Patents by Inventor SoJung LEE

SoJung 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: 20250116018
    Abstract: The present invention relates to a silver nanocluster catalyst for electrochemically treated carbon dioxide conversion, water reduction reactions, or syngas synthesis involving a mixture of hydrogen and carbon monoxide; a gas diffusion electrode comprising the same; a zero-gap reactor comprising the same; and a method for converting carbon dioxide using the same, which exhibits excellent conversion efficiency and high selectivity.
    Type: Application
    Filed: September 26, 2024
    Publication date: April 10, 2025
    Applicant: UIF (UNIVERSITY INDUSTRY FOUNDATION), YONSEI UNIVERSITY
    Inventors: Dongil LEE, Hoeun SEONG, Sojung LEE, Sangmyeong HAN, Kiyoung CHANG, Minyoung PARK
  • Patent number: 12243499
    Abstract: The present disclosure provides a gate driving circuit and a display device. An nth stage circuit among a plurality of stage circuits included in a gate driving circuit according to embodiments of the disclosure may include a scan output buffer circuit configured to output a scan signal according to voltages of a Q node and a Qb node, a control circuit including a plurality of transistors to control the voltages of the Q node and the Qb node, the plurality of transistors including a first Q node discharge transistor turned on or off by the voltage of the Qb node to control connection between the Q node and a low-potential voltage node, and a body bias circuit configured to supply a body bias voltage to a body of a first Q node discharge transistor.
    Type: Grant
    Filed: November 1, 2023
    Date of Patent: March 4, 2025
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Youngjun Choi, Sojung Lee
  • Patent number: 12125439
    Abstract: A display device, a data driving circuit and a display driving method are discussed. The display device can include a display panel in which a plurality of subpixel circuits including a light emitting element, a driving transistor, and a sensing transistor are disposed. The display device further can include a gate driving circuit configured to supply a plurality of scan signals to the display panel through a plurality of gate lines, a data driving circuit configured to supply a plurality of data voltages to the display panel through a plurality of data lines and supply a constant current to the plurality of subpixel circuits during a resistance sensing period, and a timing controller configured to control the gate driving circuit and the data driving circuit, and supply compensation image data to the display panel by using the resistance of the sensing transistor detected in the resistance sensing period.
    Type: Grant
    Filed: October 20, 2022
    Date of Patent: October 22, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Hyemi Oh, Sangwook Lee, Sojung Lee
  • Publication number: 20240212594
    Abstract: The present disclosure relates to a display device including scan lines, data lines, control signal lines, and subpixels. A first subpixel among the subpixels includes a first light emitting element including an anode electrode and a cathode electrode; a first driving circuit connected to a first scan line of the plurality of scan lines and a first data line of the plurality of data lines and configured to drive the first light emitting element; a first light emitting control transistor configured to be turned on or off according to a first light emitting control signal supplied to its gate node and control a connection between the first light emitting element and the first driving circuit; and a first light emitting control circuit configured to output a first light emitting control signal to the gate node of the first light emitting control transistor.
    Type: Application
    Filed: December 1, 2023
    Publication date: June 27, 2024
    Inventors: Youngjun CHOI, SoJung LEE, YoungIn JANG
  • Publication number: 20240203375
    Abstract: The present disclosure provides a gate driving circuit and a display device. An nth stage circuit among a plurality of stage circuits included in a gate driving circuit according to embodiments of the disclosure may include a scan output buffer circuit configured to output a scan signal according to voltages of a Q node and a Qb node, a control circuit including a plurality of transistors to control the voltages of the Q node and the Qb node, the plurality of transistors including a first Q node discharge transistor turned on or off by the voltage of the Qb node to control connection between the Q node and a low-potential voltage node, and a body bias circuit configured to supply a body bias voltage to a body of a first Q node discharge transistor.
    Type: Application
    Filed: November 1, 2023
    Publication date: June 20, 2024
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Youngjun CHOI, SoJung LEE
  • Publication number: 20230340680
    Abstract: Provided are a silver nanocluster catalyst for carbon dioxide conversion, a gas diffusion electrode including the same, a zero-gap reactor including the same, and a method of converting carbon dioxide showing an excellent conversion rate and high selectivity using the same.
