Patents by Inventor Heejean PARK

Heejean PARK 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: 20250107371
    Abstract: A display device in which first and second areas respectively on opposite sides of a display area are defined includes a plurality of first island portions arranged in the first area and spaced apart from each other, a plurality of first bridge portions extending to or connecting the plurality of first island portions adjacent to each other, and spaced apart from each other by a plurality of first openings, a plurality of second island portions arranged in the second area and spaced apart from each other, and a plurality of second bridge portions extending to or connecting the plurality of second island portions adjacent to each other, and spaced apart from each other by a plurality of second openings.
    Type: Application
    Filed: September 23, 2024
    Publication date: March 27, 2025
    Inventors: Hyeongseok KIM, Heejean PARK, Sunhwa LEE, Mukyung JEON
  • Publication number: 20250107300
    Abstract: A display device includes: a plurality of island portions; first bridge portions connecting island portions adjacent to each other in a first direction, the first bridge portions including a first voltage line, a second voltage line, and a third voltage line; and second bridge portions connecting island portions adjacent to each other in a second direction crossing the first direction, the second bridge portions including a fourth voltage line electrically connected to the first voltage line, a fifth voltage line electrically connected to the second voltage line, and a sixth voltage line electrically connected to the third voltage line. The first voltage line and the fourth voltage line are arranged in a first conductive layer. The second voltage line, the fifth voltage line, the third voltage line, and the sixth voltage line are arranged in a second conductive layer on the first conductive layer.
    Type: Application
    Filed: September 12, 2024
    Publication date: March 27, 2025
    Inventors: Hyeongseok KIM, Heejean PARK, Sunhwa LEE, Mukyung JEON
  • Publication number: 20250107238
    Abstract: A display device includes a substrate including an island portion, a first bridge portion extending from the island portion in a first direction, and a second bridge portion extending from the island portion in a second direction crossing the first direction, a first conductive layer disposed on the substrate and including a first voltage line extending from the island portion to the first bridge portion and the second bridge portion, a second conductive layer disposed on the first conductive layer and including signal lines extending from the island portion to the first bridge portion and a data line extending from the island portion to the second bridge portion, and a third conductive layer disposed on the second conductive layer and including a second voltage line and a third voltage line, which extend from the island portion to the first bridge portion and the second bridge portion, respectively.
    Type: Application
    Filed: September 20, 2024
    Publication date: March 27, 2025
    Inventors: Heejean PARK, Hyeongseok KIM, Sunhwa LEE, Mukyung JEON
  • Publication number: 20250107304
    Abstract: A display device including a display area and a non-display area, where the non-display area includes a first area disposed on one side of the display area and a second area between the display area and the first area. The display device includes a first portion arranged in the first area, a plurality of first island portions arranged in the second area and spaced apart from each other, a plurality of second island portions each arranged over the first area and the second area, and a plurality of bridge portions each connecting two adjacent island portions among the plurality of first island portions and the plurality of second island portions, wherein the plurality of bridge portions are spaced apart from each other by a plurality of first openings. The plurality of second island portions are provided integrally with the first portion.
    Type: Application
    Filed: September 20, 2024
    Publication date: March 27, 2025
    Inventors: Sunhwa LEE, Hyeongseok KIM, Heejean PARK, Mukyung JEON
  • Publication number: 20250098458
    Abstract: Provided is a display apparatus. A pixel including a capacitor electrically connected to a first electrode of a light-emitting diode and a sustain voltage line is arranged in an island portion of a display area. A vertical voltage line, which is a portion of the sustain voltage line extending to a bridge portion, includes a first sub-line and a second sub-line spaced apart from each other in a plan view. In the bridge portion, the first sub-line and the second sub-line do not overlap upper data lines.
