Patents by Inventor Keun-Kyu Song

Keun-Kyu Song 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: 20250210598
    Abstract: A display device includes a substrate, and a bank layer disposed on the substrate, and defining a first emission area, a second emission area, and a third emission area. Each of the first emission area, the second emission area, and the third emission area includes a first electrode and a second electrode extending in a first direction and spaced apart from each other in a second direction intersecting the first direction, and a plurality of light emitting elements disposed between the first electrode and the second electrode, the first emission area and the second emission area are adjacent to each other in the first direction, the third emission area is spaced apart from the first emission area or the second emission area in the second direction, and the first emission area, the second emission area, and the third emission area emit light of different colors.
    Type: Application
    Filed: July 15, 2024
    Publication date: June 26, 2025
    Applicant: Samsung Display Co., LTD.
    Inventors: Ki Nyeng KANG, Sung Hoon KIM, Ock Soo SON, Keun Kyu SONG
  • Patent number: 12324312
    Abstract: A display device may include: a base layer including a display area and a non-display area; and a plurality of pixels provided on the display area, and each including a plurality of sub-pixels. Each of the sub-pixels may include a pixel circuit layer, and a display element layer including an emission area formed to emit light, and a non-emission area provided around a perimeter of the emission area. The display element layer may include: a partition wall provided on the emission area of each of the sub-pixels; a bank provided on the non-emission area of each sub-pixel, and disposed on a surface equal to a surface on which the partition wall is disposed; a first electrode and a second electrode provided on the partition wall and spaced apart from each other; and at least one light emitting element provided between the first and second electrodes in the emission area of each sub-pixel, and configured to emit the light.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: June 3, 2025
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dae Hyun Kim, Veidhes Basrur, Xinxing Li, Tae Jin Kong, Hee Keun Lee, Hyun Min Cho, Keun Kyu Song, Jin Oh Kwag
  • Patent number: 12324271
    Abstract: A method of aligning light emitting elements includes applying a ground voltage to a first electrode and applying a first AC voltage to a second electrode spaced apart from the first electrode; and applying a ground voltage to the first electrode and applying a second AC voltage to the second electrode, wherein the first AC voltage has an asymmetric waveform.
    Type: Grant
    Filed: June 10, 2019
    Date of Patent: June 3, 2025
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jong Hyuk Kang, Won Ho Lee, Hyun Deok Im, Jin Oh Kwag, Hyun Min Cho, Won Kyu Kim, Keun Kyu Song
  • Publication number: 20250107294
    Abstract: A display device includes a first electrode and a second electrode that are spaced apart from and facing each other; a light-blocking layer disposed above the first electrode and the second electrode; and at least one light-emitting element disposed between the first electrode and the second electrode. The light-blocking layer includes a light-blocking portion absorbing light and an opening pattern. The light-blocking portion includes an area partially overlapping the first electrode and the second electrode. The at least one opening pattern exposes portions of the first and second electrodes facing each other and at least a portion of an area between the first and second electrodes facing each other. The at least one light-emitting element overlaps the at least one opening pattern.
    Type: Application
    Filed: February 23, 2024
    Publication date: March 27, 2025
    Applicant: Samsung Display Co., LTD.
    Inventors: Jin Oh KWAG, Dae Hyun KIM, Keun Kyu SONG, Sung Chan JO, Hyun Min CHO
  • Publication number: 20250072114
    Abstract: An embodiment of the disclosure provides a display device including a substrate including a display area, and a peripheral area disposed on a side of the display area, a first alignment electrode, a second alignment electrode, and a third alignment electrode that overlap the display area, are spaced apart from each other in a first direction, and extend in a second direction intersecting the first direction, light emitting elements disposed between the first alignment electrode and the second alignment electrode, and between the second alignment electrode and the third alignment electrode, and a data line overlapping the second alignment electrode in a plan view and extending in the second direction. A length of a first width of the data line in the first direction is less than or equal to a length of a second width of the second alignment electrode in the first direction.
