Patents by Inventor Kwi Hyun Kim

Kwi Hyun 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: 20240072228
    Abstract: A display device comprises a first pixel including a first emission area, a second pixel including a second emission area spaced apart from the first emission area in a first direction, and a bank partitioning the first emission area and the second emission area, wherein the first pixel includes a first alignment electrode, a second alignment electrode, and a third alignment electrode sequentially located, spaced apart from each other in the first direction, and overlapping with the first emission area, first light-emitting elements above, and overlapping with, the first alignment electrode and the second alignment electrode, second light-emitting elements above, and overlapping with, the second alignment electrode and the third alignment electrode, and a dummy electrode between the first emission area and the second emission area, and overlapping with the bank.
    Type: Application
    Filed: August 2, 2023
    Publication date: February 29, 2024
    Inventors: Won Jun LEE, Dong Woo KIM, Do Yeong PARK, Se Hyun LEE, Kwi Hyun KIM, Min Gyeong SHIN, Jin Joo HA
  • Patent number: 11823622
    Abstract: Provided herein may be a pixel. The pixel may include a driving transistor including a gate electrode coupled to a first node, a first electrode coupled to a first power line, and a second electrode coupled to a second node, a control transistor including a gate electrode coupled to the first node, a first electrode coupled to the second node, and a second electrode that is different from the first electrode, a first emission unit including at least one light-emitting element coupled between the second electrode of the control transistor and a second power line, and a second emission unit including at least one light-emitting element coupled between the second node and the second power line, wherein the second electrode of the control transistor is coupled to a first electrode of the first emission unit.
    Type: Grant
    Filed: November 5, 2021
    Date of Patent: November 21, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hwa Rang Lee, Kwi Hyun Kim, Sang Yong No, Ji Yeon Choi
  • Patent number: 11762251
    Abstract: A display device according to an embodiment of the present inventive concept includes: a substrate including a first region and a second region; and a plurality of pixels disposed on the substrate, wherein the plurality of pixels each include a first data line and a second data line overlapping a pixel electrode, a first capacitance between the first data line and the pixel electrode is smaller than a second capacitance between the second data line and the pixel electrode in a pixel disposed in the first region, and the first capacitance between the first data line and the pixel electrode is larger than the second capacitance between the second data line and a pixel electrode in the pixel disposed in the second region.
    Type: Grant
    Filed: December 6, 2021
    Date of Patent: September 19, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Gwon-Heon Ryu, Kwi Hyun Kim, Kook Hyun Choi, Woo Gun Kang, Kyung Won Park, Jin Su Lee
  • Patent number: 11659750
    Abstract: Provided is a tiled display. The tiled display includes: a first display device including a first display area including pixels, a second display device including a second display area including pixels adjacent to the first display area, and a seam between the first display area and the second display area. Each of the first display device and the second display device includes: a first base part supporting a respective one of the first display device and the second display device, a thin-film transistor layer on the first base part, the thin-film transistor layer including thin-film transistors included in the pixels and including connection lines in the seam, and bridge electrodes in the seam to couple between the connection lines of the first display device and the second display device.
    Type: Grant
    Filed: August 24, 2021
    Date of Patent: May 23, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Kwi Hyun Kim, Sang Yong No, Tae Ho Kang, Hwa Rang Lee, Joon Hoo Choi, Ji Yeon Choi
  • Publication number: 20230142014
    Abstract: A display device includes a base layer including a display area and a non-display area, an emission unit including a first electrode electrically connected to a first driving power source, a second electrode electrically connected to a second driving power source, and a light-emitting element disposed between first and second electrodes, a first transistor including a first terminal electrically connected to the first driving power source, a second terminal electrically connected to the first electrode of the emission unit, and a gate electrode electrically connected to a first node, a second transistor including a first terminal electrically connected to a data line, a second terminal electrically connected to the first node, and a gate electrode electrically connected to a scan line, and an electrostatic discharge circuit disposed in the display area and disposed between the first driving power source and the data line.
