Patents by Inventor Kyeonghwa KIM

Kyeonghwa KIM 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: 20240099062
    Abstract: A display device includes a circular display area and a non-display area surrounding the circular display area. The display device may further include a load matcher disposed adjacent to an edge of the circular display area in the circular display area, a pixel disposed in the circular display area, spaced apart from the non-display area by the load matcher, and connected to the load matcher, and a repair pixel disposed adjacent to the edge of the circular display area in the non-display area, and connected to the pixel.
    Type: Application
    Filed: November 27, 2023
    Publication date: March 21, 2024
    Inventors: SUMI JANG, MINCHAE KWAK, KYEONGHWA KIM, MIHAE KIM, KYONGHWAN OH, SEUNGHAN JO, JAE-HO CHOI
  • Patent number: 11832478
    Abstract: A display device includes a circular display area and a non-display area surrounding the circular display area. The display device may further include a load matcher disposed adjacent to an edge of the circular display area in the circular display area, a pixel disposed in the circular display area, spaced apart from the non-display area by the load matcher, and connected to the load matcher, and a repair pixel disposed adjacent to the edge of the circular display area in the non-display area, and connected to the pixel.
    Type: Grant
    Filed: May 27, 2021
    Date of Patent: November 28, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sumi Jang, Minchae Kwak, Kyeonghwa Kim, Mihae Kim, Kyonghwan Oh, Seunghan Jo, Jae-Ho Choi
  • Patent number: 11653533
    Abstract: A display device includes: a substrate including a display area and a peripheral area outside the display area, the display area including a first display area and a second display area; a first fan-out portion in a portion of the peripheral area outside the first display area; a second fan-out portion outside the first fan-out portion; a first power supply line in the peripheral area corresponding to one side of the display area and overlapping at least a portion of the first fan-out portion; and a second power supply line in the peripheral area outside the display area and overlapping at least a portion of the second fan-out portion.
    Type: Grant
    Filed: June 30, 2020
    Date of Patent: May 16, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Byungsun Kim, Wonkyu Kwak, Kyeonghwa Kim, Jaewon Kim, Hyungjun Park, Seungyeon Cho, Junwon Choi
  • Publication number: 20230126345
    Abstract: A display device may include a substrate including a circular display area and a non-display area, a plurality of pixels including a first pixel and a second pixel disposed on the display area of the substrate, a first sub-demux circuit connected to the first pixel and disposed on the non-display area, a second sub-demux circuit connected to the second pixel and disposed on the non-display area, a first connection line connected to the first sub-demux circuit and the second sub-demux circuit and disposed on the non-display area to transfer first and second data input signals to the first and second sub-demux circuits, and a plurality of gate stages connected to the pixels and disposed on the non-display area to transfer gate signals to the pixels. Some of the gate stages are disposed between the first sub-demux circuit and the second sub-demux circuit.
    Type: Application
    Filed: December 26, 2022
    Publication date: April 27, 2023
    Inventors: MINCHAE KWAK, KYEONGHWA KIM, MIHAE KIM, KYONGHWAN OH, SUMI JANG, SEUNGHAN JO, JAE-HO CHOI
  • Patent number: 11538420
    Abstract: A display device may include a substrate including a circular display area and a non-display area, a plurality of pixels including a first pixel and a second pixel disposed on the display area of the substrate, a first sub-demux circuit connected to the first pixel and disposed on the non-display area, a second sub-demux circuit connected to the second pixel and disposed on the non-display area, a first connection line connected to the first sub-demux circuit and the second sub-demux circuit and disposed on the non-display area to transfer first and second data input signals to the first and second sub-demux circuits, and a plurality of gate stages connected to the pixels and disposed on the non-display area to transfer gate signals to the pixels. Some of the gate stages are disposed between the first sub-demux circuit and the second sub-demux circuit.
    Type: Grant
    Filed: June 22, 2021
    Date of Patent: December 27, 2022
    Inventors: Minchae Kwak, Kyeonghwa Kim, Mihae Kim, Kyonghwan Oh, Sumi Jang, Seunghan Jo, Jae-Ho Choi
  • Publication number: 20220367601
    Abstract: A display device includes a display area having a curved outer edge, a non-display area extended along the curved outer edge of the display area, the non-display area including a driver, a first non-display area including a first fan-out line having a first resistivity value; and a second non-display area extended along the curved outer edge of the display area and in a direction away from the first non-display area, the second non-display area including a first connection line which connects the driver to the first fan-out line, the first connection line having a second resistivity value less than the first resistivity value of the first fan-out line.
