Patents by Inventor Kwang-Chul Jung

Kwang-Chul Jung 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: 20250248255
    Abstract: A display device includes: a substrate; a plurality of transistors disposed on the substrate; an initialization voltage line disposed on the substrate and including a first initialization voltage line that extends in a first direction, and a second initialization voltage line that extends in a second direction; and a driving voltage line disposed on the substrate and extending in the second direction, wherein each of the first initialization voltage line and the driving voltage line is connected to at least one of the plurality of transistors, and the second initialization voltage line and the driving voltage line overlap each other.
    Type: Application
    Filed: April 18, 2025
    Publication date: July 31, 2025
    Inventors: Mi Na KIM, Seul Bee LEE, Kwang-Chul JUNG, Yong Jun JO
  • Patent number: 12324329
    Abstract: A display device may include a pixel circuit in a display area including a rounded corner portion, a scan driving circuit in a peripheral area surrounding the display area, and configured to provide a scan signal to the pixel circuit, a fan-out line between the pixel circuit and the scan driving circuit in the peripheral area adjacent to the corner portion, and configured to provide a pixel data signal to the pixel circuit, and a repair circuit between the scan driving circuit and the fan-out line in the peripheral area adjacent to the corner portion.
    Type: Grant
    Filed: March 4, 2022
    Date of Patent: June 3, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yongjun Jo, Kwang-Chul Jung, Mina Kim, Seulbee Lee
  • Patent number: 12302720
    Abstract: A display device includes: a substrate; a plurality of transistors disposed on the substrate; an initialization voltage line disposed on the substrate and including a first initialization voltage line that extends in a first direction, and a second initialization voltage line that extends in a second direction; and a driving voltage line disposed on the substrate and extending in the second direction, wherein each of the first initialization voltage line and the driving voltage line is connected to at least one of the plurality of transistors, and the second initialization voltage line and the driving voltage line overlap each other.
    Type: Grant
    Filed: March 29, 2023
    Date of Patent: May 13, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Mi Na Kim, Seul Bee Lee, Kwang-Chul Jung, Yong Jun Jo
  • Patent number: 12289967
    Abstract: A display device may include a pixel circuit in a display area including a rounded corner portion, a scan driving circuit in a peripheral area surrounding the display area, and configured to provide a scan signal to the pixel circuit, a fan-out line between the pixel circuit and the scan driving circuit in the peripheral area adjacent to the corner portion, and configured to provide a pixel data signal to the pixel circuit, and a repair circuit between the scan driving circuit and the fan-out line in the peripheral area adjacent to the corner portion.
    Type: Grant
    Filed: March 4, 2022
    Date of Patent: April 29, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yongjun Jo, Kwang-Chul Jung, Mina Kim, Seulbee Lee
  • Publication number: 20250120268
    Abstract: A display device includes a substrate, a circuit layer, and an element layer. The circuit layer includes: light emitting pixel drivers; data lines; demux circuits outputting the data signal of the data lines based on a data mux signal supplied from a display driving circuit; and data transmission lines electrically connected between the display driving circuit and the demux circuits, and transmitting data mux signals of the demux circuits, respectively. The data transmission lines include: a first data transmission line electrically connected to a first demux circuit adjacent to an edge of the substrate in a first direction; and a second data transmission line electrically connected to a second demux circuit spaced further apart from the edge of the substrate than the first demux circuit in the first direction. The second data transmission line is electrically connected to a path compensation capacitor in the sub-region.
    Type: Application
    Filed: May 14, 2024
    Publication date: April 10, 2025
    Inventors: Tae Hyoung NO, Joon Dong KIM, Min Cheol LEE, Kwang Chul JUNG, Yong Jun JO
  • Publication number: 20250056993
    Abstract: A display device includes a substrate including sub-pixel circuit areas that are arranged in m rows and n columns, where m and n are positive integers, first gate lines extending in a row direction, data lines extending in a column direction, initialization power lines extending in the row direction, including first power lines disposed in sub-pixel circuit areas of odd rows and receiving a first initialization voltage and second power lines disposed in sub-pixel circuit areas of even rows and receiving a second initialization voltage, and transmission lines extending in the column direction, including first transmission lines disposed in sub-pixel circuit areas of odd columns and receiving the first initialization voltage from the first power lines and second transmission lines disposed in sub-pixel circuit areas of even columns and receiving the second initialization voltage from the second power lines.
