Patents by Inventor Junwon Choi

Junwon Choi 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: 12626650
    Abstract: A pixel includes a first transistor including a first and second gates, a first capacitor connected between a first node and a third node, a second capacitor connected between a fourth node and the third node, a second transistor receiving a first scan signal and connected between a data line and the first node, a third transistor receiving a second scan signal and connected between a reference voltage line and the first node, a fourth transistor receiving a third scan signal and connected between an initialization line and the third node, a fifth transistor receiving an emission signal and connected between a first power line and the second node, a sixth transistor receiving the second scan signal and connected between the fourth node and the second node, and a light emitting element connected between the third node and a second power line.
    Type: Grant
    Filed: December 11, 2024
    Date of Patent: May 12, 2026
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jongsik Shim, Soon-Gi Kwon, Donghyun Kim, Junyoung Min, Jun-Yong An, Chanyoung Yang, Seunghee Lee, Junwon Choi
  • Publication number: 20260112308
    Abstract: A display panel includes a plurality of pixel circuits disposed in a display area, and a scan driver disposed in a peripheral area adjacent to the display area and including a first driving circuit and a second driving circuit. The first driving circuit includes a plurality of first stages that outputs first scan signals to the plurality of pixel circuits, and the second driving circuit includes a plurality of second stages that outputs second scan signals to the plurality of pixel circuits. The plurality of first stages are disposed in odd-numbered rows and the plurality of second stages are disposed in even-numbered rows.
    Type: Application
    Filed: July 16, 2025
    Publication date: April 23, 2026
    Applicant: Samsung Display Co., Ltd.
    Inventors: Hyojoon Song, Junyoung Min, Sungeun Kim, Junwon Choi
  • Publication number: 20260101652
    Abstract: A display apparatus includes a substrate including a display area and a peripheral area outside the display area, a power supply line arranged in the peripheral area, a gate driving circuit arranged between the power supply line and the display area and including a plurality of stages arranged in a direction, and a signal line arranged in the peripheral area, electrically connected to a first stage from among the plurality of stages of the gate driving circuit, and configured to transmit a start signal, wherein the signal line overlaps the power supply line in a plan view and is arranged between the substrate and the power supply line.
    Type: Application
    Filed: December 11, 2025
    Publication date: April 9, 2026
    Inventors: Junyoung Min, Soongi Kwon, Minwoo Byun, Junwon Choi, Junyong An
  • Patent number: 12579928
    Abstract: A display device includes: a display panel; a first light emitting driving circuit to provide first emission signals; and a second light emitting driving circuit to provide second emission signals. The display panel includes: a plurality of pixels, each including a first light emitting element and a second light emitting element; and a light control pattern overlapping with the second light emitting element of each of the plurality of pixels in a plan view. Each of the plurality of pixels is to emit light through the first light emitting element when a corresponding first emission signal is at an active level, and emit light through the second light emitting element when a corresponding second emission signal is at the active level. A part of the first emission signals and the second emission signals remains at an inactive level during at least one frame based on an operating mode.
    Type: Grant
    Filed: May 23, 2024
    Date of Patent: March 17, 2026
    Assignee: Samsung Display Co., Ltd.
    Inventor: Junwon Choi
  • Publication number: 20260051283
    Abstract: A display device includes a first lower active pattern, a first lower gate electrode disposed on the first lower active pattern and forming a storage capacitor together with the lower active pattern, a second lower gate electrode disposed on the first lower gate electrode and forming a first compensation capacitor together with the first lower gate electrode, an upper active pattern disposed on the second lower gate electrode and electrically connected to the first lower gate electrode, and an upper gate electrode disposed on the upper active pattern and electrically connected to the first lower active pattern.
    Type: Application
    Filed: April 16, 2025
    Publication date: February 19, 2026
    Inventors: JUNYOUNG MIN, Hyojoon Song, JUNWON CHOI
  • Publication number: 20260020456
    Abstract: A display device includes a plurality of pixels. A power line is connected to the plurality of pixels. The power line includes a plurality of horizontal power lines extending in a first direction and arranged in a second direction crossing the first direction and a plurality of vertical power lines extending in the second direction and arranged in the first direction. The plurality of vertical power lines cross the plurality of horizontal power lines when viewed from above a plane. The plurality of horizontal power lines is alternately connected to two adjacent vertical power lines of the plurality of vertical power lines.
    Type: Application
    Filed: March 26, 2025
    Publication date: January 15, 2026
    Inventors: JUNYOUNG MIN, MINJOO KIM, Hyojoon SONG, JUNWON CHOI
  • Patent number: 12527187
    Abstract: A display apparatus includes a substrate including a display area and a peripheral area outside the display area, a power supply line arranged in the peripheral area, a gate driving circuit arranged between the power supply line and the display area and including a plurality of stages arranged in a direction, and a signal line arranged in the peripheral area, electrically connected to a first stage from among the plurality of stages of the gate driving circuit, and configured to transmit a start signal, wherein the signal line overlaps the power supply line in a plan view and is arranged between the substrate and the power supply line.
