Patents by Inventor Su Hui Lee

Su Hui 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).

  • Patent number: 12598806
    Abstract: The present disclosure relates to a temperature sensor circuit for measuring temperature change inside a pixel of a high-brightness active matrix micro-light-emitting diode (micro-LED) display, and a display apparatus including the temperature sensor circuit. The temperature sensor circuit according to one embodiment of the present disclosure includes a first thin film transistor, a second thin film transistor interconnected with the first thin film transistor, and a temperature measurement unit for measuring temperature based on an output voltage according to difference in off current between the first thin film transistor and the second thin film transistor.
    Type: Grant
    Filed: April 22, 2021
    Date of Patent: April 7, 2026
    Assignee: UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
    Inventors: Jin Jang, Yuanfeng Chen, Su Hui Lee
  • Patent number: 12446245
    Abstract: Disclosed is a method of fabricating an oxide semiconductor thin-film transistor, the method including a step of forming an oxide semiconductor layer including a channel region, a source region, and a drain region on a substrate; a step of forming a gate insulating layer on the channel region; a step of forming a gate electrode on the gate insulating layer; and a step of forming a source electrode and a drain electrode on the source and drain regions, respectively, wherein the step of forming an oxide semiconductor layer includes a step of selectively plasma-treating the source and drain regions of the oxide semiconductor layer with a fluorine (F)-based gas, and the source and drain regions contain fluorine (F) at a concentration of 2×1014/cm3 to 17.5×1021/cm3.
    Type: Grant
    Filed: April 16, 2019
    Date of Patent: October 14, 2025
    Assignee: UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
    Inventors: Jin Jang, Su Hui Lee
  • Patent number: 11374129
    Abstract: Disclosed are an oxide semiconductor thin film transistor and a method of fabricating the same. An oxide semiconductor thin film transistor according to an embodiment of the present disclosure includes a substrate; a first gate electrode formed on the substrate; a gate insulator formed on the first gate electrode; an oxide semiconductor layer formed on the gate insulator; source and drain electrodes formed by depositing carbon nanotubes (CNTs) and a metal electrode on the formed the oxide semiconductor layer and patterning the deposited CNTs and metal electrode such that the source electrode and the drain electrode are spaced apart from each other; and a passivation layer formed on the formed source and drain electrodes, wherein the source and drain electrodes serve to prevent diffusion of a metal of the metal electrode into the formed oxide semiconductor layer, due to the CNTs of the source and drain electrodes.
    Type: Grant
    Filed: August 21, 2019
    Date of Patent: June 28, 2022
    Assignee: UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
    Inventors: Jin Jang, Su Hui Lee
  • Publication number: 20220140114
    Abstract: Disclosed is a method of fabricating an oxide semiconductor thin-film transistor, the method including a step of forming an oxide semiconductor layer including a channel region, a source region, and a drain region on a substrate; a step of forming a gate insulating layer on the channel region; a step of forming a gate electrode on the gate insulating layer; and a step of forming a source electrode and a drain electrode on the source and drain regions, respectively, wherein the step of forming an oxide semiconductor layer includes a step of selectively plasma-treating the source and drain regions of the oxide semiconductor layer with a fluorine (F)-based gas, and the source and drain regions contain fluorine (F) at a concentration of 2×1014/cm3 to 17.5×1021/cm3.
    Type: Application
    Filed: April 16, 2019
    Publication date: May 5, 2022
    Applicant: UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
    Inventors: Jin JANG, Su Hui LEE
  • Publication number: 20220136908
    Abstract: The present disclosure relates to a temperature sensor circuit for measuring temperature change inside a pixel of a high-brightness active matrix micro-light-emitting diode (micro-LED) display, and a display apparatus including the temperature sensor circuit. The temperature sensor circuit according to one embodiment of the present disclosure includes a first thin film transistor, a second thin film transistor interconnected with the first thin film transistor, and a temperature measurement unit for measuring temperature based on an output voltage according to difference in off current between the first thin film transistor and the second thin film transistor.
    Type: Application
    Filed: April 22, 2021
    Publication date: May 5, 2022
    Applicant: UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
    Inventors: Jin JANG, Yuanfeng CHEN, Su Hui LEE
  • Publication number: 20200066913
    Abstract: Disclosed are an oxide semiconductor thin film transistor and a method of fabricating the same. An oxide semiconductor thin film transistor according to an embodiment of the present disclosure includes a substrate; a first gate electrode formed on the substrate; a gate insulator formed on the first gate electrode; an oxide semiconductor layer formed on the gate insulator; source and drain electrodes formed by depositing carbon nanotubes (CNTs) and a metal electrode on the formed the oxide semiconductor layer and patterning the deposited CNTs and metal electrode such that the source electrode and the drain electrode are spaced apart from each other; and a passivation layer formed on the formed source and drain electrodes, wherein the source and drain electrodes serve to prevent diffusion of a metal of the metal electrode into the formed oxide semiconductor layer, due to the CNTs of the source and drain electrodes.
    Type: Application
    Filed: August 21, 2019
    Publication date: February 27, 2020
    Applicant: UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
    Inventors: Jin Jang, Su Hui Lee
  • Patent number: 9825058
    Abstract: An oxide semiconductor transistor used in a pixel element of a display device and a method of manufacturing the same are disclosed. The oxide semiconductor transistor used in a pixel element of a display device comprises a substrate, a first gate electrode located on the substrate, a source electrode and a drain electrode located on the first gate electrode and a second gate electrode located on the source electrode and the drain electrode. Here, the first gate electrode is electrically connected to the second gate electrode, the same voltage is applied to the first gate electrode and the second gate electrode, and a width of the second gate electrode is shorter than a length between the source electrode and the drain electrode.
    Type: Grant
    Filed: December 10, 2015
    Date of Patent: November 21, 2017
    Assignee: University-Industry Cooperation Group of Kyung Hee University
    Inventors: Jin Jang, Man Ju Seok, Jae Gwang Um, Su Hui Lee
  • Publication number: 20160093643
    Abstract: An oxide semiconductor transistor used in a pixel element of a display device and a method of manufacturing the same are disclosed. The oxide semiconductor transistor used in a pixel element of a display device comprises a substrate, a first gate electrode located on the substrate, a source electrode and a drain electrode located on the first gate electrode and a second gate electrode located on the source electrode and the drain electrode. Here, the first gate electrode is electrically connected to the second gate electrode, the same voltage is applied to the first gate electrode and the second gate electrode, and a width of the second gate electrode is shorter than a length between the source electrode and the drain electrode.
    Type: Application
    Filed: December 10, 2015
    Publication date: March 31, 2016
    Inventors: Jin Jang, Man Ju Seok, Jae Gwang Um, Su Hui Lee