Patents by Inventor Kyung Bae Kim

Kyung Bae 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).

  • Patent number: 11894414
    Abstract: A display device may include a substrate including pixels; a first bank that defines an emission area of the pixels; a first electrode and a second electrode spaced apart from each other in the emission area; a first insulating layer disposed on the first electrode and the second electrode; light emitting elements disposed on the first insulating layer between the first electrode and the second electrode; a second insulating layer disposed on the first bank; a first opening passing through the first insulating layer; and a second opening passing through the second insulating layer. The first opening and the second opening may overlap the first bank.
    Type: Grant
    Filed: August 5, 2021
    Date of Patent: February 6, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jin Seon Kwak, No Kyung Park, Kyung Bae Kim, Ji Hye Lee
  • Patent number: 11894415
    Abstract: A display device is provided. The display device includes a first electrode including a first electrode surface extending in a first direction and a second electrode surface connected to one end of the first electrode surface and extending in a second direction that is different from the first direction, a second electrode including a third electrode surface extending in the first direction and spaced apart from the first electrode surface and facing the first electrode surface, and a fourth electrode surface extending in the second direction and spaced apart from the second electrode surface and facing the second electrode surface, and at least one light emitting element between the first electrode and the second electrode and including a first light emitting element between the first electrode surface and the third electrode surface and a second light emitting element between the second electrode surface and the fourth electrode surface.
    Type: Grant
    Filed: March 7, 2022
    Date of Patent: February 6, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yu Jin Lee, Kyung Bae Kim, Ji Hye Lee, Chong Chul Chai
  • Publication number: 20240023378
    Abstract: A display device includes pixels each including an emission area and a non-emission area. Each pixel includes: a driving voltage line; a via layer disposed on the driving voltage line and including a first via hole exposing a first side of the driving voltage line, and a second via hole; a first electrode disposed on the via layer; a pixel defining layer disposed on the first electrode and the via layer and including a first opening formed in the emission area to expose a portion of the first electrode, and a second opening disposed in the non-emission area; an emission layer disposed in the first opening; and a second electrode disposed on the emission layer and the pixel defining layer. The second opening and the first via hole partially overlap each other. The via layer covers a second side of the driving voltage line.
    Type: Application
    Filed: July 6, 2023
    Publication date: January 18, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Do Yeong PARK, Ki Hyun PYO, Kyung Bae KIM
  • Patent number: 11877478
    Abstract: A display device includes subpixels each comprising an emission area, electrodes which are disposed in the emission area, extend in a first direction, and are spaced apart in a second direction intersecting the first direction, a first insulating layer disposed on the electrodes, a first bank, and light emitting elements. The first bank includes a first bank part disposed on the first insulating layer and surrounding the emission area, and a second bank part connected to the first bank part and disposed in the emission area. The light emitting elements are disposed on the electrodes spaced apart in the second direction. A height of the second bank part of the first bank is lower than a height of the first bank part of the first bank.
    Type: Grant
    Filed: August 5, 2021
    Date of Patent: January 16, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Do Yeong Park, Kyung Bae Kim, Mee Hye Jung, Chong Chul Chai
  • Publication number: 20240013717
    Abstract: A display device includes a pixel including a first sub-pixel to third sub-pixels, each arranged in a first direction and emitting light of a color, a first to third vertical power lines, each extending in a second direction different from the first direction, overlapping the first to third sub-pixels, respectively, and transmitting first to third powers, respectively, a first to third horizontal power lines, each extending in the first direction and electrically connected to the first to third vertical power lines through a contact hole, respectively. Voltages of the first power, the second power, and the third power are different from each other.
    Type: Application
    Filed: February 9, 2023
    Publication date: January 11, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Ji Hye LEE, Kyung Bae KIM, Ki Hyun PYO, Sung Chul HONG
  • Publication number: 20240006573
    Abstract: A display device includes electrodes spaced from each other in a display area, light emitting elements between the electrodes, test electrodes spaced from each other in a test area, and a test transistor electrically connected to the electrodes and the test electrodes.