    Type: Application
    Filed: October 21, 2024
    Publication date: February 13, 2025
    Inventors: JUN-YONG AN, MIN JEONG KIM, HYUNGJUN PARK, NUREE UM, KWANG-CHUL JUNG
  • Patent number: 12127458
    Abstract: A display device includes a substrate including sub-pixel circuit areas that are arranged in m rows and n columns, where m and n are positive integers, first gate lines extending in a row direction, data lines extending in a column direction, initialization power lines extending in the row direction, including first power lines disposed in sub-pixel circuit areas of odd rows and receiving a first initialization voltage and second power lines disposed in sub-pixel circuit areas of even rows and receiving a second initialization voltage, and transmission lines extending in the column direction, including first transmission lines disposed in sub-pixel circuit areas of odd columns and receiving the first initialization voltage from the first power lines and second transmission lines disposed in sub-pixel circuit areas of even columns and receiving the second initialization voltage from the second power lines.
    Type: Grant
    Filed: February 28, 2022
    Date of Patent: October 22, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jun-Yong An, Min Jeong Kim, Hyungjun Park, Nuree Um, Kwang-Chul Jung
  • Publication number: 20240147793
    Abstract: A display device includes: a substrate including a display area including a plurality of pixels and a non-display area around the display area; data lines extending from the display area; a multiplexer in the non-display area and connected to the data lines; a display driving circuit in the non-display area and on one side of the multiplexer; and fan-out lines connecting the multiplexer and the display driving circuit, wherein the fan-out lines include first fan-out lines connected to the multiplexer and second fan-out lines connected to the first fan-out lines and the display driving circuit, and the first fan-out lines and the second fan-out lines are on different layers.
    Type: Application
    Filed: October 3, 2023
    Publication date: May 2, 2024
    Inventors: Yang Hee KIM, Kwang Chul JUNG, Yong Jun JO, Sun Baek HONG
  • Patent number: 11778875
    Abstract: A display device includes a base substrate including: a display region including a pixel, and a pad region defining an end surface of the base substrate which is furthest from the display region and exposed outside the display panel; an insulating layer in the display region and the pad region; and in the pad region: a signal pad electrically connected to the pixel and to a dummy pad; the insulating layer covering the signal pad and the dummy pad and defining an end surface of the insulating layer which is furthest from the display region and exposed outside the display panel; and a first opening in the insulating layer which exposes the signal pad outside the insulating layer and outside the display panel. In the pad region, the end surfaces of the base substrate and the insulating layer together define an inclined edge of the display panel.
    Type: Grant
    Filed: February 23, 2021
    Date of Patent: October 3, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kwang-Chul Jung, Youngrae Kim, Dong-Yoon So, Kyungmin Park, Samho Ihm, Yongjun Jo
  • Publication number: 20230247876
    Abstract: A display device includes: a substrate; a plurality of transistors disposed on the substrate; an initialization voltage line disposed on the substrate and including a first initialization voltage line that extends in a first direction, and a second initialization voltage line that extends in a second direction; and a driving voltage line disposed on the substrate and extending in the second direction, wherein each of the first initialization voltage line and the driving voltage line is connected to at least one of the plurality of transistors, and the second initialization voltage line and the driving voltage line overlap each other.
    Type: Application
    Filed: March 29, 2023
    Publication date: August 3, 2023
    Inventors: Mi Na KIM, Seul Bee LEE, Kwang-Chul JUNG, Yong Jun JO
  • Patent number: 11621314
    Abstract: A display device includes: a substrate; a plurality of transistors disposed on the substrate; an initialization voltage line disposed on the substrate and including a first initialization voltage line that extends in a first direction, and a second initialization voltage line that extends in a second direction; and a driving voltage line disposed on the substrate and extending in the second direction, wherein each of the first initialization voltage line and the driving voltage line is connected to at least one of the plurality of transistors, and the second initialization voltage line and the driving voltage line overlap each other.
