Patents by Inventor AHYEON LEE

AHYEON 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).

  • ORGANIC LIGHT-EMITTING DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20230292553
    Abstract: An organic light-emitting display device includes a driving transistor configured to control current to an organic light-emitting diode from a power voltage line, a compensation transistor configured to diode-connect the driving transistor in response to a voltage applied to a compensation gate electrode of the driving transistor, and a gate insulating layer interposed between a driving active region of the driving transistor and the driving gate electrode, and between a compensation active region of the compensation transistor and the compensation gate electrode. A dielectric constant in a first portion of the gate insulating layer between the driving active region and the driving gate electrode is greater than a dielectric constant in a second portion of the gate insulating layer between the compensation active region and the compensation gate electrode.
    Type: Application
    Filed: May 22, 2023
    Publication date: September 14, 2023
    Inventors: SANGJIN PARK, YOUNGDAE KIM, JEONGSEON KIM, SANGJIN LEE, AHYEON LEE
  • Organic light-emitting display device having a gate insulating layer with controlled dielectric constants and method of manufacturing the same
    Patent number: 11690251
    Abstract: An organic light-emitting display device includes a driving transistor configured to control current to an organic light-emitting diode from a power voltage line, a compensation transistor configured to diode-connect the driving transistor in response to a voltage applied to a compensation gate electrode of the driving transistor, and a gate insulating layer interposed between a driving active region of the driving transistor and the driving gate electrode, and between a compensation active region of the compensation transistor and the compensation gate electrode. A dielectric constant in a first portion of the gate insulating layer between the driving active region and the driving gate electrode is greater than a dielectric constant in a second portion of the gate insulating layer between the compensation active region and the compensation gate electrode.
    Type: Grant
    Filed: December 4, 2020
    Date of Patent: June 27, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sangjin Park, Youngdae Kim, Jeongseon Kim, Sangjin Lee, Ahyeon Lee
  • ORGANIC LIGHT-EMITTING DISPLAY DEVICE AND METHOD OF MANUFACTURING THE SAME
    Publication number: 20210343816
    Abstract: An organic light-emitting display device includes a driving transistor configured to control current to an organic light-emitting diode from a power voltage line, a compensation transistor configured to diode-connect the driving transistor in response to a voltage applied to a compensation gate electrode of the driving transistor, and a gate insulating layer interposed between a driving active region of the driving transistor and the driving gate electrode, and between a compensation active region of the compensation transistor and the compensation gate electrode. A dielectric constant in a first portion of the gate insulating layer between the driving active region and the driving gate electrode is greater than a dielectric constant in a second portion of the gate insulating layer between the compensation active region and the compensation gate electrode.
    Type: Application
    Filed: December 4, 2020
    Publication date: November 4, 2021
    Inventors: SANGJIN PARK, YOUNGDAE KIM, JEONGSEON KIM, SANGJIN LEE, AHYEON LEE