    Type: Application
    Filed: June 21, 2023
    Publication date: January 4, 2024
    Inventors: Do Yeong PARK, Kyung Bae KIM, Won Jun LEE, Jong Woong CHANG
  • Publication number: 20240006569
    Abstract: A display device includes: a first internal bank and a second internal bank spaced apart on a substrate; a first reflective layer disposed on the first internal bank; a second reflective layer spaced apart from the first reflective layer and disposed on the second internal bank; a first insulating layer disposed on the first reflective layer and the second reflective layer; a first electrode disposed on the first insulating layer and overlapping the first reflective layer; a second electrode disposed on the first insulating layer, overlapping the second reflective layer, and being spaced apart from the first electrode; a second insulating layer disposed on the first electrode and the second electrode; and a light emitting element disposed on the second insulating layer and overlapping a space between the first electrode and the second electrode.
    Type: Application
    Filed: March 29, 2023
    Publication date: January 4, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Ki Hyun PYO, Kyung Bae KIM, Ji Hye LEE, Sung Chul HONG
  • Publication number: 20240006570
    Abstract: A display device that includes a display area and a non-display area surrounding the display area, a substrate, pixels disposed in the display area of the substrate, a grounding part disposed in the non-display area of the substrate, and a flexible printed circuit board disposed in the non-display area of the substrate to apply a driving signal to drive the pixels, wherein the non-display area includes first through fourth portions, the fourth portion on which the flexible printed circuit board is disposed, and the second portion spaced-apart from the fourth portion by the display area, the grounding part including a first ground pattern and a second ground pattern that are arranged alternately in the second portion of the non-display area.
    Type: Application
    Filed: March 29, 2023
    Publication date: January 4, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Ji Hye LEE, Jin Seon KWAK, Kyung Bae KIM, Yong Hee LEE
  • Publication number: 20230420616
    Abstract: A display device including: a first sub-pixel, a second sub-pixel, and a third sub-pixel adjacent to each other, each of the first, second, and third sub-pixels including an emission area and a non-emission area, where each of the first, second, and third sub-pixels includes: a first alignment electrode and a second alignment electrode spaced from each other; a first insulating layer on the first alignment electrode and the second alignment electrode; light emitting elements on the first insulating layer on the first alignment electrode and the second alignment electrode in the emission area; a second insulating layer on the first insulating layer and the light emitting elements; and a third insulating layer on the second insulating layer, wherein the second and the third insulating layers are not on at least one area of the first alignment electrode in at least the non-emission area.
    Type: Application
    Filed: June 21, 2023
    Publication date: December 28, 2023
    Inventors: Do Yeong PARK, Kyung Bae KIM, Won Jun LEE, Jong Woong CHANG
  • Publication number: 20230420628
    Abstract: A display device includes: first to fourth alignment electrodes sequentially arranged while being spaced from each other in a first direction in a first emission area; a bank on the first to fourth alignment electrodes, the bank including first and second horizontal extension parts extending in the first direction and first to third vertical extension parts extending in a second direction crossing the first direction, the bank partitioning the first emission area and a second emission area; first light emitting elements overlapping with the first alignment electrode and the second alignment electrode on the first alignment electrode and the second alignment electrode; second light emitting elements overlapping with the second alignment electrode and the third alignment electrode on the second alignment electrode and the third alignment electrode; and third light emitting elements overlapping with the third and fourth alignment electrodes on the third and fourth alignment electrodes.