    Type: Grant
    Filed: December 7, 2023
    Date of Patent: January 13, 2026
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Junyoung Min, Soongi Kwon, Minwoo Byun, Junwon Choi, Junyong An
  • Publication number: 20250380569
    Abstract: A display device includes a base layer, a pixel circuit disposed on the base layer and comprising a plurality of pixel transistors, a gate insulating layer covering the first and second oxide semiconductor patterns, and a light emitting element electrically connected to the pixel circuit. The pixel transistors include a first pixel transistor including a first oxide semiconductor pattern and a second pixel transistor including a second oxide semiconductor pattern. An open area is defined through the gate insulating layer to correspond to a first source and a first drain of the first oxide semiconductor pattern.
    Type: Application
    Filed: March 4, 2025
    Publication date: December 11, 2025
    Inventors: Seungho SONG, SEMYUNG KWON, YEONG-GYU KIM, INJUN BAE, JUNWON CHOI, YOUNG-IN HWANG
  • Patent number: 12495676
    Abstract: A display apparatus is disclosed that includes a substrate, an additional transistor, a first wiring, a first insulating layer, and a second wiring. The additional transistor is located on the substrate and includes an additional semiconductor layer and an additional gate electrode. The first wiring is integrally formed with the additional gate electrode and extends in a first direction. The first insulating layer is located on the first wiring. The second wiring is located on the first insulating layer and extends in a second direction intersecting the first direction. The second wiring is connected to a source region and a drain region of the additional semiconductor layer.
    Type: Grant
    Filed: August 23, 2022
    Date of Patent: December 9, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Junwon Choi, Jaewon Kim, Junyoung Min
  • Publication number: 20250366332
    Abstract: A display device is disclosed that includes a first active layer, a gate pattern, a second active layer, and a lower conductive layer. The first active layer is disposed on a substrate. The gate pattern is disposed on the first active layer. The second active layer is disposed on the gate pattern and includes a body portion electrically connected to the gate pattern. The lower conductive layer is disposed between the substrate and the first active layer and includes a first region. At least a part of the first region overlaps an entirety of the body portion of the second active layer.
    Type: Application
    Filed: August 5, 2025
    Publication date: November 27, 2025
    Inventor: JUNWON CHOI
  • Publication number: 20250329277
    Abstract: A display device includes first to fifth data lines, a sub-pixel array including first sub-pixels, second sub-pixels, and third sub-pixels, and a lighting test circuit. The sub-pixel array includes a first sub-pixel column disposed adjacent to the first data line and in which first sub-pixels connected to the first data line and third sub-pixels connected to the third data line are alternately arranged, and a third sub-pixel column disposed adjacent to the third data line and in which third sub-pixels connected to the third data line and first sub-pixels connected to the fifth data line are alternately arranged. The lighting test circuit includes a first transistor which outputs a first test voltage to the first data line, and a third transistor which outputs a third test voltage to the third data line.
    Type: Application
    Filed: April 8, 2025
    Publication date: October 23, 2025
    Inventors: Junyoung MIN, Hwayoung SONG, Hyojoon SONG, Jun-Yong AN, Chanyoung YANG, Junwon CHOI
  • Publication number: 20250331377
    Abstract: Provided is a display panel including a substrate including a display area, an opening area within the display area, and an intermediate area between the opening area and the display area, a light-emitting diode in the display area, and including a sub-pixel electrode, an opposite electrode above the sub-pixel electrode, and an intermediate layer between the sub-pixel electrode and the opposite electrode, an organic pattern layer in the intermediate area above the substrate, and defining a first groove and a second groove, a conductive pattern layer in the second groove, and including a tip having an end protruding toward a center of the first groove in plan view, and a line electrically connected to the conductive pattern layer, and passing through the display area.
    Type: Application
    Filed: November 22, 2024
    Publication date: October 23, 2025
    Inventor: Junwon Choi
  • Patent number: 12446416
    Abstract: A display apparatus includes first initialization voltage lines extending in a first direction, second initialization voltage lines extending in the first direction, first initialization connection lines extending in a second direction intersecting the first direction and electrically connecting the first initialization voltage lines to each other, second initialization connection lines extending in the second direction and electrically connecting the second initialization voltage lines to each other, and pixels connected to the first initialization voltage lines, the second initialization voltage lines, the first initialization connection lines and the second initialization connection lines.
    Type: Grant
    Filed: February 26, 2021
    Date of Patent: October 14, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Junwon Choi, Jaesic Lee, Jaewon Kim, Junyoung Min, Jinhee Jang
  • Patent number: 12396337
    Abstract: A display device is disclosed that includes a first active layer, a gate pattern, a second active layer, and a lower conductive layer. The first active layer is disposed on a substrate. The gate pattern is disposed on the first active layer. The second active layer is disposed on the gate pattern and includes a body portion electrically connected to the gate pattern. The lower conductive layer is disposed between the substrate and the first active layer and includes a first region. At least a part of the first region overlaps an entirety of the body portion of the second active layer.