    Type: Application
    Filed: July 9, 2024
    Publication date: February 27, 2025
    Applicant: Samsung Display Co., LTD.
    Inventors: Veidhes BASRUR, Ki Nyeng KANG, Keun Kyu SONG, Jong Hwan CHA
  • Patent number: 12183769
    Abstract: A display device and a method of manufacturing the same are provided. A display device includes: a substrate including a plurality of pixels; a first electrode and a second electrode spaced apart from each other on the substrate; a light emitting element located between the first electrode and the second electrode; and a conductive pattern on the light emitting element. The light emitting element includes a first semiconductor layer, a second semiconductor layer, and an active layer between the first semiconductor layer and the second semiconductor layer, and the conductive pattern overlaps the active layer and does not overlap the first semiconductor layer or the second semiconductor layer.
    Type: Grant
    Filed: July 12, 2021
    Date of Patent: December 31, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Mi Jin Park, Jin Sun Kim, Jin Yeong Kim, Sang Ho Park, Keun Kyu Song, Woo Guen Jang
  • Patent number: 12153761
    Abstract: A display device including a substrate and a plurality of pixels in a display region of the substrate. Each of the pixels includes first and second sub-pixels, and each of the first and second sub-pixels has a light emitting region for emitting light. The first sub-pixel includes a first light emitting element in the light emitting region and configured to emit visible light. The second sub-pixel includes a second light emitting element in the light emitting region and configured to emit infrared light and a light receiving element configured to receive the infrared light emitted from the second light emitting element to detect a user's touch. The second light emitting element and the light receiving element in the second sub-pixel are electrically insulated from and optically coupled to each other to form a photo-coupler.
    Type: Grant
    Filed: August 4, 2023
    Date of Patent: November 26, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun Min Cho, Dae Hyun Kim, Sung Chul Kim, Hye Yong Chu, Keun Kyu Song
  • Publication number: 20240379917
    Abstract: A display device and method of manufacturing a display device. The display device includes a first electrode, a second electrode facing the first electrode, a first insulating layer on the first electrode and the second electrode and between the first electrode and the second electrode, a light emitting element on the first insulating layer, a second insulating layer covering the light emitting element and exposing end portions of the light emitting element, a third insulating layer on the second insulating layer, a first contact electrode electrically connected to the first electrode, on the third insulating layer and in contact with a first end portion of the light emitting element exposed by the second insulating layer, and a second contact electrode electrically connected to the second electrode, on the third insulating layer and in contact with a second end portion of the light emitting element exposed by the second insulating layer.
    Type: Application
    Filed: July 23, 2024
    Publication date: November 14, 2024
    Inventors: Dae Hyun KIM, Hyun Min CHO, Keun Kyu SONG, Je Won YOO, Bek Hyun LIM, Sung Chan JO
  • Publication number: 20240363806
    Abstract: A display device includes a first electrode, a second electrode spaced apart from the first electrode to face the first electrode, a first insulation layer, at least one light emitting element, a second insulation layer, a first contact electrode, and a second contact electrode. The first insulation layer includes an overlapping area which overlaps the at least one light emitting element, a first non-overlapping area which extends outward from the first end of the at least one light emitting element and does not overlap the at least one light emitting element, and a second non-overlapping area which extends outward from the second end of the at least one light emitting element and does not overlap the at least one light emitting element.
    Type: Application
    Filed: July 5, 2024
    Publication date: October 31, 2024
    Applicant: Samsung Display Co., LTD.