    Type: Application
    Filed: March 8, 2022
    Publication date: November 17, 2022
    Inventors: MINCHAE KWAK, BYUNGSUN KIM, KYEONGHWA KIM, MIHAE KIM, KYONGHWAN OH, SUMI JANG, SEUNGHAN JO, JAE-HO CHOI
  • Publication number: 20220285477
    Abstract: A display panel having at least one hole inside a display area includes: a substrate; a plurality of display elements arranged in a plane around the at least one hole; and a plurality of signal lines extending in a first direction, wherein the at least one hole includes a first hole having a first width in a second direction and having two sides with asymmetric shapes with respect to a first central line passing through a center of the first width, wherein each of first and second neighboring signal lines extends in the first direction, the first signal line detours around a first side of the first hole, and the second signal line detours around a second side of the first hole opposite to the first side, and wherein the first and second signal lines are asymmetric with respect to a first virtual line therebetween.
    Type: Application
    Filed: May 23, 2022
    Publication date: September 8, 2022
    Inventors: Nuree UM, Hyungjun PARK, Junyong AN, Kyeonghwa KIM
  • Publication number: 20220208933
    Abstract: A display device includes a substrate on which a display area including a plurality of pixels and a non-display area surrounding the display area are defined, a first voltage line disposed on the substrate in the non-display area, where the first voltage line provides a first voltage to the pixels, a second voltage line disposed on the substrate in the non-display area, where the second voltage line provides a second voltage to the pixels, and a first demux circuit area and a second demux circuit area disposed on the substrate in the non-display area, where the first demux circuit area and the second demux circuit area transmit data signals to the pixels. The first voltage line passes an area between the first demux circuit area and the second demux circuit area.
    Type: Application
    Filed: November 23, 2021
    Publication date: June 30, 2022
    Inventors: JAE-HO CHOI, MINCHAE KWAK, KYEONGHWA KIM, MIHAE KIM, KYONGHWAN OH, SUMI JANG, SEUNGHAN JO
  • Patent number: 11342403
    Abstract: A display panel having at least one hole inside a display area includes: a substrate; a plurality of display elements arranged in a plane around the at least one hole; and a plurality of signal lines extending in a first direction, wherein the at least one hole includes a first hole having a first width in a second direction and having two sides with asymmetric shapes with respect to a first central line passing through a center of the first width, wherein each of first and second neighboring signal lines extends in the first direction, the first signal line detours around a first side of the first hole, and the second signal line detours around a second side of the first hole opposite to the first side, and wherein the first and second signal lines are asymmetric with respect to a first virtual line therebetween.
    Type: Grant
    Filed: May 1, 2020
    Date of Patent: May 24, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Nuree Um, Hyungjun Park, Junyong An, Kyeonghwa Kim
  • Patent number: 11296180
    Abstract: A display apparatus includes a substrate including a transmitting area, a display area surrounding the transmitting area, a first non-display area disposed between the transmitting area and the display area, and a second non-display area surrounding the display area. A plurality of pixels is arranged in the display area. A set of 2n connection wirings (where n is a positive integer) is disposed in the first non-display area and each of the 2n connection wirings extends along at least a part of an edge of the transmitting area. Each of a plurality of voltage wirings extends in a first direction and is connected to at least some of pixels disposed in a common row from among the plurality of pixels. Each of the plurality of voltage wirings is connected to one of the 2n connection wirings.
    Type: Grant
    Filed: April 12, 2021
    Date of Patent: April 5, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kyeonghwa Kim, Nuree Um, Kyunghoon Kim, Mihae Kim, Jaedu Noh, Kyonghwan Oh, Seunghee Lee
  • Publication number: 20220102436
    Abstract: A display device includes a circular display area and a non-display area surrounding the circular display area. The display device may further include a load matcher disposed adjacent to an edge of the circular display area in the circular display area, a pixel disposed in the circular display area, spaced apart from the non-display area by the load matcher, and connected to the load matcher, and a repair pixel disposed adjacent to the edge of the circular display area in the non-display area, and connected to the pixel.