    Type: Application
    Filed: April 7, 2023
    Publication date: October 26, 2023
    Inventors: Dongil LEE, Hoeun SEONG, Sojung LEE
  • Patent number: 11782567
    Abstract: Embodiments of the present disclosure are related to a touch display device, as a touch sensor connecting pattern for a connection between touch sensors or a connection between a touch sensor and a touch routing line is disposed by using a same material with a voltage line disposed on a subpixel. Thus, an electrode structure for a touch sensing can be implemented while reducing a manufacturing process. Furthermore, as the voltage line is disposed to overlap at least a part of the touch sensor and the touch routing line, a performance of the touch sensing can be improved by reducing an influence that a parasitic capacitance by a driving of a light-emitting element affects the touch sensing.
    Type: Grant
    Filed: November 1, 2022
    Date of Patent: October 10, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: SoJung Lee, Youngjun Choi, HyeMi Oh
  • Publication number: 20230206839
    Abstract: A display device, a data driving circuit and a display driving method are discussed. The display device can include a display panel in which a plurality of subpixel circuits including a light emitting element, a driving transistor, and a sensing transistor are disposed. The display device further can include a gate driving circuit configured to supply a plurality of scan signals to the display panel through a plurality of gate lines, a data driving circuit configured to supply a plurality of data voltages to the display panel through a plurality of data lines and supply a constant current to the plurality of subpixel circuits during a resistance sensing period, and a timing controller configured to control the gate driving circuit and the data driving circuit, and supply compensation image data to the display panel by using the resistance of the sensing transistor detected in the resistance sensing period.
    Type: Application
    Filed: October 20, 2022
    Publication date: June 29, 2023
    Applicant: LG Display Co., Ltd.
    Inventors: HyeMi OH, SangWook LEE, SoJung LEE
  • Publication number: 20230185413
    Abstract: Embodiments of the present disclosure are related to a touch display device, as a touch sensor connecting pattern for a connection between touch sensors or a connection between a touch sensor and a touch routing line is disposed by using a same material with a voltage line disposed on a subpixel. Thus, an electrode structure for a touch sensing can be implemented while reducing a manufacturing process. Furthermore, as the voltage line is disposed to overlap at least a part of the touch sensor and the touch routing line, a performance of the touch sensing can be improved by reducing an influence that a parasitic capacitance by a driving of a light-emitting element affects the touch sensing.
    Type: Application
    Filed: November 1, 2022
    Publication date: June 15, 2023
    Inventors: SoJung Lee, Youngjun Choi, HyeMi Oh
  • Publication number: 20230178019
    Abstract: Embodiments of the present disclosure are related to a display device, a turn-on state, a turn-off state of a driving transistor can be easily controlled by a control of a control voltage applied to a control gate electrode opposed to a driving gate electrode of the driving transistor and a non-light-emitting driving can be performed in a display driving. Furthermore, as the non-light-emitting driving is performed by the control voltage applied to the control gate electrode of the driving transistor, the non-light-emitting driving can be performed independently from a period in which a scan signal is applied, the non-light-emitting driving can be performed without affecting a display driving and a video response time of the display device can be improved.
    Type: Application
    Filed: November 1, 2022
    Publication date: June 8, 2023
    Inventors: Youngjun Choi, HyeMi Oh, SoJung Lee
  • Publication number: 20230089997
    Abstract: A light emitting display device can include a substrate including an emission area and a non-emission area, a thin film transistor on the substrate, a first overcoating layer on the thin film transistor, an organic light emitting diode on the first overcoating layer and connected to the thin film transistor, an encapsulation unit on the organic light emitting diode, and a touch unit on the encapsulation unit. The touch unit can include an open area defined by a plurality of touch electrodes. The organic light emitting diode can include a first electrode, an emission layer and a second electrode. Further, a portion of the first electrode and a portion of a side mirror-shaped dummy first electrode separated from the first electrode can be disposed in the open area defined by the plurality of touch electrodes.