    Type: Application
    Filed: September 21, 2022
    Publication date: May 11, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Kwi Hyun KIM, Byoung Sun NA, Sang Yong NO, Jong Woong CHANG, Chong Chul CHAI
  • Patent number: 11637170
    Abstract: A display device, includes: pixels at a display area; gate lines at the display area, and connected to the pixels; carry clock lines and scan clock lines at the display area; and a gate driving circuit distributedly located at the display area, and connected to the carry clock lines, the scan clock lines, and the gate lines. The gate driving circuit includes a plurality of stages, each of the stages to output, as a carry signal, a carry clock signal supplied through a corresponding carry clock line from among the carry clock lines, and to output, as a scan signal, a scan clock signal supplied through a corresponding scan clock line from among the scan clock lines. The corresponding carry clock line and the corresponding scan clock line corresponding to one stage from among the stages are spaced from each other with at least one of the pixels interposed therebetween.
    Type: Grant
    Filed: August 17, 2021
    Date of Patent: April 25, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang Yong No, Tae Ho Kang, Kwi Hyun Kim, Hwa Rang Lee, Ji Yeon Choi
  • Publication number: 20230041072
    Abstract: A display device includes: a display area and a non-display area; a first pixel area and a second pixel area, each provided in the display area; scan lines extending in a first direction and disposed in the first pixel area and the second pixel area; first sub-scan lines extending in a second direction and disposed in the first pixel area, the second direction intersecting the first direction; second sub-scan lines extending in the second direction and disposed in the first pixel area and the second pixel area; and a pad part provided in the non-display area, the pad part being electrically connected to the first sub-scan lines and the second sub-scan lines. The scan lines are electrically connected to at least one of the first sub-scan lines and the second sub-scan lines. The first sub-scan lines do not overlap the second pixel area in a plan view.
    Type: Application
    Filed: July 21, 2022
    Publication date: February 9, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Sang Yong NO, Hwa Rang LEE, Kwi Hyun KIM, Ji Yeon CHOI
  • Publication number: 20220343824
    Abstract: A display device includes a data driver that outputs a first data signal and a second data signal of different voltages, and a pixel that emits light in response to the first data signal and the second data signal. The pixel includes a current generator generating a driving current corresponding to the first data signal, a first light emitting part including a first electrode, a second electrode, and a first light emitting element, a second light emitting part including a third electrode, a fourth electrode connected, and a second light emitting element, and a current controller controlling a divided current supplied to the second light emitting part in response to the second data signal.
    Type: Application
    Filed: December 8, 2021
    Publication date: October 27, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Kwi Hyun KIM, Sang Yong NO, Hwa Rang LEE, Ji Yeon CHOI
  • Patent number: 11468817
    Abstract: A display device includes a data driver that outputs a first data signal and a second data signal of different voltages, and a pixel that emits light in response to the first data signal and the second data signal. The pixel includes a current generator generating a driving current corresponding to the first data signal, a first light emitting part including a first electrode, a second electrode, and a first light emitting element, a second light emitting part including a third electrode, a fourth electrode connected, and a second light emitting element, and a current controller controlling a divided current supplied to the second light emitting part in response to the second data signal.
    Type: Grant
    Filed: December 8, 2021
    Date of Patent: October 11, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kwi Hyun Kim, Sang Yong No, Hwa Rang Lee, Ji Yeon Choi
  • Publication number: 20220293052
    Abstract: Provided herein may be a pixel. The pixel may include a driving transistor including a gate electrode coupled to a first node, a first electrode coupled to a first power line, and a second electrode coupled to a second node, a control transistor including a gate electrode coupled to the first node, a first electrode coupled to the second node, and a second electrode that is different from the first electrode, a first emission unit including at least one light-emitting element coupled between the second electrode of the control transistor and a second power line, and a second emission unit including at least one light-emitting element coupled between the second node and the second power line, wherein the second electrode of the control transistor is coupled to a first electrode of the first emission unit.
