Patents by Inventor Jin Her

Jin Her 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: 20260073872
    Abstract: An electroluminescent display apparatus includes a plurality of pixels that each include a driving element including a first gate electrode connected to a first gate node, a second gate electrode facing the first gate electrode, a source electrode connected to a source node, and a drain electrode, a light emitting device connected between the source node and an input terminal for a low level driving voltage to emit light during an emission period, and an internal compensation circuit including a first capacitor connected to the first gate node and the source node. The internal compensation circuit samples a threshold voltage of the driving element during a sampling period that precedes the emission period. A sampling reinforcement voltage for increasing a sampling current flowing in the driving element is applied to the second gate electrode of the driving element during the sampling period.
    Type: Application
    Filed: November 18, 2025
    Publication date: March 12, 2026
    Inventors: Jin Her, Hoon Jeong, Chul Sang Shin
  • Patent number: 12499836
    Abstract: An electroluminescent display apparatus includes a plurality of pixels that each include a driving element including a first gate electrode connected to a first gate node, a second gate electrode facing the first gate electrode, a source electrode connected to a source node, and a drain electrode, a light emitting device connected between the source node and an input terminal for a low level driving voltage to emit light during an emission period, and an internal compensation circuit including a first capacitor connected to the first gate node and the source node. The internal compensation circuit samples a threshold voltage of the driving element during a sampling period that precedes the emission period. A sampling reinforcement voltage for increasing a sampling current flowing in the driving element is applied to the second gate electrode of the driving element during the sampling period.
    Type: Grant
    Filed: October 18, 2024
    Date of Patent: December 16, 2025
    Assignee: LG Display Co., Ltd.
    Inventors: Jin Her, Hoon Jeong, Chul Sang Shin
  • Publication number: 20250046250
    Abstract: An electroluminescent display apparatus includes a plurality of pixels that each include a driving element including a first gate electrode connected to a first gate node, a second gate electrode facing the first gate electrode, a source electrode connected to a source node, and a drain electrode, a light emitting device connected between the source node and an input terminal for a low level driving voltage to emit light during an emission period, and an internal compensation circuit including a first capacitor connected to the first gate node and the source node. The internal compensation circuit samples a threshold voltage of the driving element during a sampling period that precedes the emission period. A sampling reinforcement voltage for increasing a sampling current flowing in the driving element is applied to the second gate electrode of the driving element during the sampling period.
    Type: Application
    Filed: October 18, 2024
    Publication date: February 6, 2025
    Inventors: Jin Her, Hoon Jeong, Chul Sang Shin
  • Patent number: 12148377
    Abstract: An electroluminescent display apparatus includes a plurality of pixels that each include a driving element including a first gate electrode connected to a first gate node, a second gate electrode facing the first gate electrode, a source electrode connected to a source node, and a drain electrode, a light emitting device connected between the source node and an input terminal for a low level driving voltage to emit light during an emission period, and an internal compensation circuit including a first capacitor connected to the first gate node and the source node. The internal compensation circuit samples a threshold voltage of the driving element during a sampling period that precedes the emission period. A sampling reinforcement voltage for increasing a sampling current flowing in the driving element is applied to the second gate electrode of the driving element during the sampling period.
    Type: Grant
    Filed: October 14, 2022
    Date of Patent: November 19, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Jin Her, Hoon Jeong, Chul Sang Shin
  • Publication number: 20230197003
    Abstract: An electroluminescent display apparatus includes a plurality of pixels that each include a driving element including a first gate electrode connected to a first gate node, a second gate electrode facing the first gate electrode, a source electrode connected to a source node, and a drain electrode, a light emitting device connected between the source node and an input terminal for a low level driving voltage to emit light during an emission period, and an internal compensation circuit including a first capacitor connected to the first gate node and the source node. The internal compensation circuit samples a threshold voltage of the driving element during a sampling period that precedes the emission period. A sampling reinforcement voltage for increasing a sampling current flowing in the driving element is applied to the second gate electrode of the driving element during the sampling period.
    Type: Application
    Filed: October 14, 2022
    Publication date: June 22, 2023
    Inventors: Jin Her, Hoon Jeong, Chul Sang Shin
  • Patent number: 11385515
    Abstract: Embodiments of the disclosure are related to display devices, a planarization layer disposed on a thin film transistor in a display panel is removed to form an opening in the planarization layer, and a top gate electrode is disposed in the opening of the planarization layer, thus a driving performance of the thin film transistor is enhanced while reducing a size of the thin film transistor disposed in the display panel. Furthermore, the top gate electrode is implemented using an electrode layer located on an upper layer of the planarization layer, the thin film transistor including double gate electrodes is implemented easily without an additional process.
    Type: Grant
    Filed: November 23, 2020
    Date of Patent: July 12, 2022
    Assignee: LG Display Co., Ltd.
    Inventors: Hoon Jeong, Chulsang Shin, Jin Her
  • Publication number: 20210173244
    Abstract: Embodiments of the disclosure are related to display devices, a planarization layer disposed on a thin film transistor in a display panel is removed to form an opening in the planarization layer, and a top gate electrode is disposed in the opening of the planarization layer, thus a driving performance of the thin film transistor is enhanced while reducing a size of the thin film transistor disposed in the display panel. Furthermore, the top gate electrode is implemented using an electrode layer located on an upper layer of the planarization layer, the thin film transistor including double gate electrodes is implemented easily without an additional process.
    Type: Application
    Filed: November 23, 2020
    Publication date: June 10, 2021
    Inventors: Hoon JEONG, ChulSang SHIN, Jin HER
  • Patent number: 8314917
    Abstract: In a gate in panel (GIP) type liquid crystal display (LCD) device in which a gate driver is directly mounted within a thin film transistor array substrate, a column spacer structure of a GIP circuit part has the same diamond structure as a gap spacer structure of an active region, and a dummy color filter pattern is formed at the GIP circuit part to have the same step as the active region where the cap spacers are positioned to thus prevent a cell gap deficiency between the GIP circuit part and the active region.
    Type: Grant
    Filed: June 25, 2009
    Date of Patent: November 20, 2012
    Assignee: LG Display Co., Ltd.
    Inventors: Seung-Yeon Hwang, Jin Her
  • Publication number: 20100128207
    Abstract: In a gate in panel (GIP) type liquid crystal display (LCD) device in which a gate driver is directly mounted within a thin film transistor array substrate, a column spacer structure of a GIP circuit part has the same diamond structure as a gap spacer structure of an active region, and a dummy color filter pattern is formed at the GIP circuit part to have the same step as the active region where the cap spacers are positioned to thus prevent a cell gap deficiency between the GIP circuit part and the active region.
    Type: Application
    Filed: June 25, 2009
    Publication date: May 27, 2010
    Inventors: Seung-Yeon Hwang, Jin Her