    Inventors: Dae Hyun KIM, Hyun Min CHO, Jin Oh KWAG, Keun Kyu SONG, Sung Chan JO
  • Patent number: 12100689
    Abstract: An apparatus for manufacturing a light emitting display device includes a substrate transfer stage including a plurality of support plates arranged at an interval in a first direction, each of the plurality of support plates extending in a second direction; and at least one electric-field application module disposed on at least one side of the substrate transfer stage. The at least one electric-field application module includes a probe head including at least one probe pin; and a driver connected to the probe head to move the probe head at least up and down.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: September 24, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jong Hyuk Kang, Hae Yun Choi, Han Su Kim, Eun A Yang, Hyun Min Cho, Keun Kyu Song, Jin Oh Kwag
  • Patent number: 12100728
    Abstract: A display device comprises a substrate including a display area and a non-display area, and pixels disposed in the display area, each of the pixels including sub-pixels. Each of sub-pixels includes a pixel circuit layer, and a display element layer including at least one light emitting element. The display element layer includes first and second electrodes spaced apart from each other, the light emitting element disposed between the first electrode and second electrode, a first contact electrode that electrically connects an end of the light emitting element to the first electrode, and a second contact electrode that electrically connects another end of the light emitting element to the second electrode. Each of sub-pixels includes a first area in which the pixel circuit layer is disposed, and a second area adjacent to the first area. The second area includes a transmission area through which the light passes.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: September 24, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jin Oh Kwag, Jong Hyuk Kang, Keun Kyu Song, Sung-Chan Jo, Hyun Min Cho
  • Patent number: 12080693
    Abstract: A display device and a method of manufacturing the same are provided. The display device comprises a first area which extends in a first direction, a second area which extends in the first direction and is alongside the first area in a second direction intersecting the first direction, at least one first light emitting element in the first area, at least one second light emitting element in the second area, at least one first wiring coupled to an end of the first light emitting element in the first area and that extends in the first direction and at least one second wiring coupled to an end of the second light emitting element in the second area and that extends in the first direction, wherein the first wiring and the second wiring are electrically isolated from each other.
    Type: Grant
    Filed: May 29, 2019
    Date of Patent: September 3, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Won Ho Lee, Yo Han Lee, Jong Hyuk Kang, Jin Oh Kwag, Hyun Deok Im, Hyun Min Cho, Won Kyu Kim, Keun Kyu Song
  • Patent number: 12074264
    Abstract: A display device and a method of manufacturing a display device are provided.
    Type: Grant
    Filed: September 20, 2018
    Date of Patent: August 27, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dae Hyun Kim, Hyun Min Cho, Keun Kyu Song, Je Won Yoo, Bek Hyun Lim, Sung Chan Jo
  • Patent number: 12068279
    Abstract: A dipole alignment device includes an electric field forming part including a stage, and a probe part which form an electric field on the stage; an inkjet printing apparatus including at least one inkjet head which sprays ink including dipoles and a solvent with the dipoles dispersed therein onto the stage; a transportation part comprising a first moving part which moves the electric field forming part in at least one direction; and a light irradiation apparatus including a light irradiation part which applies light to the ink sprayed onto the stage.
    Type: Grant
    Filed: June 3, 2020
    Date of Patent: August 20, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Won Ho Lee, Hyun Deok Im, Jong Hyuk Kang, Jin Oh Kwag, Keun Kyu Song, Sung Chan Jo, Hyun Min Cho
  • Patent number: 12062739
    Abstract: A display device includes a first electrode, a second electrode spaced apart from the first electrode to face the first electrode, a first insulation layer, at least one light emitting element, a second insulation layer, a first contact electrode, and a second contact electrode. The first insulation layer includes an overlapping area which overlaps the at least one light emitting element, a first non-overlapping area which extends outward from the first end of the at least one light emitting element and does not overlap the at least one light emitting element, and a second non-overlapping area which extends outward from the second end of the at least one light emitting element and does not overlap the at least one light emitting element.
