Patents by Inventor Illhwan LEE

Illhwan 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: 20240090265
    Abstract: Provided are a thin film transistor substrate which include a substrate, a buffer layer and a thin film transistor, a display apparatus including the thin film transistor substrate, and a method of manufacturing the display apparatus including the thin film transistor substrate. The buffer layer includes an inorganic insulating layer. An area ratio of a peak corresponding to an N—H bond in the buffer layer is 0.5% or less based on a total peak area in a Fourier transform infrared spectroscopy (FTIR).
    Type: Application
    Filed: November 13, 2023
    Publication date: March 14, 2024
    Inventors: Jinsuk Lee, Jin Jeon, Sugwoo Jung, Shinbeom Choi, Youngin Hwang, Byungno Kim, Heeyeon Kim, Kohei EBISUNO, Nalae Lee, Illhwan Lee, Jongmin Lee, Joohyeon Jo, Changha Kwak, Yongseon Jo
  • Patent number: 11864421
    Abstract: Provided are a thin film transistor substrate which include a substrate, a buffer layer and a thin film transistor, a display apparatus including the thin film transistor substrate, and a method of manufacturing the display apparatus including the thin film transistor substrate. The buffer layer includes an inorganic insulating layer. An area ratio of a peak corresponding to an N—H bond in the buffer layer is 0.5% or less based on a total peak area in a Fourier transform infrared spectroscopy (FTIR).
    Type: Grant
    Filed: September 28, 2020
    Date of Patent: January 2, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jinsuk Lee, Jin Jeon, Sugwoo Jung, Shinbeom Choi, Youngin Hwang, Byungno Kim, Heeyeon Kim, Kohei Ebisuno, Nalae Lee, Illhwan Lee, Jongmin Lee, Joohyeon Jo, Changha Kwak, Yongseon Jo
  • Publication number: 20210265438
    Abstract: Provided are a thin film transistor substrate which include a substrate, a buffer layer and a thin film transistor, a display apparatus including the thin film transistor substrate, and a method of manufacturing the display apparatus including the thin film transistor substrate. The buffer layer includes an inorganic insulating layer. An area ratio of a peak corresponding to an N—H bond in the buffer layer is 0.5% or less based on a total peak area in a Fourier transform infrared spectroscopy (FTIR).
    Type: Application
    Filed: September 28, 2020
    Publication date: August 26, 2021
    Inventors: Jinsuk Lee, Jin Jeon, Sugwoo Jung, Shinbeom Choi, Youngin Hwang, Byungno Kim, Heeyeon Kim, Kohei EBISUNO, Nalae Lee, Illhwan Lee, Jongmin Lee, Joohyeon Jo, Changha Kwak, Yongseon Jo
  • Patent number: 10599000
    Abstract: The present disclosure provides a smart window including a first base layer and a second base layer positioned to face each other; a first conductive layer and a second conductive layer respectively positioned at inner surfaces of the first base layer and the second base layer; and an electrolyte layer interposed between the first conductive layer and the second conductive layer, wherein the first conductive layer includes a plurality of first nanostructures, and the second conductive layer includes a plurality of second nanostructures having a different average length from the plurality of first nanostructures.
    Type: Grant
    Filed: February 16, 2017
    Date of Patent: March 24, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang Hwan Cho, Jong Lam Lee, Chung Sock Choi, So Young Lee, Sun Young Jung, Illhwan Lee, Ki Ryong Jeong
  • Publication number: 20170371220
    Abstract: The present disclosure provides a smart window including a first base layer and a second base layer positioned to face each other; a first conductive layer and a second conductive layer respectively positioned at inner surfaces of the first base layer and the second base layer; and an electrolyte layer interposed between the first conductive layer and the second conductive layer, wherein the first conductive layer includes a plurality of first nanostructures, and the second conductive layer includes a plurality of second nanostructures having a different average length from the plurality of first nanostructures.
    Type: Application
    Filed: February 16, 2017
    Publication date: December 28, 2017
    Inventors: Sang Hwan CHO, Jong Lam LEE, Chung Sock CHOI, So Young LEE, Sun Young JUNG, Illhwan LEE, Ki Ryong JEONG
  • Patent number: 9843023
    Abstract: A display device including a substrate, a display unit on the substrate and including a display element for displaying an image, at least one organic encapsulation film formed on the display unit, and at least one refractive-index control encapsulation film adjacent to the at least one organic encapsulation film. A refractive index of a region of the at least one refractive-index control encapsulation film closer to the at least one organic encapsulation film is closer to a refractive index of the at least one organic encapsulation film than is a refractive index of a region of the at least one refractive-index control encapsulation film further from the at least one organic encapsulation film.
    Type: Grant
    Filed: August 27, 2015
    Date of Patent: December 12, 2017
    Assignees: SAMSUNG DISPLAY CO., LTD., POSTECH ACADEMY-INDUSTRY FOUNDATION
    Inventors: Sanghwan Cho, Seungyong Song, Jonglam Lee, Chungsock Choi, Bola Lee, Illhwan Lee
  • Publication number: 20160190519
    Abstract: A display device including a substrate, a display unit on the substrate and including a display element for displaying an image, at least one organic encapsulation film formed on the display unit, and at least one refractive-index control encapsulation film adjacent to the at least one organic encapsulation film. A refractive index of a region of the at least one refractive-index control encapsulation film closer to the at least one organic encapsulation film is closer to a refractive index of the at least one organic encapsulation film than is a refractive index of a region of the at least one refractive-index control encapsulation film further from the at least one organic encapsulation film.
    Type: Application
    Filed: August 27, 2015
    Publication date: June 30, 2016
    Inventors: Sanghwan CHO, Seungyong SONG, Jonglam LEE, Chungsock CHOI, Bola LEE, Illhwan LEE