrode being in contact with the protrusions.
    Type: Application
    Filed: May 17, 2022
    Publication date: April 13, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Ji Yoon KIM, Chang Hee LEE, Dong Hoon KWAK, Young Mo KOO
  • Patent number: 11577493
    Abstract: The present invention relates to a method capable of easily manufacturing a curved thin glass sheet and a curved joined glass sheet to which functionality is added.
    Type: Grant
    Filed: May 21, 2019
    Date of Patent: February 14, 2023
    Assignee: LG CHEM, LTD.
    Inventors: Jun Hak Oh, Ho Seong Kang, Jae Hyuk Yoon, Chang Hee Lee
  • Publication number: 20230006112
    Abstract: A color changing substrate comprises a substrate comprising emission areas and non-emission areas, a color filter layer on the substrate and comprising a light blocking member partitioning the emission areas and the non-emission areas, and a plurality of color filters in areas surrounded by the light blocking member, a bank overlapping the light blocking member, a wavelength control layer comprising wavelength conversion layers and a light transmitting layer in areas surrounded by the bank, a reflective layer overlapping the bank, a first metal oxide layer overlapping the reflective layer, and a self-assembled layer overlapping the first metal oxide layer.
    Type: Application
    Filed: March 23, 2022
    Publication date: January 5, 2023
    Inventors: Ji Yoon KIM, Chang Hee LEE, Se Hun KIM, Young Mo KOO, Jae Kook HA
  • Patent number: 11519906
    Abstract: Natural and/or synthetic antibodies for specific proteins are adhered to nanoparticles. The nanoparticles are adhered to a substrate and the substrate is exposed to a sample that may contain the specific proteins. The substrates are then tested with surface enhanced Raman scattering techniques and/or localized surface plasmon resonance techniques to quantify the amount of the specific protein in the sample.
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: December 6, 2022
    Assignee: Washington University
    Inventors: Srikanth Singamaneni, Evan Kharasch, Jeremiah Morrissey, Chang Hee Lee
  • Patent number: 11519907
    Abstract: Natural and/or synthetic antibodies for specific proteins are adhered to nanoparticles. The nanoparticles are adhered to a substrate and the substrate is exposed to a sample that may contain the specific proteins. The substrates are then tested with surface enhanced Raman scattering techniques and/or localized surface plasmon resonance techniques to quantify the amount of the specific protein in the sample.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: December 6, 2022
    Assignee: Washington University
    Inventors: Srikanth Singamaneni, Evan Kharasch, Jeremiah Morrissey, Chang Hee Lee
  • Publication number: 20220375996
    Abstract: A display device may include a substrate including a display area and a non-display area; and a plurality of pixels disposed in the display area, the plurality of pixels each including an emission area and a non-emission area. Each of the plurality of pixels may include at least one light emitting element in the emission area; a first pixel electrode and a second pixel electrode electrically connected to the at least one light emitting element; a bank including a first opening corresponding to the emission area; a color conversion layer disposed in the emission area to correspond to the at least one light emitting element; a barrier layer disposed on the bank and the color conversion layer; and a low refractive layer disposed on the barrier layer. The barrier layer may include silicon oxide (SiOx) having cured polysilazane.
    Type: Application
    Filed: January 3, 2022
    Publication date: November 24, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Young Gu KIM, Chang Hee LEE, Yun Hee PARK, Ji Yun PARK, Bong Sung SEO, Baek Kyun JEON, Kyung Seon TAK
  • Patent number: 11456439
    Abstract: A light emitting element and a display device including the same are provided. The light emitting element includes a first semiconductor layer, a second semiconductor layer, and an active layer between the first semiconductor layer and the second semiconductor layer, a protective layer surrounding an outer surface of at least one of the first semiconductor layer, the second semiconductor layer, and the active layer, and an insulating layer surrounding an outer surface of the protective layer. A surface of at least one of the first semiconductor layer, the second semiconductor layer, and the active layer includes a first lattice point, wherein the protective layer includes a first atom and a second atom, and wherein the first atom of the protective layer is at the first lattice point.
    Type: Grant
    Filed: September 24, 2020
    Date of Patent: September 27, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yun Hyuk Ko, Chang Hee Lee, Jin Oh Kwag, Keun Kyu Song, Yun Ku Jung, Sung-Chan Jo, Jae Kook Ha
  • Publication number: 20220278297
    Abstract: A quantum dot light emitting diode according to various embodiments of the present disclosure includes a first electrode and a second electrode that are opposite to each other; a light emitting layer that is located between the first electrode and the second electrode and includes a quantum dot; and an electron transport layer that is arranged between the first electrode and the light emitting layer and includes a metal oxide thin film, wherein the metal oxide thin film has a composition including at least one selected from the group consisting of In2O3, ZnO, SiO2 and SnO2.
    Type: Application
    Filed: June 10, 2020
    Publication date: September 1, 2022
    Inventors: Young Woo HEO, Hyeok KIM, Joon Hyung LEE, Jeong Joo KIM, Sang Wook LEE, Jeong Woo HAN, Sang Hyub KIM, Chang Hee LEE
  • Publication number: 20220223772
    Abstract: A light emitting diode includes: a first semiconductor layer; an active layer located on one surface of the first semiconductor layer; a second semiconductor layer located on one surface of the active layer; an electrode layer located on one surface of the second semiconductor layer; and a bonding electrode layer located on the other surface of the first semiconductor layer.
    Type: Application
    Filed: August 24, 2021
    Publication date: July 14, 2022
    Inventors: Chang Hee LEE, Young Il KIM, Hyo Jin KO, Dong Hoon KWAK, Dong Uk KIM, Se Hun KIM, Ji Yoon KIM