    Type: Application
    Filed: June 21, 2023
    Publication date: December 28, 2023
    Inventors: No Kyung PARK, Kyung Bae KIM, Sun Kwun SON, Dong Hee SHIN
  • Patent number: 11855122
    Abstract: A display device includes subpixels comprising a plurality of first type subpixels and a plurality of second type subpixels, a plurality of electrodes, each comprising an electrode stem portion and at least one electrode protrusion portion, a plurality of light emitting elements having a shape of extending in one direction and disposed on the electrode stem portion of the one electrode and the electrode protrusion portion of the other electrode, and a plurality of first contact electrodes contacting a first end of the light emitting elements and a plurality of second contact electrodes contacting a second end of the light emitting elements, wherein the light emitting elements comprise first type light emitting elements and second type light emitting elements, and the first ends of the first type light emitting elements and the second type light emitting elements face in opposite directions.
    Type: Grant
    Filed: March 9, 2021
    Date of Patent: December 26, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Do Yeong Park, Kyung Bae Kim, No Kyung Park
  • Publication number: 20230395614
    Abstract: A display device includes electrodes on a base layer; a first insulating layer on the electrodes; a bank on the first insulating layer, protruding in a thickness direction of the base layer, and surrounding a region; light emitting elements in the region on the base layer; and connection electrodes electrically connected to the light emitting elements. The connection electrodes include an anode connection electrode electrically connected to the light emitting elements, a cathode connection electrode electrically connected to the light emitting elements, and an extension connection electrode on the bank. The first insulating layer forms at least one first opening. The at least one first opening overlaps the extension connection electrode in a plan view.
    Type: Application
    Filed: January 13, 2023
    Publication date: December 7, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Jin Seon KWAK, Kyung Bae KIM, Do Yeong PARK, Yong Hee LEE, Ji Hye LEE
  • Patent number: 11830885
    Abstract: A display device includes a first voltage line disposed on a substrate, a first power supply voltage being applied to the first voltage line, a buffer layer disposed on the first voltage line, a first transistor including a semiconductor pattern disposed on the buffer layer, a first insulating layer disposed on the semiconductor pattern of the first transistor, a first capacitor electrode disposed on the first insulating layer, a second insulating layer disposed on the first capacitor electrode, and a first electrode and a second electrode disposed on the second insulating layer and spaced apart from each other, wherein the second electrode is electrically connected to the first voltage line, and the first voltage line overlaps the first capacitor electrode in a thickness direction of the substrate.
    Type: Grant
    Filed: June 4, 2021
    Date of Patent: November 28, 2023
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Do Yeong Park, No Kyung Park, Kyung Bae Kim
  • Patent number: 11817046
    Abstract: A display device includes a light-emitting diode including a first conductivity-type semiconductor, an active layer, and a second conductivity-type semiconductor; a first voltage line to which a first voltage is applied; a second voltage line to which a second voltage is applied; a first transistor including a source electrode electrically connected to the first voltage line and a drain electrode electrically connected to a first electrode of the light-emitting diode and to the first conductivity-type semiconductor; a second transistor including a drain electrode electrically connected to a gate electrode of the first transistor and a source electrode electrically connected to a data line to apply a data signal; a capacitor electrically connected to the gate electrode of the first transistor and the first electrode; and a third transistor including a source electrode electrically connected to the second voltage line and a drain electrode electrically connected to the first electrode.
    Type: Grant
    Filed: November 23, 2022
    Date of Patent: November 14, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min Jae Jeong, Kyung Bae Kim, Chong Chul Chai, Kyung Hoon Chung
  • Publication number: 20230335689
    Abstract: A display device includes a first base substrate on which a plurality of sub-pixels are defined, a first insulating layer disposed on the first base substrate and including a first and second surfaces, the first surface facing the first base substrate, a plurality of light-emitting elements arranged in each of the plurality of sub-pixels on the first surface of the first insulating layer, a first and second electrodes directly arranged on the first surface of the first insulating layer and electrically contacting each end of each of the light-emitting elements, a circuit layer disposed between the first and second electrodes and the first base substrate and including first transistors electrically connected to the light-emitting elements, a color control structure arranged on the second surface of the first insulating layer and including a light-transmitting layer and wavelength conversion layers, and a color filter layer disposed on the color control structure.