    Type: Application
    Filed: September 9, 2024
    Publication date: March 20, 2025
    Inventors: Heejean PARK, Hyeongseok KIM, Sunhwa LEE, Mukyung JEON
  • Publication number: 20250095583
    Abstract: A display device includes: a base layer; a plurality of scan lines configured to sequentially receive scan signals, the plurality of scan lines being on the base layer; a plurality of pixels on the base layer and connected to each of the plurality of scan lines; a plurality of sensing control lines configured to simultaneously receive sensing control signals, the sensing control lines being on the base layer; and a plurality of sensors on the base layer and connected to respective ones of the sensing control lines, wherein the scan line and the sensing control line are on the same layer.
    Type: Application
    Filed: December 2, 2024
    Publication date: March 20, 2025
    Inventors: HEEJEAN PARK, HEERIM SONG, YUJIN LEE, CHEOL-GON LEE, MUKYUNG JEON
  • Publication number: 20250029560
    Abstract: A pixel includes a light emitting element, a driving switching element, an initialization voltage terminal, a data initialization switching element set, and an adjustment switching element. The driving switching element may provide a driving current to the light emitting element. The adjustment switching element is electrically connected to the data initialization switching element in series. At least one of the data initialization switching element set and the adjustment switching element may control an electrical connection between the control electrode of the driving switching element and the initialization voltage terminal. A control electrode of the adjustment switching element is electrically connected to an input electrode of the adjustment switching element.
    Type: Application
    Filed: October 4, 2024
    Publication date: January 23, 2025
    Inventors: HEERIM SONG, MUKYUNG JEON, HEEJEAN PARK, YUJIN LEE, CHEOL-GON LEE
  • Patent number: 12178096
    Abstract: A display panel includes a substrate including a first display area, a first side display area, a second side display area, and a corner display area, the corner display area being arranged between the first side display area and the second side display area and surrounding at least a portion of the first display area, a first wiring extending in a first direction in the first display area, a second wiring extending in a second direction in the first display area, a first corner wiring arranged in the corner display area and connected to the first wiring, a second corner wiring arranged in the corner display area and connected to the second wiring, and a pixel circuit arranged in the corner display area, where the first corner wiring and the second corner wiring extend in a first extension direction in the corner display area.
    Type: Grant
    Filed: June 15, 2023
    Date of Patent: December 24, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yujin Lee, Heejean Park, Mukyung Jeon
  • Patent number: 12159580
    Abstract: A display device includes: a base layer; a plurality of scan lines configured to sequentially receive scan signals, the plurality of scan lines being on the base layer; a plurality of pixels on the base layer and connected to each of the plurality of scan lines; a plurality of sensing control lines configured to simultaneously receive sensing control signals, the sensing control lines being on the base layer; and a plurality of sensors on the base layer and connected to respective ones of the sensing control lines, wherein the scan line and the sensing control line are on the same layer.
    Type: Grant
    Filed: January 27, 2023
    Date of Patent: December 3, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Heejean Park, Heerim Song, Yujin Lee, Cheol-Gon Lee, Mukyung Jeon
  • Publication number: 20240395065
    Abstract: Disclosed is a display device including a base layer and a pixel layer that is disposed on the base layer and that includes a plurality of pixels and a plurality of sensors. Each of the plurality of pixels includes a light emitting element and a pixel drive circuit connected to the light emitting element to control driving of the light emitting element. Each of the plurality of sensors includes a light sensing unit including a plurality of light sensing elements, a sensor drive circuit that is connected to at least two light sensing elements and that outputs a sensing signal in response to light, and a routing wire that electrically connects the at least two light sensing elements to each other.
    Type: Application
    Filed: August 1, 2024
    Publication date: November 28, 2024
    Inventors: HEERIM SONG, HEEJEAN PARK, YUJIN LEE, CHEOL-GON LEE, MUKYUNG JEON
  • Patent number: 12142209
    Abstract: A pixel includes a light emitting element, a driving switching element, an initialization voltage terminal, a data initialization switching element set, and an adjustment switching element. The driving switching element may provide a driving current to the light emitting element. The adjustment switching element is electrically connected to the data initialization switching element in series. At least one of the data initialization switching element set and the adjustment switching element may control an electrical connection between the control electrode of the driving switching element and the initialization voltage terminal. A control electrode of the adjustment switching element is electrically connected to an input electrode of the adjustment switching element.
