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: 11380664
    Abstract: A display device includes a substrate including a display area having a plurality of pixel areas and a non-display area located at at least one side of the display area; a pixel in each of the pixel areas; and a plurality of fan-out lines in the non-display area to form a first conductive layer. The pixel includes a pixel circuit layer including at least one transistor and a first bridge line and a second bridge line; and a display element layer on the pixel circuit layer. Each of the first and second bridge lines is electrically connected to a corresponding fan-out line from among the fan-out lines.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: July 5, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Ji Hye Lee, Kyung Bae Kim, Mee Hye Jung
  • Publication number: 20220199598
    Abstract: A display device includes a first electrode extended in a first direction, a second electrode spaced apart from the first electrode in a second direction and extended in the first direction, a first insulating layer on the first and second electrodes, light-emitting elements on the first insulating layer, each having at least an end disposed on the first electrode or the second electrode, a second insulating layer disposed on the light-emitting elements and extended in the first direction, and a first connection electrode disposed on the first electrode and electrically contacting the light-emitting elements, a second connection electrode disposed on the second electrode and electrically contacting the light-emitting elements. Each of the first and second connection electrodes includes a main portion electrically contacting the light-emitting elements, and a subsidiary portion having a width smaller than a width of the main portion and electrically connected to the main portion.
    Type: Application
    Filed: September 16, 2021
    Publication date: June 23, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Kyung Bae KIM, No Kyung PARK, Chong Chul CHAI, Do Yeong PARK
  • Publication number: 20220199683
    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: Application
    Filed: March 7, 2022
    Publication date: June 23, 2022
    Inventors: Yu Jin LEE, Kyung Bae KIM, Ji Hye LEE, Chong Chul CHAI
  • Publication number: 20220199676
    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: Application
    Filed: August 5, 2021
    Publication date: June 23, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Jin Seon Kwak, No Kyung Park, Kyung Bae Kim, Ji Hye Lee
  • Publication number: 20220199677
    Abstract: A display device includes a substrate including a display area and a non-display area; pixels disposed in the display area; first scan lines that transmit signals to the pixels, extend in a first direction, and are disposed in a second direction different from the first direction; second scan lines that extend in the second direction and are disposed in the first direction; and a pad part electrically connected to the second scan lines and disposed in the non-display area. Each of the first scan lines is electrically connected to at least one of the second scan lines through a corresponding one of contactors. Each of the pixels is a first pixel, a second pixel, or a third pixel based on whether or not including a contactor.
    Type: Application
    Filed: August 20, 2021
    Publication date: June 23, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Do Yeong PARK, Chong Chul CHAI, Kyung Bae KIM
  • Publication number: 20220181382
    Abstract: A pixel includes a first pattern and a second pattern spaced apart from each other in a light emitting area; a light emitting element between the first pattern and the second pattern; a first electrode electrically connected to a first end portion of the light emitting element; a second electrode electrically connected to a second end portion of the light emitting element; and a bank in a non-light emitting area. The first electrode and the second electrode extend from the light emitting area through the non-light emitting area to a separating area. The second pattern extends from the light emitting area through the non-light emitting area to the separating area, and overlaps an edge of the bank, and is disposed in an area between the first electrode and the second electrode at a boundary of the non-light emitting area and the separating area.
    Type: Application
    Filed: July 28, 2021
    Publication date: June 9, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Do Yeong PARK, Kyung Bae KIM, No Kyung PARK
  • Patent number: 11341878
    Abstract: A method of testing a display panel including a pixel coupled to first, second, and third power lines, a data line, scan lines, an emission control line, and a test line, the method includes: applying a first power supply voltage to the first power line; applying a test voltage having a turn-on voltage level to the second power line; applying a scan signal having a turn-on voltage level sequentially to the scan lines and an emission control signal having a turn-on voltage level to the emission control line; applying a gate signal to the test line to turn on a test transistor coupled between two electrode of a light emitting element included in the pixel; measuring a sensing voltage output through the data line; and determining whether the pixel is defective, based on a voltage level of the measured sensing voltage.
    Type: Grant
    Filed: March 17, 2020
    Date of Patent: May 24, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyun Joon Kim, Jun Ki Jeong, Kyung Hoon Chung, Kyung Bae Kim, Seung Chan Lee, Chong Chul Chai
  • Publication number: 20220157917
    Abstract: A display device includes a base layer including a display area and a non-display area; pixels in the display area, each of the pixels including a first electrode and a second electrode in a light emitting area and light emitting elements arranged therebetween; a bank in the display area and surrounding the light emitting area of each of the pixels; a first power line in the display area, a portion of the first power line overlapping the light emitting area of at least one pixel of the pixels; a second power line in the display area and covered by the bank; a first line in the non-display area and connected to the first power line; a second line in the non-display area and connected to the second power line; and a third line in the non-display area and separated from the pixels and the first and second power lines.
    Type: Application
    Filed: November 4, 2021
    Publication date: May 19, 2022
    Inventors: Do Yeong PARK, Kyung Bae KIM, Ji Hye LEE
  • Publication number: 20220130810
    Abstract: A display device according to an embodiment of the present disclosure includes a first pixel including a first sub-emission area and a second sub-emission area that are spaced from each other, and first light-emitting elements in the first and second sub-emission areas, the first light-emitting elements being configured to emit light having a first color; a light blocking pattern on the first pixel to cover an area between the first sub-emission area and the second sub-emission area and including a plurality of openings respectively corresponding to the first and second sub-emission areas; and a first color filter including a plurality of first color filter patterns disposed on the first and second sub-emission areas.