    Type: Application
    Filed: November 5, 2021
    Publication date: September 15, 2022
    Inventors: Hwa Rang LEE, Kwi Hyun KIM, Sang Yong NO, Ji Yeon CHOI
  • Publication number: 20220190093
    Abstract: A display device, includes: pixels at a display area; gate lines at the display area, and connected to the pixels; carry clock lines and scan clock lines at the display area; and a gate driving circuit distributedly located at the display area, and connected to the carry clock lines, the scan clock lines, and the gate lines. The gate driving circuit includes a plurality of stages, each of the stages to output, as a carry signal, a carry clock signal supplied through a corresponding carry clock line from among the carry clock lines, and to output, as a scan signal, a scan clock signal supplied through a corresponding scan clock line from among the scan clock lines. The corresponding carry clock line and the corresponding scan clock line corresponding to one stage from among the stages are spaced from each other with at least one of the pixels interposed therebetween.
    Type: Application
    Filed: August 17, 2021
    Publication date: June 16, 2022
    Inventors: Sang Yong NO, Tae Ho KANG, Kwi Hyun KIM, Hwa Rang LEE, Ji Yeon CHOI
  • Publication number: 20220107537
    Abstract: A display device according to an embodiment of the present inventive concept includes: a substrate including a first region and a second region; and a plurality of pixels disposed on the substrate, wherein the plurality of pixels each include a first data line and a second data line overlapping a pixel electrode, a first capacitance between the first data line and the pixel electrode is smaller than a second capacitance between the second data line and the pixel electrode in a pixel disposed in the first region, and the first capacitance between the first data line and the pixel electrode is larger than the second capacitance between the second data line and a pixel electrode in the pixel disposed in the second region.
    Type: Application
    Filed: December 6, 2021
    Publication date: April 7, 2022
    Inventors: Gwon-Heon RYU, Kwi Hyun KIM, Kook Hyun CHOI, Woo Gun KANG, Kyung Won PARK, Jin Su LEE
  • Publication number: 20220102476
    Abstract: Provided is a tiled display. The tiled display includes: a first display device including a first display area including pixels, a second display device including a second display area including pixels adjacent to the first display area, and a seam between the first display area and the second display area. Each of the first display device and the second display device includes: a first base part supporting a respective one of the first display device and the second display device, a thin-film transistor layer on the first base part, the thin-film transistor layer including thin-film transistors included in the pixels and including connection lines in the seam, and bridge electrodes in the seam to couple between the connection lines of the first display device and the second display device.
    Type: Application
    Filed: August 24, 2021
    Publication date: March 31, 2022
    Inventors: Kwi Hyun KIM, Sang Yong NO, Tae Ho KANG, Hwa Rang LEE, Joon Hoo CHOI, Ji Yeon CHOI
  • Patent number: 11226527
    Abstract: A display device according to an embodiment of the present inventive concept includes: a substrate including a first region and a second region; and a plurality of pixels disposed on the substrate, wherein the plurality of pixels each include a first data line and a second data line overlapping a pixel electrode, a first capacitance between the first data line and the pixel electrode is smaller than a second capacitance between the second data line and the pixel electrode in a pixel disposed in the first region, and the first capacitance between the first data line and the pixel electrode is larger than the second capacitance between the second data line and a pixel electrode in the pixel disposed in the second region.
    Type: Grant
    Filed: February 26, 2020
    Date of Patent: January 18, 2022
    Inventors: Gwon-Heon Ryu, Kwi Hyun Kim, Kook Hyun Choi, Woo Gun Kang, Kyung Won Park, Jin Su Lee
  • Patent number: 11049466
    Abstract: A display device includes a driver circuit monolithically integrated in a display panel. The display panel has a plurality of pixel units and signal lines; and a driver circuit including a first circuit element and a second circuit element integrally formed on the display panel and electrically connected to each other, wherein patterning density of the first circuit element and patterning density of the second circuit element would be substantially different from each other if the first and second circuit elements were laid out as concentrated individual circuit elements, but where the driver layout includes at least two spaced apart first circuit element regions over which the first circuit element is distributively formed and the driver layout includes an interposed second circuit element region in which at least part of the second circuit element is formed.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: June 29, 2021
    Inventors: Kwi Hyun Kim, Young Goo Song
  • Patent number: 10950191
    Abstract: A display device includes the following elements: a pixel electrode; a first data line electrically connected to the pixel electrode; a second data line adjacent to the pixel electrode without being electrically connected to the pixel electrode; a first sensing electrode disposed directly on the same insulating layer as the pixel electrode; a second sensing electrode disposed directly on the same insulating layer as the first sensing electrode and separated from the first sensing electrode by a predetermined distance; and a third sensing electrode disposed directly on the same insulating layer as the first data line and the second data line, partially overlapping the first sensing electrode to form a first sensing capacitor, and partially overlapping the second sensing electrode to form a second sensing capacitor.