    Type: Grant
    Filed: April 1, 2021
    Date of Patent: April 4, 2023
    Inventors: Mi Na Kim, Seul Bee Lee, Kwang-Chul Jung, Yong Jun Jo
  • Patent number: 11482163
    Abstract: A display device includes scan lines disposed in a first direction; data lines disposed in a second direction substantially perpendicular to the first direction; and unit pixel regions adjacent to the scan lines and the data lines, each unit pixel region including sub-pixels. A portion of an opening region of at least one of the sub-pixels overlaps a unit pixel region adjacent to a unit pixel region corresponding to the at least one of the sub-pixels, and a side of the opening region of the at least one of the sub-pixels extends in a third direction inclined with respect to each of the first direction and the second direction.
    Type: Grant
    Filed: August 23, 2021
    Date of Patent: October 25, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jin Koo Chung, Dong Soo Kim, Taek Ju Jung, Seong Min Kim, Kyung Soo Jang, Kwang Chul Jung, Kyung Hyun Choi
  • Publication number: 20220336569
    Abstract: A display device includes a substrate including sub-pixel circuit areas that are arranged in m rows and n columns, where m and n are positive integers, first gate lines extending in a row direction, data lines extending in a column direction, initialization power lines extending in the row direction, including first power lines disposed in sub-pixel circuit areas of odd rows and receiving a first initialization voltage and second power lines disposed in sub-pixel circuit areas of even rows and receiving a second initialization voltage, and transmission lines extending in the column direction, including first transmission lines disposed in sub-pixel circuit areas of odd columns and receiving the first initialization voltage from the first power lines and second transmission lines disposed in sub-pixel circuit areas of even columns and receiving the second initialization voltage from the second power lines.
    Type: Application
    Filed: February 28, 2022
    Publication date: October 20, 2022
    Inventors: JUN-YONG AN, MIN JEONG KIM, HYUNGJUN PARK, NUREE UM, KWANG-CHUL JUNG
  • Publication number: 20220293695
    Abstract: A display device may include a pixel circuit in a display area including a rounded corner portion, a scan driving circuit in a peripheral area surrounding the display area, and configured to provide a scan signal to the pixel circuit, a fan-out line between the pixel circuit and the scan driving circuit in the peripheral area adjacent to the corner portion, and configured to provide a pixel data signal to the pixel circuit, and a repair circuit between the scan driving circuit and the fan-out line in the peripheral area adjacent to the corner portion.
    Type: Application
    Filed: March 4, 2022
    Publication date: September 15, 2022
    Inventors: YONGJUN JO, KWANG-CHUL JUNG, MINA KIM, SEULBEE LEE
  • Patent number: 11444131
    Abstract: A display apparatus includes a display area extending in a first direction and a second direction, first to fourth sub-pixels, and a spacer. The first sub-pixel emits a first color light, and includes first and second sides extending in a third direction inclined at a predetermined angle with the first direction, and third and fourth sides extending in a fourth direction perpendicular to the third direction. The second sub-pixel emits a second color light, and is disposed adjacent to the second side of the first sub-pixel in the fourth direction. The third sub-pixel emits a third color light, and is disposed adjacent to the fourth side of the first sub-pixel in the third direction. The fourth sub-pixel emits the first color light, and is disposed adjacent to the second and third sub-pixels. The spacer is disposed between the first and second sub-pixels and between the third and fourth sub-pixels.
    Type: Grant
    Filed: July 17, 2020
    Date of Patent: September 13, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Mina Kim, Kwang-Chul Jung, Wonkyu Kwak, Dongsoo Kim, Jinkoo Chung, Yongjun Jo, Changsoo Pyon
  • Publication number: 20220069049
    Abstract: A display device includes: a substrate; a plurality of transistors disposed on the substrate; an initialization voltage line disposed on the substrate and including a first initialization voltage line that extends in a first direction, and a second initialization voltage line that extends in a second direction; and a driving voltage line disposed on the substrate and extending in the second direction, wherein each of the first initialization voltage line and the driving voltage line is connected to at least one of the plurality of transistors, and the second initialization voltage line and the driving voltage line overlap each other.