    Type: Application
    Filed: September 6, 2021
    Publication date: October 19, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Kyung Bae KIM, Mee Hye JUNG
  • Publication number: 20230327051
    Abstract: A display device includes contact electrodes on a substrate; an interlayer insulation layer on the contact electrodes; a passivation layer on the interlayer insulation layer; pixel electrodes on the passivation layer; a first insulation layer on the pixel electrodes; light emitting elements between the pixel electrodes; and connection electrodes electrically connected to the light emitting elements, wherein the passivation layer and/or the first insulation layer include an opening exposing the interlayer insulation layer, and the connection electrodes are in contact with the contact electrodes through a contact portion penetrating the interlayer insulation layer exposed by the opening.
    Type: Application
    Filed: April 6, 2023
    Publication date: October 12, 2023
    Inventors: Do Yeong PARK, Chong Chul CHAI, Jin Seon KWAK, Kyung Bae KIM
  • Publication number: 20230327065
    Abstract: A pixel may include a first sub-pixel, a third sub-pixel, and a second sub-pixel that are arranged in a second direction and each include an emission area and a non-emission area. Each of the first, second, and third sub-pixels may include: a pixel circuit layer including a passivation layer including first to third via holes; a first alignment electrode disposed on the passivation layer; a second alignment electrode spaced apart from the first alignment electrode; a floating pattern spaced apart from the first alignment electrode; a light emitting element disposed between the first alignment electrode and the second alignment electrode. A first via hole of the first sub-pixel, a first via hole of the third sub-pixel, and a first via hole of the second sub-pixel may be positioned in a same column.
    Type: Application
    Filed: March 2, 2023
    Publication date: October 12, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: Kyung Bae KIM, Do Yeong PARK, Ji Hye LEE
  • Publication number: 20230317907
    Abstract: A display device includes first, second, and third pixels adjacent to each other. Each of the first, second, and third pixels includes: light emitting elements; connection electrodes electrically connected to ends of the light emitting elements; and sub-electrodes on a same layer as the connection electrodes and electrically connected to the connection electrodes, and one of the sub-electrodes of the first pixel is electrically connected to one of the sub-electrodes of the second pixel.
    Type: Application
    Filed: February 23, 2023
    Publication date: October 5, 2023
    Inventors: Do Yeong PARK, Kyung Bae KIM, Chong Chul CHAI
  • Publication number: 20230317738
    Abstract: A display device includes pixels disposed in a display area and including first and second pixels that are adjacent to each other in a first direction, and a first integrated bank pattern disposed between the first and second pixels. Each of the pixels includes a first electrode and a second electrode that are spaced apart from each other along the first direction in a light emitting area and extend in a second direction, a first bank pattern portion overlapping the first electrode, and a second bank pattern portion overlapping the second electrode. The first integrated bank pattern includes a second bank pattern portion disposed at the first pixel, a first bank pattern portion disposed at the second pixel, and a protrusion extending in the second direction in a boundary area between the first pixel and the second pixel.
    Type: Application
    Filed: June 9, 2023
    Publication date: October 5, 2023
    Applicant: Samsung Display Co., LTD.
    Inventors: No Kyung PARK, Kyung Bae KIM, Min Kyu WOO
  • Publication number: 20230317908
    Abstract: A display device includes a substrate; a conductive layer on the substrate and including a first voltage line, a second voltage line, and a contact conductive pattern spaced from each other; a passivation layer on the conductive layer; a via layer on the passivation layer; an alignment line on the via layer and including a first alignment line and a second alignment line spaced from each other; a light emitting element between the first alignment line and the second alignment line on the alignment line; and a first contact electrode and a second contact electrode on the light emitting element and spaced from each other, wherein: the first alignment line is electrically connected to the second voltage line through a first alignment contact hole, the second alignment line is electrically connected to the first voltage line through a second alignment contact hole.
    Type: Application
    Filed: March 10, 2023
    Publication date: October 5, 2023
    Inventors: Do Yeong PARK, Kyung Bae KIM, Chong Chul CHAI, Sung Chul HONG