    Type: Application
    Filed: November 30, 2022
    Publication date: March 23, 2023
    Applicant: LG Display Co., LTD.
    Inventors: SoJung LEE, JongSung KIM, Seungkyeom KIM, Sumin LEE
  • Patent number: 11545648
    Abstract: According to an aspect of the present disclosure, a light emitting display device includes a substrate defined by a plurality of sub-pixels and a first overcoating layer disposed on the substrate, a connection electrode and a sacrificial layer disposed on the first overcoating layer, a first electrode disposed on the connection electrode, a second overcoating layer disposed on the sacrificial layer and including an opening that exposes a portion of the first electrode, a dummy first electrode disposed on a top surface of the second overcoating layer and a side surface of the opening and separated from the first electrode, a bank layer covering the dummy first electrode and a portion of the first electrode, and an emission layer and a second electrode disposed on the first electrode and the bank layer.
    Type: Grant
    Filed: August 17, 2020
    Date of Patent: January 3, 2023
    Assignee: LG DISPLAY CO., LTD.
    Inventors: SoJung Lee, JongSung Kim, Seungkyeom Kim, Sumin Lee
  • Patent number: 11189814
    Abstract: Provided are an organic light-emitting display apparatus and a method of manufacturing the same. An organic light-emitting display apparatus includes: a substrate including an active area and a pad area, an anode electrode in the active area, an organic emission layer on the anode electrode, a cathode electrode on the organic emission layer, an auxiliary electrode connected to the cathode electrode, a signal pad in the pad area, and a first pad electrode connected to the signal pad, the first pad electrode covering a top of the signal pad, the first pad electrode being configured to prevent the top of the signal pad from being corroded, wherein the auxiliary electrode includes a first auxiliary electrode and a second auxiliary electrode connected to the first auxiliary electrode through a contact hole, and wherein the first pad electrode includes a same material as the first auxiliary electrode.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: November 30, 2021
    Assignee: LG Display Co., Ltd.
    Inventors: SeJune Kim, Joonsuk Lee, SoJung Lee, Jin-Hee Jang, Jonghyeok Im, JaeSung Lee
  • Publication number: 20210119183
    Abstract: According to an aspect of the present disclosure, a light emitting display device includes a substrate defined by a plurality of sub-pixels and a first overcoating layer disposed on the substrate, a connection electrode and a sacrificial layer disposed on the first overcoating layer, a first electrode disposed on the connection electrode, a second overcoating layer disposed on the sacrificial layer and including an opening that exposes a portion of the first electrode, a dummy first electrode disposed on a top surface of the second overcoating layer and a side surface of the opening and separated from the first electrode, a bank layer covering the dummy first electrode and a portion of the first electrode, and an emission layer and a second electrode disposed on the first electrode and the bank layer.
    Type: Application
    Filed: August 17, 2020
    Publication date: April 22, 2021
    Applicant: LG Display Co., LTD.
    Inventors: SoJung Lee, JongSung Kim, Seungkyeom Kim, Sumin Lee
  • Patent number: 10777766
    Abstract: An organic light-emitting diode (OLED) display device and a method of fabricating the same can reduce resistance of a cathode by forming an auxiliary electrode. Also, such OLED display device and method can prevent damage on a pad electrode due to an etchant during patterning of an anode by applying a protective structure to the pad electrode of a pad area and by including the pad electrode exposed from a plurality of pad electrode layers.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: September 15, 2020
    Assignee: LG Display Co., Ltd.