    Type: Grant
    Filed: January 24, 2022
    Date of Patent: November 12, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Heerim Song, Mukyung Jeon, Heejean Park, Yujin Lee, Cheol-Gon Lee
  • Publication number: 20240365585
    Abstract: A display panel includes a substrate including a corner display area including a strip portion between cut portions; and corner pixels in the strip portion and corner pixel circuits which drives the corner pixels, wherein each of the corner pixels includes a first sub-pixel, a second sub-pixel, and a third sub-pixel, and each of the corner pixel circuits includes a first pixel circuit which drives the first sub-pixel, a second pixel circuit which drives the second sub-pixel, and a third pixel circuit which drives the third sub-pixel, and the first pixel circuit, the second pixel circuit, and the third pixel circuit included in an n-th corner pixel circuit in a first direction that is a lengthwise direction of the strip portion are arranged differently from the first pixel circuit, the second pixel circuit, and the third pixel circuit in an (n+1)-th corner pixel circuit.
    Type: Application
    Filed: July 5, 2024
    Publication date: October 31, 2024
    Inventors: Yujin Lee, Sunhwa Lee, Heejean Park, Jaeyong Jang
  • Publication number: 20240363056
    Abstract: A display panel includes: an element layer including a light emitting element; and a circuit layer including: a first transistor connected between a first drive voltage line and the light emitting element and operating according to a potential of a first node; a second transistor connected between a data line and a second node; a third transistor connected between the first transistor and the first node; a first capacitor electrode connected to the first node; a second capacitor electrode connected to the second node and facing the first capacitor electrode to form a first capacitor; a third capacitor electrode facing the second capacitor electrode to form a second capacitor and connected to the first drive voltage line; a first bridge electrode electrically connecting the first capacitor electrode and the third transistor; and a second bridge electrode electrically connecting the second capacitor electrode and the second transistor.
    Type: Application
    Filed: March 29, 2024
    Publication date: October 31, 2024
    Inventors: HEEJEAN PARK, HYEONGSEOK KIM, JUNHYUN PARK, SUNHWA LEE
  • Publication number: 20240365607
    Abstract: A display device includes: a display panel including a light emitting element and a pixel circuit unit connected to the light emitting element. The pixel circuit unit includes: a first transistor connected between a drive voltage line and the light emitting element and which operates depending on a potential of a first node; a second transistor connected between a data line and a second node; a first capacitor electrode connected to the first node; a second capacitor electrode connected to the second node and which faces the first capacitor electrode; a third capacitor electrode connected to the second node; a fourth capacitor electrode, which faces the third capacitor electrode and is connected to the drive voltage line; a bridge electrode, which connects the second capacitor electrode and the third capacitor electrode; and a shielding electrode, which overlaps the bridge electrode in a plan view.
    Type: Application
    Filed: April 3, 2024
    Publication date: October 31, 2024
    Inventors: JUNHYUN PARK, HYEONGSEOK KIM, HEEJEAN PARK, SUNHWA LEE
  • Publication number: 20240321216
    Abstract: A gate driving circuit is provided. Each stage of the gate driving circuit includes a first node controller configured to control a voltage level of a first node connected to a gate of a pull-down transistor, and a second node controller configured to control a voltage level of a second node connected to a gate of a pull-up transistor, wherein the first node controller comprises a first circuit and a second circuit, wherein the first circuit is connected between the first node and an input terminal to which a start signal is input, and configured to transfer the start signal to the first node, and the second circuit is connected between the input terminal and the first node, and may be configured to boost a voltage level of a voltage of the first node.
    Type: Application
    Filed: March 19, 2024
    Publication date: September 26, 2024
    Inventors: Junhyun Park, Hyeongseok Kim, Heejean Park, Sunhwa Lee, Mukyung Jeon
  • Publication number: 20240321183
    Abstract: A display apparatus includes: a plurality of light-emitting diodes in a display area; a gate driver in a non-display area around the display area, the gate driver including a plurality of stages; a conductive line in the non-display area; an insulating layer on the conductive line; and a connection line on the insulating layer and electrically connecting the conductive line with a transistor of a first stage from among the plurality of stages.