    Type: Grant
    Filed: April 13, 2022
    Date of Patent: August 19, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventor: Junwon Choi
  • Publication number: 20250232711
    Abstract: A pixel includes a first transistor including a first and second gates, a first capacitor connected between a first node and a third node, a second capacitor connected between a fourth node and the third node, a second transistor receiving a first scan signal and connected between a data line and the first node, a third transistor receiving a second scan signal and connected between a reference voltage line and the first node, a fourth transistor receiving a third scan signal and connected between an initialization line and the third node, a fifth transistor receiving an emission signal and connected between a first power line and the second node, a sixth transistor receiving the second scan signal and connected between the fourth node and the second node, and a light emitting element connected between the third node and a second power line.
    Type: Application
    Filed: December 11, 2024
    Publication date: July 17, 2025
    Inventors: JONGSIK SHIM, SOON-GI KWON, DONGHYUN KIM, JUNYOUNG MIN, JUN-YONG AN, CHANYOUNG YANG, SEUNGHEE LEE, JUNWON CHOI
  • Patent number: 12324310
    Abstract: A display device includes a scan line extending in a first direction, a data line and a driving voltage line extending in a second direction crossing the first direction, a switching thin film transistor (“TFT”) connected to the scan line and the data line, a driving TFT connected to the switching TFT and including a driving semiconductor layer and a driving gate electrode, a storage capacitor connected to the driving TFT and including first and second storage capacitor plates, a node connection line between the data line and the driving voltage line and connected to the driving gate electrode, and a shielding portion between the data line and the node connection line.
    Type: Grant
    Filed: December 8, 2023
    Date of Patent: June 3, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Junwon Choi, Yunkyeong In, Wonmi Hwang, Junyong An
  • Publication number: 20250160163
    Abstract: Disclosed is a display device which includes a first substrate including a fan-out wiring part, a second substrate facing the first substrate, and a sealant coupling the first and second substrates. The fan-out wiring part includes first and second fan-out lines, first and second connecting lines. The first fan-out line is disposed in a non-sealing area and includes a first gate wiring layer and a third gate wiring layer. The second fan-out line is disposed in the non-sealing area and includes a second gate wiring layer having a lower sheet resistance. The first connecting line is disposed in a sealing area and connected to the first fan-out line. The second connecting line is disposed in the sealing area and connected to the second fan-out line. Each of the first and second connecting lines includes one of the first and third gate wiring layers.
    Type: Application
    Filed: November 8, 2024
    Publication date: May 15, 2025
    Applicant: Samsung Display Co., Ltd.
    Inventors: JUNWON CHOI, HYUN-CHOL BANG
  • Publication number: 20250103111
    Abstract: A display apparatus includes: a substrate having a transmission area, a display area, and a non-display area, wherein the display area surrounds the transmission area, and the non-display area is between the transmission area and the display area; a first wire on the substrate and including a first-1 wire and a first-2 wire extending in a first direction and being spaced apart from each other by the transmission area; a first connecting wire on a same layer as that of the first wire and connecting the first-1 wire to the first-2 wire; and a second wire extending in the first direction and including a second-1 portion and a second-2 portion, wherein the second-1 portion at least partially overlaps the first connecting wire and is arranged on a different layer from that of the first wire, and the second-2 portion is on the same layer as that of the first wire.
    Type: Application
    Filed: December 6, 2024
    Publication date: March 27, 2025
    Inventors: Junwon CHOI, Seungwoo SUNG, Hyungjun PARK, Hyunchol BANG, Changsoo PYON
  • Publication number: 20250107370
    Abstract: A display apparatus includes a first gate line and a second gate line extending in a first direction, a data line extending in a second direction intersecting the first direction, a first transistor including a first gate electrode overlapping a first semiconductor layer, a second transistor electrically connected to the first transistor, the second transistor including a second gate electrode overlapping a second semiconductor layer, the second semiconductor layer is electrically connected to the data line, a third transistor electrically connected to the first transistor and the second transistor, the third transistor including a third semiconductor layer overlapping the second gate line, and a bridge electrode electrically connecting the first gate line to the second gate electrode.
    Type: Application
    Filed: September 23, 2024
    Publication date: March 27, 2025
    Applicant: Samsung Display Co., Ltd.
    Inventor: Junwon Choi
  • Publication number: 20250095550
    Abstract: A display device includes: a display panel; a first light emitting driving circuit to provide first emission signals; and a second light emitting driving circuit to provide second emission signals. The display panel includes: a plurality of pixels, each including a first light emitting element and a second light emitting element; and a light control pattern overlapping with the second light emitting element of each of the plurality of pixels in a plan view. Each of the plurality of pixels is to emit light through the first light emitting element when a corresponding first emission signal is at an active level, and emit light through the second light emitting element when a corresponding second emission signal is at the active level. A part of the first emission signals and the second emission signals remains at an inactive level during at least one frame based on an operating mode.
    Type: Application
    Filed: May 23, 2024
    Publication date: March 20, 2025
    Inventor: JUNWON CHOI