    Inventors: JongHyeok Im, SeJune Kim, JoonSuk Lee, SoJung Lee, JaeSung Lee
  • Patent number: 10446627
    Abstract: A method of manufacturing an organic light emitting display device can include providing a source electrode, a drain electrode and a signal pad on a substrate; providing a passivation layer on the source electrode, the drain electrode and the signal pad, providing a planarization layer on the passivation layer; providing a anode electrode connected with the source electrode or drain electrode, and providing an auxiliary electrode spaced apart from the anode electrode; providing a contact hole for exposing the signal pad by removing a predetermined portion of the passivation layer; providing a bank on one side and the other side of the anode electrode and one side and the other side of the auxiliary electrode; providing an organic emitting layer on the anode electrode; and providing a cathode electrode connected with the auxiliary electrode and provided on the organic emitting layer, in which the signal pad includes a lower signal pad, a central signal pad and an upper signal pad, and the central signal pad is
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: October 15, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Jonghyeok Im, SeJune Kim, Joonsuk Lee, SoJung Lee, Jin-Hee Jang, JaeSung Lee
  • Publication number: 20190252634
    Abstract: Provided are an organic light-emitting display apparatus and a method of manufacturing the same. An organic light-emitting display apparatus includes: a substrate including an active area and a pad area, an anode electrode in the active area, an organic emission layer on the anode electrode, a cathode electrode on the organic emission layer, an auxiliary electrode connected to the cathode electrode, a signal pad in the pad area, and a first pad electrode connected to the signal pad, the first pad electrode covering a top of the signal pad, the first pad electrode being configured to prevent the top of the signal pad from being corroded, wherein the auxiliary electrode includes a first auxiliary electrode and a second auxiliary electrode connected to the first auxiliary electrode through a contact hole, and wherein the first pad electrode includes a same material as the first auxiliary electrode.
    Type: Application
    Filed: March 28, 2019
    Publication date: August 15, 2019
    Applicant: LG Display Co., Ltd.
    Inventors: SeJune KIM, Joonsuk Lee, SoJung Lee, Jin-Hee Jang, Jonghyeok Im, JaeSung Lee
  • Patent number: 10276838
    Abstract: Provided are an organic light-emitting display apparatus and a method of manufacturing the same. An organic light-emitting display apparatus includes: a substrate including an active area and a pad area, an anode electrode in the active area, an organic emission layer on the anode electrode, a cathode electrode on the organic emission layer, an auxiliary electrode connected to the cathode electrode, a signal pad in the pad area, and a first pad electrode connected to the signal pad, the first pad electrode covering a top of the signal pad, the first pad electrode being configured to prevent the top of the signal pad from being corroded, wherein the auxiliary electrode includes a first auxiliary electrode and a second auxiliary electrode connected to the first auxiliary electrode through a contact hole, and wherein the first pad electrode includes a same material as the first auxiliary electrode.
    Type: Grant
    Filed: February 6, 2018
    Date of Patent: April 30, 2019
    Assignee: LG Display Co., Ltd.
    Inventors: SeJune Kim, Joonsuk Lee, SoJung Lee, Jin-Hee Jang, Jonghyeok Im, JaeSung Lee
  • Publication number: 20190097161
    Abstract: An organic light-emitting diode (OLED) display device and a method of fabricating the same can reduce resistance of a cathode by forming an auxiliary electrode. Also, such OLED display device and method can prevent damage on a pad electrode due to an etchant during patterning of an anode by applying a protective structure to the pad electrode of a pad area and by including the pad electrode exposed from a plurality of pad electrode layers.
    Type: Application
    Filed: November 30, 2018
    Publication date: March 28, 2019
    Applicant: LG Display Co., Ltd.
    Inventors: JongHyeok IM, SeJune KIM, JoonSuk LEE, SoJung LEE, JaeSung LEE
  • Patent number: 10186568
    Abstract: An organic light emitting display device includes a thin film transistor (TFT) including a gate electrode and a source electrode. An anode electrode is disposed on the TFT, and a cathode electrode disposed on an organic emission layer is connected to an auxiliary electrode which is disposed on a same layer on which the anode electrode is disposed. A signal pad disposed in a pad area of a substrate is disposed on a same layer on which the gate electrode is disposed in an active area of the substrate. A pad electrode disposed on the signal pad is connected to the signal pad through a contact hole.
    Type: Grant
    Filed: December 30, 2015
    Date of Patent: January 22, 2019
    Assignee: LG DISPLAY CO., LTD.
    Inventors: SeJune Kim, Joonsuk Lee, SoJung Lee, Jin-Hee Jang, Jonghyeok Im, JaeSung Lee