    Type: Grant
    Filed: January 3, 2019
    Date of Patent: August 13, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Dae Hyun Kim, Hyun Min Cho, Jin Oh Kwag, Keun Kyu Song, Sung Chan Jo
  • Patent number: 12027508
    Abstract: A display device may include: a substrate including a display area and a non-display area; and pixels disposed on the display area, and each including sub-pixels, each sub-pixel including a pixel circuit layer, and a display element layer including a light emitting element. The display element layer includes first and second electrodes spaced apart from each other; a first insulating layer disposed between the pixel circuit layer and the light emitting element; and a second insulating layer disposed on the light emitting element and filling spaces between the first insulating layer and ends of the light emitting element. The light emitting element includes a first conductive semiconductor layer, an active layer enclosing at least one side of the first conductive semiconductor layer, a second conductive semiconductor layer enclosing the active layer, an electrode layer enclosing the second conductive semiconductor layer, and an insulating film covering the electrode layer.
    Type: Grant
    Filed: March 21, 2019
    Date of Patent: July 2, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Je Won Yoo, Dae Hyun Kim, Bek Hyun Lim, Myeong Hee Kim, Chang Il Tae, Hyun Min Cho, Keun Kyu Song, Jin Oh Kwag
  • Patent number: 12026426
    Abstract: A display device including a display panel including a substrate and a pixel array layer disposed on a first surface of the substrate, a sound generation device disposed on a second surface of the substrate opposite to the first surface of the substrate, and a circuit board disposed on the second surface of the substrate, in which the circuit board includes a first hole overlapping the sound generation device.
    Type: Grant
    Filed: March 1, 2023
    Date of Patent: July 2, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Byeong Hee Won, Keun Kyu Song, Yi Joon Ahn, Sung Chan Jo
  • Patent number: 11984470
    Abstract: A light-emitting diode includes a first semiconductor region having a first conductive type; a second semiconductor region having a second conductive type; and an active layer disposed between the first semiconductor region and the second semiconductor region and including phosphorus (P). The light-emitting diode has a rod shape, the second semiconductor region includes a first semiconductor layer, a second semiconductor layer, and a third semiconductor layer, which are sequentially stacked, the first semiconductor layer is disposed between the active layer and the second semiconductor layer, and the second semiconductor layer includes a compound represented by AlGaInP and satisfying Equation 1.
    Type: Grant
    Filed: December 5, 2019
    Date of Patent: May 14, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Keun Kyu Song, Jung Hong Min, Dae Hyun Kim, Dong Uk Kim, Hyun Min Cho
  • Patent number: 11935986
    Abstract: A display device may include: a substrate including a display area and a non-display area; and pixels in the display area, and each including sub-pixels. Each sub-pixel may include a pixel circuit layer, and a display element layer including at least one light emitting element. The display element layer may include: a first electrode on the pixel circuit layer; a second electrode on the first electrode and electrically insulated from the first electrode; the light emitting element including a first end portion coupled to the first electrode and a second end portion coupled to the second electrode, and between the first electrode and the second electrode; an intermediate layer enclosing at least one area of the light emitting element, and on the first electrode; a connection line electrically connected to the second electrode. The second electrode may be on the intermediate layer.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: March 19, 2024
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong Uk Kim, Jin Oh Kwag, Keun Kyu Song, Sung-Chan Jo, Hyun Min Cho
  • Publication number: 20240088198
    Abstract: A display device comprises a first electrode, a second electrode disposed to be spaced apart from the first electrode and face the first electrode, a first insulating layer disposed to cover the first electrode and the second electrode, a second insulating layer disposed on at least a part of the first insulating layer and exposing at a part of a region where the first electrode and the second electrode overlaps the first insulating layer and at least one light emitting element on the exposed first insulating layer between the first electrode and the second electrode, wherein the second insulating layer includes at least one opening exposing the first insulating layer and disposed to be spaced apart from each other on a region where the first electrode and the second electrode face each other, and a bridge portion between the openings, and the light emitting element is disposed on the opening.
    Type: Application
    Filed: November 13, 2023
    Publication date: March 14, 2024
    Inventors: Hyun Min CHO, Dae Hyun KIM, Jin Oh KWAG, Dong Hyun KIM, Keun Kyu SONG, Hyun Deok IM, Sung Chan JO