    Type: Application
    Filed: May 27, 2021
    Publication date: March 31, 2022
    Inventors: SUMI JANG, MINCHAE KWAK, KYEONGHWA KIM, MIHAE KIM, KYONGHWAN OH, SEUNGHAN JO, JAE-HO CHOI
  • Publication number: 20220069033
    Abstract: A display apparatus includes: a substrate including: a first region; a second region; a first non-display area surrounding the first region and the second region; and a display area surrounding at least a portion of an outline of the first non-display area; a plurality of dummy pixels at the first non-display area, and to not emit light; a plurality of emission control lines connected to at least one of the plurality of dummy pixels; and a plurality of power supply lines to supply a driving voltage to the plurality of dummy pixels, respectively. One of the plurality of power supply lines is electrically connected to one of the plurality of emission control lines, and one of the plurality of power supply lines is connected to one of the plurality of dummy pixels.
    Type: Application
    Filed: August 23, 2021
    Publication date: March 3, 2022
    Inventors: Mihae Kim, Kyeonghwa Kim, Junyong An, Kyonghwan Oh, Chaehan Hyun
  • Publication number: 20220068218
    Abstract: A display device may include a substrate including a circular display area and a non-display area, a plurality of pixels including a first pixel and a second pixel disposed on the display area of the substrate, a first sub-demux circuit connected to the first pixel and disposed on the non-display area, a second sub-demux circuit connected to the second pixel and disposed on the non-display area, a first connection line connected to the first sub-demux circuit and the second sub-demux circuit and disposed on the non-display area to transfer first and second data input signals to the first and second sub-demux circuits, and a plurality of gate stages connected to the pixels and disposed on the non-display area to transfer gate signals to the pixels. Some of the gate stages are disposed between the first sub-demux circuit and the second sub-demux circuit.
    Type: Application
    Filed: June 22, 2021
    Publication date: March 3, 2022
    Inventors: MINCHAE KWAK, KYEONGHWA KIM, MIHAE KIM, KYONGHWAN OH, SUMI JANG, SEUNGHAN JO, JAE-HO CHOI
  • Publication number: 20220020840
    Abstract: A display apparatus includes a substrate including a transmitting area, a display area surrounding the transmitting area, a first non-display area disposed between the transmitting area and the display area, and a second non-display area surrounding the display area. A plurality of pixels is arranged in the display area. A set of 2n connection wirings (where n is a positive integer) is disposed in the first non-display area and each of the 2n connection wirings extends along at least a part of an edge of the transmitting area. Each of a plurality of voltage wirings extends in a first direction and is connected to at least some of pixels disposed in a common row from among the plurality of pixels. Each of the plurality of voltage wirings is connected to one of the 2n connection wirings.
    Type: Application
    Filed: April 12, 2021
    Publication date: January 20, 2022
    Inventors: KYEONGHWA KIM, NUREE UM, KYUNGHOON KIM, MIHAE KIM, JAEDU NOH, KYONGHWAN OH, SEUNGHEE LEE
  • Publication number: 20210167160
    Abstract: A display panel having at least one hole inside a display area includes: a substrate; a plurality of display elements arranged in a plane around the at least one hole; and a plurality of signal lines extending in a first direction, wherein the at least one hole includes a first hole having a first width in a second direction and having two sides with asymmetric shapes with respect to a first central line passing through a center of the first width, wherein each of first and second neighboring signal lines extends in the first direction, the first signal line detours around a first side of the first hole, and the second signal line detours around a second side of the first hole opposite to the first side, and wherein the first and second signal lines are asymmetric with respect to a first virtual line therebetween.
    Type: Application
    Filed: May 1, 2020
    Publication date: June 3, 2021
    Inventors: Nuree UM, Hyungjun PARK, Junyong AN, Kyeonghwa KIM
  • Publication number: 20210091164
    Abstract: A display device includes: a substrate including a display area and a peripheral area outside the display area, the display area including a first display area and a second display area; a first fan-out portion in a portion of the peripheral area outside the first display area; a second fan-out portion outside the first fan-out portion; a first power supply line in the peripheral area corresponding to one side of the display area and overlapping at least a portion of the first fan-out portion; and a second power supply line in the peripheral area outside the display area and overlapping at least a portion of the second fan-out portion.
    Type: Application
    Filed: June 30, 2020
    Publication date: March 25, 2021
    Inventors: Byungsun KIM, Wonkyu KWAK, Kyeonghwa KIM, Jaewon KIM, Hyungjun PARK, Seungyeon CHO, Junwon CHOI