    Type: Application
    Filed: June 22, 2021
    Publication date: April 28, 2022
    Inventors: Do Yeong PARK, Kyung Bae KIM, Mee Hye JUNG
  • Publication number: 20220131038
    Abstract: A display device including a plurality of pixels, each of the pixels including a first area and a second area and including: a first electrode and a second electrode in the first area; a plurality of light-emitting elements located between the first electrode and the second electrode in the first area; a first insulating layer in the first area and the second area; and a second insulating layer on the first insulating layer, wherein the first insulating layer includes a first opening in the second area, the second insulating layer includes a second opening overlapping the first opening, and a width of the first opening in a first direction is greater than a width of the second opening in the first direction.
    Type: Application
    Filed: October 5, 2021
    Publication date: April 28, 2022
    Inventors: Do Yeong PARK, Sung Jin LEE, Kyung Bae KIM, Ji Hye LEE
  • Publication number: 20220093652
    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: May 19, 2021
    Publication date: March 24, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: No Kyung PARK, Kyung Bae KIM, Min Kyu WOO
  • Patent number: 11271032
    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: June 15, 2020
    Date of Patent: March 8, 2022
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yu Jin Lee, Kyung Bae Kim, Ji Hye Lee, Chong Chui Chai
  • Publication number: 20220068973
    Abstract: A display device includes a pixel disposed in a display area. The pixel includes a first electrode and a second electrode spaced apart from each other; a light emitting element disposed between the first electrode and the second electrode and including a first end portion and a second end portion; a third electrode disposed on the first end portion of the light emitting element and electrically connecting the first end portion to the first electrode; and a fourth electrode disposed on the second end portion of the light emitting element and electrically connecting the second end portion to the second electrode. An opening is formed in at least one of the first to fourth electrodes and disposed in a first area and a second area that are adjacent to the first end portion and the second end portion of the light emitting element.
    Type: Application
    Filed: June 1, 2021
    Publication date: March 3, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Hae Ju YUN, Yong Sub SHIM, Min Seong YI, Kyung Bae KIM, Jin Yool KIM, Jung Gun NAM
  • Publication number: 20220059628
    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: Application
    Filed: August 5, 2021
    Publication date: February 24, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Do Yeong PARK, Kyung Bae KIM, Mee Hye JUNG, Chong Chul CHAI
  • Publication number: 20220028922
    Abstract: A display device includes pixels including subpixels, electrodes spaced apart from each other in a first direction, extending in a second direction, and disposed in the subpixels, light emitting elements in the subpixels and on the electrodes, and contact electrodes electrically contacting the light emitting elements and the electrodes. The subpixels each includes an emission area including the light emitting elements, and a sub area spaced apart from the emission area. The pixels each includes a first subpixel including a first emission area and a sub area on a first side of the first emission area, and a second subpixel which is disposed on a first side of the first subpixel and includes a second emission area and a sub area disposed on a second side of the second emission area. The sub area of the second subpixel is disposed side by side with the first emission area.
    Type: Application
    Filed: March 24, 2021
    Publication date: January 27, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: No Kyung PARK, Kyung Bae KIM, Do Yeong PARK
  • Publication number: 20220011487
    Abstract: The display device may include a substrate; at least one pixel along a first direction on the substrate and including first, second, and third emission areas, in each of which a plurality of light emitting elements are provided; a light blocking pattern corresponding to an area between the first to third emission areas; and a color filter layer including a first color filter pattern provided on the first emission area, a second color filter pattern provided on the second emission area, and a third color filter pattern provided on the third emission area. Here, the pixel may include a first storage capacitor, a second storage capacitor, and a third storage capacitor on the substrate and corresponding to one of the first to third color filter patterns.
    Type: Application
    Filed: April 21, 2021
    Publication date: January 13, 2022
    Inventors: No Kyung PARK, Kyung Bae KIM, Ji Hye LEE
  • Publication number: 20220013509
    Abstract: A display device may include: a substrate including a display area and a non-display area; pixels in the display area, each of the pixels including first to fourth electrodes, and light emitting elements connected with the first to fourth electrodes; first pads in a pad area of the non-display area; first to third lines provided in the non-display area; and a circuit board overlapping with the pad area of the substrate and including second pads electrically connected with the first pads. The first pads may include a 1-1th pad connected to the first line, a 1-2th pad connected to the second line, and a 1-3th pad connected to the third line. An identical driving voltage may be applied to at least two lines of the first to third lines. The first to third lines may apply alignment signals to the first to fourth electrodes.
    Type: Application
    Filed: April 27, 2021
    Publication date: January 13, 2022
    Inventors: Ji Hye LEE, Kyung Bae KIM, Min Kyu WOO
  • Publication number: 20210398480
    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: Application
    Filed: September 3, 2021
    Publication date: December 23, 2021
    Inventors: Min Jae JEONG, Kyung Bae KIM, Chong Chul CHAI, Kyung Hoon CHUNG
  • Publication number: 20210399040
    Abstract: A light emitting device comprises: a substrate; a first electrode on the substrate, the first electrode having holes, and having inclined surfaces along the peripheries of the holes; second electrodes on the substrate, each of which is in a respective one of the holes of the first electrode; and light emitting elements between the first electrode and the second electrodes, the light-emitting elements being electrically connected to the first electrode and the second electrodes.
    Type: Application
    Filed: June 11, 2019
    Publication date: December 23, 2021
    Inventors: Chong Chul CHAI, Hyun Joon KIM, Hyun Min CHO, Kyung Bae KIM, Min Jae JEONG
  • Publication number: 20210399022
    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: Application
    Filed: June 4, 2021
    Publication date: December 23, 2021
    Applicant: Samsung Display Co., LTD.
    Inventors: Do Yeong PARK, No Kyung PARK, Kyung Bae KIM