    Type: Grant
    Filed: August 27, 2019
    Date of Patent: March 16, 2021
    Inventors: Kwi Hyun Kim, Kook Hyun Choi, Woo Gun Kang, Kyung Won Park
  • Patent number: 10909939
    Abstract: A display device includes a display panel including first color pixels in a first pixel column, second color pixels in a second pixel column, third color pixels in a third pixel column, a first data line connected to the second color pixels in first through N-th pixel rows and connected to the first color pixels in (N+1)-th through 2N-th pixel rows, and a second data line connected to the third color pixels in the first through N-th pixel rows and connected to the second color pixels in the (N+1)-th through 2N-th pixel rows, where N is an integer greater than 1, and a data driver which applies a first polarity data voltage to the first data line, and applies a second polarity data voltage to the second data line.
    Type: Grant
    Filed: September 27, 2019
    Date of Patent: February 2, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Kwi Hyun Kim, Kook Hyun Choi, Kyungwon Park, Hyeong Jun Jin, Chang-Yong Hong
  • Publication number: 20200348571
    Abstract: A display device according to an embodiment of the present inventive concept includes: a substrate including a first region and a second region; and a plurality of pixels disposed on the substrate, wherein the plurality of pixels each include a first data line and a second data line overlapping a pixel electrode, a first capacitance between the first data line and the pixel electrode is smaller than a second capacitance between the second data line and the pixel electrode in a pixel disposed in the first region, and the first capacitance between the first data line and the pixel electrode is larger than the second capacitance between the second data line and a pixel electrode in the pixel disposed in the second region.
    Type: Application
    Filed: February 26, 2020
    Publication date: November 5, 2020
    Inventors: Gwon-Heon RYU, Kwi Hyun KIM, Kook Hyun CHOI, Woo Gun KANG, Kyung Won PARK, Jin Su LEE
  • Publication number: 20200251030
    Abstract: A display device includes the following elements: a pixel electrode; a first data line electrically connected to the pixel electrode; a second data line adjacent to the pixel electrode without being electrically connected to the pixel electrode; a first sensing electrode disposed directly on the same insulating layer as the pixel electrode; a second sensing electrode disposed directly on the same insulating layer as the first sensing electrode and separated from the first sensing electrode by a predetermined distance; and a third sensing electrode disposed directly on the same insulating layer as the first data line and the second data line, partially overlapping the first sensing electrode to form a first sensing capacitor, and partially overlapping the second sensing electrode to form a second sensing capacitor.
    Type: Application
    Filed: August 27, 2019
    Publication date: August 6, 2020
    Inventors: Kwi Hyun KIM, Kook Hyun CHOI, Woo Gun KANG, Kyung Won PARK
  • Patent number: 10725346
    Abstract: A liquid crystal display includes first and second voltage divider reference lines, first and second pixel electrodes, and first and second switching circuits. The first and second voltage divider reference lines are on different layers and extend in different directions. The first pixel electrode includes a first sub-pixel electrode and a second sub-pixel electrode, that receives a voltage lower than a voltage to be applied to the first sub-pixel electrode. The second pixel electrode includes a third sub-pixel electrode and a fourth sub-pixel electrode, that receives a voltage lower than a voltage to be applied to the third sub-pixel electrode. The first switching circuit is connected to the first voltage divider reference line, and the second switching circuit is connected to the second voltage divider reference line.
    Type: Grant
    Filed: January 6, 2016
    Date of Patent: July 28, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang Yong No, Kwi Hyun Kim