    Type: Application
    Filed: April 1, 2021
    Publication date: March 3, 2022
    Inventors: Mi Na KIM, Seul Bee LEE, Kwang-Chul JUNG, Yong Jun JO
  • Publication number: 20210383747
    Abstract: A display device includes scan lines disposed in a first direction; data lines disposed in a second direction substantially perpendicular to the first direction; and unit pixel regions adjacent to the scan lines and the data lines, each unit pixel region including sub-pixels. A portion of an opening region of at least one of the sub-pixels overlaps a unit pixel region adjacent to a unit pixel region corresponding to the at least one of the sub-pixels, and a side of the opening region of the at least one of the sub-pixels extends in a third direction inclined with respect to each of the first direction and the second direction.
    Type: Application
    Filed: August 23, 2021
    Publication date: December 9, 2021
    Applicant: Samsung Display Co., LTD.
    Inventors: Jin Koo CHUNG, Dong Soo KIM, Taek Ju JUNG, Seong Min KIM, Kyung Soo JANG, Kwang Chul JUNG, Kyung Hyun CHOI
  • Publication number: 20210313411
    Abstract: A display device includes a base substrate including: a display region including a pixel, and a pad region defining an end surface of the base substrate which is furthest from the display region and exposed outside the display panel; an insulating layer in the display region and the pad region; and in the pad region: a signal pad electrically connected to the pixel and to a dummy pad; the insulating layer covering the signal pad and the dummy pad and defining an end surface of the insulating layer which is furthest from the display region and exposed outside the display panel; and a first opening in the insulating layer which exposes the signal pad outside the insulating layer and outside the display panel. In the pad region, the end surfaces of the base substrate and the insulating layer together define an inclined edge of the display panel.
    Type: Application
    Filed: February 23, 2021
    Publication date: October 7, 2021
    Inventors: KWANG-CHUL JUNG, YOUNGRAE KIM, DONG-YOON SO, KYUNGMIN PARK, SAMHO IHM, YONGJUN JO
  • Publication number: 20210286456
    Abstract: A display device includes: a first substrate including a display area and a non-display area; a second substrate facing the first substrate; a sealing member disposed in the non-display area and coupling the first substrate to the second substrate; a sensing contact area disposed at an inner side of the sealing member; a sensing signal line disposed in the sensing contact area; a sensing contact pattern disposed in the sensing contact area and electrically connected to the sensing signal line; a control signal line disposed between the first substrate and the sensing signal line; and a shielding pattern disposed between the control signal line and the sensing signal line, the shielding pattern overlapping the control signal line or the sensing signal line.
    Type: Application
    Filed: January 13, 2021
    Publication date: September 16, 2021
    Inventors: Yong Jun JO, Kwang Chul JUNG, Dong Soo KIM, Mi Na KIM
  • Publication number: 20210241677
    Abstract: A display device includes scan lines disposed in a first direction; data lines disposed in a second direction substantially perpendicular to the first direction; and unit pixel regions adjacent to the scan lines and the data lines, each unit pixel region including sub-pixels. A portion of an opening region of at least one of the sub-pixels overlaps a unit pixel region adjacent to a unit pixel region corresponding to the at least one of the sub-pixels, and a side of the opening region of the at least one of the sub-pixels extends in a third direction inclined with respect to each of the first direction and the second direction.
    Type: Application
    Filed: September 1, 2020
    Publication date: August 5, 2021
    Applicant: Samsung Display Co., LTD.
    Inventors: Jin Koo CHUNG, Dong Soo KIM, Taek Ju JUNG, Seong Min KIM, Kyung Soo JANG, Kwang Chul JUNG, Kyung Hyun CHOI