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: 20210280746
    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: January 3, 2019
    Publication date: September 9, 2021
    Applicant: Samsung Display Co., LTD.
    Inventors: Dae Hyun KIM, Hyun Min CHO, Jin Oh KWAG, Keun Kyu SONG, Sung Chan JO
  • Publication number: 20210280753
    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: September 20, 2018
    Publication date: September 9, 2021
    Inventors: Dae Hyun KIM, Hyun Min CHO, Keun Kyu SONG, Je Won YOO, Bek Hyun LIM, Sung Chan JO
  • Publication number: 20210273131
    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: Application
    Filed: June 10, 2019
    Publication date: September 2, 2021
    Applicant: 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: 20210265419
    Abstract: A display device includes a first pixel and a second pixel; a light emitting layer; a color conversion layer on the light emitting layer; and a color filter layer on the color conversion layer, the light emitting layer including one or more light emitting elements in the first pixel and the second pixel, the color conversion layer including a first color conversion layer in the first pixel and a second color conversion layer in the second pixel. The color filter layer includes a first color filter layer in the first pixel and a second color filter layer in the second pixel, the light emitting elements capable of emitting a first light having a first wavelength, each of the first color conversion layer and the second color conversion layer including first color conversion particles and second color conversion particles.
    Type: Application
    Filed: May 10, 2021
    Publication date: August 26, 2021
    Inventors: Dong Uk KIM, Hyun Min CHO, Keun Kyu SONG, Dae Hyun KIM, Jung Hong MIN, Seung A LEE, Hyung Rae CHA
  • Publication number: 20210242380
    Abstract: A light emitting device may include: a substrate including a plurality of unit light emitting regions; and first to fourth insulating layers sequentially on the substrate. Each of the unit light emitting regions may include: at least one light emitting element on the first insulating layer, the at least one light emitting element including a first end portion and a second end portion in a length direction thereof; first and second banks on the substrate; a first electrode on the first bank and a second electrode on the second bank; a first contact electrode on the first electrode; a second contact electrode on the second electrode; and a conductive pattern provided between the first insulating layer and the first contact electrode, the conductive pattern surrounding the first and second electrodes when viewed on a plane.
    Type: Application
    Filed: September 27, 2018
    Publication date: August 5, 2021
    Inventors: Dae Hyun KIM, Hyun Min CHO, Hyun Deok IM, Jong Hyuk KANG, Keun Kyu SONG, Joo Yeol LEE, Bek Hyun LIM, SUNG-CHAN JO
  • Patent number: 11079792
    Abstract: A display device incudes: a display panel; a plurality of vibro-acoustic elements coupled to the display panel and spaced apart from each other on a lower surface of the display panel; and a bracket disposed below the display panel and including a bottom plate, where a plurality of receiving holes is defined through the bottom plate. The plurality of vibro-acoustic elements is disposed in the plurality of receiving holes, respectively, a vibration space is defined by a portion of the bottom plate defining a receiving hole of the receiving holes, which is recessed from an upper surface toward a lower surface of the bottom plate, and audio frequencies in different frequency bands, respectively, is produced from regions in which the plurality of vibro-acoustic elements are disposed.
    Type: Grant
    Filed: May 29, 2020
    Date of Patent: August 3, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yi Joon Ahn, Sung Chul Kim, Jung Hun Noh, Keun Kyu Song, Hye Yong Chu
  • Publication number: 20210233937
    Abstract: A transistor structure may include a first electrode, a second electrode, a third electrode, a substrate, and a semiconductor member. The semiconductor member overlaps the third electrode and includes a first semiconductor portion, a second semiconductor portion, and a third semiconductor portion. The first semiconductor portion directly contacts the first electrode, is directly connected to the third semiconductor portion, and is connected through the third semiconductor portion to the second semiconductor portion. The second semiconductor portion directly contacts the second electrode and is directly connected to the third semiconductor portion. A minimum distance between the first semiconductor portion and the substrate is unequal to a minimum distance between the second semiconductor portion and the substrate.
    Type: Application
    Filed: April 14, 2021
    Publication date: July 29, 2021
    Inventors: Hyun Sup LEE, Jung Hun NOH, Keun Kyu SONG, Sang Hee JANG, Byung Seok CHOI
  • Patent number: 11074858
    Abstract: A display device includes: a substrate; a display element layer on one surface of the substrate and including at least one light emitting element emitting light; and a pixel circuit portion on the display element layer and including at least one transistor electrically connected to the light emitting element, wherein the display element layer includes: a first electrode on the substrate and electrically connected to one end of the light emitting element; a second electrode on the substrate and electrically connected to the other end of the light emitting element; and an insulation layer on the substrate including the second electrode, and having a first opening exposing a portion of the second electrode, and wherein the second electrode is electrically connected to the transistor through the first opening.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: July 27, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun Min Cho, Sung Chul Kim, Dae Hyun Kim, Hye Yong Chu, Jong Hyuk Kang, Keun Kyu Song, Joo Yeol Lee, Bek Hyun Lim, Hyun Deok Im
  • Publication number: 20210226165
    Abstract: A light emitting element and a display device including the same are provided. 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, a protective layer surrounding an outer surface of at least one of the first semiconductor layer, the second semiconductor layer, and the active layer, and an insulating layer surrounding an outer surface of the protective layer. A surface of at least one of the first semiconductor layer, the second semiconductor layer, and the active layer includes a first lattice point, wherein the protective layer includes a first atom and a second atom, and wherein the first atom of the protective layer is at the first lattice point.
    Type: Application
    Filed: September 24, 2020
    Publication date: July 22, 2021
    Inventors: Yun Hyuk KO, Chang Hee LEE, Jin Oh KWAG, Keun Kyu SONG, Yun Ku JUNG, Sung-Chan JO, Jae Kook HA
  • Patent number: 11064276
    Abstract: A panel bottom member includes a light absorbing member, a top bonding layer which is positioned at the top of the light absorbing member, a first vibration sound element which is positioned below the light absorbing member and bonded to the light absorbing member, a buffer member which is positioned below the light absorbing member and does not overlap with the first vibration sound element, and an interlayer bonding layer which is positioned between the light absorbing member and the buffer member.
    Type: Grant
    Filed: March 30, 2018
    Date of Patent: July 13, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yi Joon Ahn, Sung Chul Kim, Jung Hun Noh, Keun Kyu Song, Hye Yong Chu
  • Patent number: 11004870
    Abstract: A transistor structure may include a first electrode, a second electrode, a third electrode, a substrate, and a semiconductor member. The semiconductor member overlaps the third electrode and includes a first semiconductor portion, a second semiconductor portion, and a third semiconductor portion. The first semiconductor portion directly contacts the first electrode, is directly connected to the third semiconductor portion, and is connected through the third semiconductor portion to the second semiconductor portion. The second semiconductor portion directly contacts the second electrode and is directly connected to the third semiconductor portion. A minimum distance between the first semiconductor portion and the substrate is unequal to a minimum distance between the second semiconductor portion and the substrate.
    Type: Grant
    Filed: March 29, 2017
    Date of Patent: May 11, 2021
    Inventors: Hyun Sup Lee, Jung Hun Noh, Keun Kyu Song, Sang Hee Jang, Byung Seok Choi
  • Patent number: 11004892
    Abstract: A display device includes a first pixel and a second pixel; a light emitting layer; a color conversion layer on the light emitting layer; and a color filter layer on the color conversion layer, the light emitting layer including one or more light emitting elements in the first pixel and the second pixel, the color conversion layer including a first color conversion layer in the first pixel and a second color conversion layer in the second pixel. The color filter layer includes a first color filter layer in the first pixel and a second color filter layer in the second pixel, the light emitting elements capable of emitting a first light having a first wavelength, each of the first color conversion layer and the second color conversion layer including first color conversion particles and second color conversion particles.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: May 11, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Dong Uk Kim, Hyun Min Cho, Keun Kyu Song, Dae Hyun Kim, Jung Hong Min, Seung A Lee, Hyung Rae Cha
  • Patent number: 10990139
    Abstract: A display device includes a display panel, a vibration sound device disposed below the display panel, a lower panel sheet disposed adjacent to the vibration sound device below the display panel and including a functional layer and a bottom coupling layer disposed on a lower surface of the functional layer, and a bracket disposed below the vibration sound device and the lower panel sheet and coupled with the bottom coupling layer, wherein the bottom coupling layer partially exposes the lower surface of the functional layer, a separation space is defined between the bracket and the lower surface of the functional layer where the bottom coupling layer is exposed, and the separation space is partially connected with the vibration sound device.
    Type: Grant
    Filed: November 29, 2018
    Date of Patent: April 27, 2021
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jung Hun Noh, Yi Joon Ahn, Myung Im Kim, Keun Kyu Song, Jae Woo Im
  • Publication number: 20210011681
    Abstract: A display device including a display panel including a first substrate and a pixel array layer disposed on a first surface of the first substrate, a first sound generation device disposed on a second surface of the first substrate opposing the first surface, and configured to vibrate the display panel and output first sound, and a circuit board disposed on the second surface of the first substrate, in which the first sound generation device includes a bobbin fixed on one surface of the first substrate, a voice coil surrounding a side surface of the bobbin, a magnet disposed on the bobbin and spaced apart from the bobbin, and a plate disposed on the magnet and fixed to the circuit board.
    Type: Application
    Filed: April 19, 2020
    Publication date: January 14, 2021
    Inventors: Byeong Hee WON, Keun Kyu SONG, Yi Joon AHN, Sung Chan JO
  • