Patents by Inventor Yunjung OH

Yunjung OH 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: 20250127001
    Abstract: Provided are a pixel in which pixel circuits of a plurality of rows of the same column share a capacitor, and a display apparatus including the same.
    Type: Application
    Filed: December 20, 2024
    Publication date: April 17, 2025
    Inventors: Hanbit Kim, Hyena Kwak, Jiyeong Shin, Yunjung Oh, Dokyeong Lee, Sanggun Choi
  • Patent number: 12253320
    Abstract: A cannon includes: a barrel; a breech ring connected to the rear of the barrel; a breechblock connected to be movable with respect to the breech ring between a closed position and an open position; an ignition device mounted to be partially movable with respect to the breechblock and configured to ignite a propelling charge; and a controller configured to transfer an electrical firing signal, wherein the ignition device includes: a firing assembly moving forward and backward as the breechblock moves; a laser diode primer connected to the front of the firing assembly and configured to receive the electrical firing signal to ignite the propelling charge; and a firing pin connected to be movable forward and backward with respect to the firing assembly and configured to transfer the electrical firing signal to the laser diode primer while in contact with a rear end of the laser diode primer.
    Type: Grant
    Filed: November 8, 2024
    Date of Patent: March 18, 2025
    Assignee: AGENCY FOR DEFENSE DEVELOPMENT
    Inventors: Sangtae Ahn, Yongseon Lee, Yunjung Oh
  • Patent number: 12253318
    Abstract: Disclosed is a cannon including: a barrel having a chamber in which a shell and a propelling charge are mounted; a breech ring connected to the rear of the barrel, and having a shell inlet communicating with the chamber; a recoil buffer disposed on an outer circumferential surface of the barrel, and guiding recoiling and returning motions of the barrel; a breechblock connected to the breech ring, and moving relative to the breech ring between a closed position closing the shell inlet and an open position opening the shell inlet; a laser ignition device including a laser portion disposed in the breechblock and emitting a laser to ignite the propelling charge, and a breech window covering the laser portion and allowing the laser to be transmitted into the chamber; and a breech window cleaning device cleaning the breech window.
    Type: Grant
    Filed: November 8, 2024
    Date of Patent: March 18, 2025
    Assignee: AGENCY FOR DEFENSE DEVELOPMENT
    Inventors: Sangtae Ahn, Yongseon Lee, Yunjung Oh
  • Patent number: 12213361
    Abstract: Provided are a pixel in which pixel circuits of a plurality of rows of the same column share a capacitor, and a display apparatus including the same.
    Type: Grant
    Filed: September 28, 2023
    Date of Patent: January 28, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hanbit Kim, Hyena Kwak, Jiyeong Shin, Yunjung Oh, Dokyeong Lee, Sanggun Choi
  • Patent number: 12112705
    Abstract: A pixel includes an organic light-emitting diode, a driving transistor, a first dual gate transistor, a first capacitor, and a compensation transistor. The organic light-emitting diode includes first and second terminals. The driving transistor generates the driving current and includes a first terminal to which a first power supply voltage is applied, a second terminal connected to the first terminal of the organic light-emitting diode, and a gate terminal. The first dual gate transistor is connected between the gate terminal of the driving transistor and the second terminal of the driving transistor and includes first and second sub-transistors. The first capacitor includes a first electrode to which the first power supply voltage is applied, and a second electrode connected to a first node that connects the first and second sub-transistors to each other. The compensation transistor includes a terminal connected between the second electrode and the first node.
    Type: Grant
    Filed: October 3, 2023
    Date of Patent: October 8, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hanbit Kim, Taewook Kang, Doo-Na Kim, Sangsub Kim, Yunjung Oh, Dokyeong Lee, Jaehwan Chu
  • Patent number: 12062334
    Abstract: A pixel may include a light emitting diode which includes an anode and a cathode, a first transistor which includes a first source region, a first drain region electrically connected to the anode, a first channel region, and a first gate electrode, a first sub-transistor which includes a first sub-source region connected to the first drain region, a first sub-drain region, a first sub-channel region, and a first sub-gate electrode, a second sub-transistor which includes a second sub-source region connected to the first sub-drain region, a second sub-drain region connected to the first gate electrode, a second sub-channel region, and a second sub-gate electrode, a storage line which overlaps the first sub-drain region and the second sub-source region, and a first hold pattern which overlaps the first sub-drain region, the second sub-source region, and the storage line, and connected to the first sub-drain region and the second sub-source region.
    Type: Grant
    Filed: April 27, 2023
    Date of Patent: August 13, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hanbit Kim, Sungwook Kim, Chanyeob Seol, Yunjung Oh, Jeong-Soo Lee, Jina Lee, Seongbaik Chu
  • Publication number: 20240147790
    Abstract: Provided are a pixel in which pixel circuits of a plurality of rows of the same column share a capacitor, and a display apparatus including the same.
    Type: Application
    Filed: September 28, 2023
    Publication date: May 2, 2024
    Inventors: Hanbit Kim, Hyena Kwak, Jiyeong Shin, Yunjung Oh, Dokyeong Lee, Sanggun Choi
  • Publication number: 20240078973
    Abstract: A pixel may include a light emitting diode which includes an anode and a cathode, a first transistor which includes a first source region, a first drain region electrically connected to the anode, a first channel region, and a first gate electrode, a first sub-transistor which includes a first sub-source region connected to the first drain region, a first sub-drain region, a first sub-channel region, and a first sub-gate electrode, a second sub-transistor which includes a second sub-source region connected to the first sub-drain region, a second sub-drain region connected to the first gate electrode, a second sub-channel region, and a second sub-gate electrode, a storage line which overlaps the first sub-drain region and the second sub-source region, and a first hold pattern which overlaps the first sub-drain region, the second sub-source region, and the storage line, and connected to the first sub-drain region and the second sub-source region.
    Type: Application
    Filed: April 27, 2023
    Publication date: March 7, 2024
    Inventors: HANBIT KIM, SUNGWOOK KIM, CHANYEOB SEOL, YUNJUNG OH, JEONG-SOO LEE, JINA LEE, SEONGBAIK CHU
  • Publication number: 20240029655
    Abstract: A pixel includes an organic light-emitting diode, a driving transistor, a first dual gate transistor, a first capacitor, and a compensation transistor. The organic light-emitting diode includes first and second terminals. The driving transistor generates the driving current and includes a first terminal to which a first power supply voltage is applied, a second terminal connected to the first terminal of the organic light-emitting diode, and a gate terminal. The first dual gate transistor is connected between the gate terminal of the driving transistor and the second terminal of the driving transistor and includes first and second sub-transistors. The first capacitor includes a first electrode to which the first power supply voltage is applied, and a second electrode connected to a first node that connects the first and second sub-transistors to each other. The compensation transistor includes a terminal connected between the second electrode and the first node.
    Type: Application
    Filed: October 3, 2023
    Publication date: January 25, 2024
    Inventors: HANBIT KIM, TAEWOOK KANG, DOO-NA KIM, SANGSUB KIM, YUNJUNG OH, DOKYEONG LEE, JAEHWAN CHU
  • Patent number: 11810511
    Abstract: A pixel includes an organic light-emitting diode, a driving transistor, a first dual gate transistor, a first capacitor, and a compensation transistor. The organic light-emitting diode includes first and second terminals. The driving transistor generates the driving current and includes a first terminal to which a first power supply voltage is applied, a second terminal connected to the first terminal of the organic light-emitting diode, and a gate terminal. The first dual gate transistor is connected between the gate terminal of the driving transistor and the second terminal of the driving transistor and includes first and second sub-transistors. The first capacitor includes a first electrode to which the first power supply voltage is applied, and a second electrode connected to a first node that connects the first and second sub-transistors to each other. The compensation transistor includes a terminal connected between the second electrode and the first node.
    Type: Grant
    Filed: May 11, 2022
    Date of Patent: November 7, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hanbit Kim, Taewook Kang, Doo-Na Kim, Sangsub Kim, Yunjung Oh, Dokyeong Lee, Jaehwan Chu
  • Publication number: 20230067920
    Abstract: A pixel includes an organic light-emitting diode, a driving transistor, a first dual gate transistor, a first capacitor, and a compensation transistor. The organic light-emitting diode includes first and second terminals. The driving transistor generates the driving current and includes a first terminal to which a first power supply voltage is applied, a second terminal connected to the first terminal of the organic light-emitting diode, and a gate terminal. The first dual gate transistor is connected between the gate terminal of the driving transistor and the second terminal of the driving transistor and includes first and second sub-transistors. The first capacitor includes a first electrode to which the first power supply voltage is applied, and a second electrode connected to a first node that connects the first and second sub-transistors to each other. The compensation transistor includes a terminal connected between the second electrode and the first node.
    Type: Application
    Filed: May 11, 2022
    Publication date: March 2, 2023
    Inventors: HANBIT KIM, TAEWOOK KANG, DOO-NA KIM, SANGSUB KIM, YUNJUNG OH, DOKYEONG LEE, JAEHWAN CHU
  • Patent number: 10823521
    Abstract: An apparatus for designing a rifling rate to increase a lifespan of a gun barrel includes: a node selection module selecting and distributing the predetermined number of node points according to preset constraints between preselected starting and end rifling angles; a sorting module sorting distributed node points; and a profile generation module calculating a rifling rate curve using sorted node points, and generating a rifling rate profile using the rifling rate curve.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: November 3, 2020
    Assignee: AGENCY FOR DEFENSE DEVELOPMENT
    Inventors: Seil An, Yunjung Oh, Ki-Up Cha
  • Publication number: 20200149835
    Abstract: An apparatus for designing a rifling rate to increase a lifespan of a gun barrel includes: a node selection module selecting and distributing the predetermined number of node points according to preset constraints between preselected starting and end rifling angles; a sorting module sorting distributed node points; and a profile generation module calculating a rifling rate curve using sorted node points, and generating a rifling rate profile using the rifling rate curve.
    Type: Application
    Filed: May 28, 2019
    Publication date: May 14, 2020
    Inventors: Seil AN, Yunjung OH, Ki-Up CHA