    Type: Application
    Filed: March 19, 2024
    Publication date: September 26, 2024
    Inventors: Junhyun Park, Hyeongseok Kim, Heejean Park, Sunhwa Lee, Mukyung Jeon
  • Publication number: 20240324288
    Abstract: A display apparatus includes a first thin-film transistor in a display area, and including a first semiconductor layer and a first gate electrode, the first semiconductor layer including a silicon semiconductor, a second thin-film transistor on the first thin-film transistor, and including a second semiconductor layer and a second gate electrode, the second semiconductor layer including an oxide semiconductor, a third thin-film transistor on the first thin-film transistor, and including a third semiconductor layer and a third gate electrode, the third semiconductor layer including an oxide semiconductor, a bridge metal layer between the first thin-film transistor and the second thin-film transistor and electrically connected to the first semiconductor layer through a first contact hole, and a first conductive pattern layer on the second gate electrode of the second thin-film transistor, and the bridge metal layer is electrically connected to the first conductive pattern layer through a second contact hole.
    Type: Application
    Filed: February 21, 2024
    Publication date: September 26, 2024
    Applicant: Samsung Display Co., Ltd.
    Inventors: Sunhwa Lee, Junhyun Park, Hyeongseok Kim, Heejean Park, Hanbit Kim
  • Patent number: 12087082
    Abstract: Disclosed is a display device including a base layer and a pixel layer that is disposed on the base layer and that includes a plurality of pixels and a plurality of sensors. Each of the plurality of pixels includes a light emitting element and a pixel drive circuit connected to the light emitting element to control driving of the light emitting element. Each of the plurality of sensors includes a light sensing unit including a plurality of light sensing elements, a sensor drive circuit that is connected to at least two light sensing elements and that outputs a sensing signal in response to light, and a routing wire that electrically connects the at least two light sensing elements to each other.
    Type: Grant
    Filed: January 17, 2023
    Date of Patent: September 10, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Heerim Song, Heejean Park, Yujin Lee, Cheol-Gon Lee, Mukyung Jeon
  • Patent number: 12058890
    Abstract: A display panel includes a substrate including a corner display area including a strip portion between cut portions; and corner pixels in the strip portion and corner pixel circuits which drives the corner pixels, wherein each of the corner pixels includes a first sub-pixel, a second sub-pixel, and a third sub-pixel, and each of the corner pixel circuits includes a first pixel circuit which drives the first sub-pixel, a second pixel circuit which drives the second sub-pixel, and a third pixel circuit which drives the third sub-pixel, and the first pixel circuit, the second pixel circuit, and the third pixel circuit included in an n-th corner pixel circuit in a first direction that is a lengthwise direction of the strip portion are arranged differently from the first pixel circuit, the second pixel circuit, and the third pixel circuit in an (n+1)-th corner pixel circuit.
    Type: Grant
    Filed: December 9, 2021
    Date of Patent: August 6, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yujin Lee, Sunhwa Lee, Heejean Park, Jaeyong Jang
  • Publication number: 20240249685
    Abstract: A display device includes: a pixel driving circuit configured to drive the light emitting elements of pixels; and sensors including a light sensing element and a sensor driving circuit connected with the light sensing element and configured to output a sensing signal corresponding to a light, the sensor driving circuit including: a reset transistor including a first electrode configured to receive a reset signal, a second electrode connected with a first sensing node, and a third electrode configured to receive a reset control signal; an amplification transistor including a first electrode configured to receive a sensing driving voltage, a second electrode connected with a second sensing node, and a third electrode connected with the first sensing node; and an output transistor including a first electrode connected with the second sensing node, a second electrode connected with a sensing line, and a third electrode configured to receive an output control signal.
    Type: Application
    Filed: April 5, 2024
    Publication date: July 25, 2024
    Inventors: HEERIM SONG, HEEJEAN PARK, YUJIN LEE, CHEOL-GON LEE, MUKYUNG JEON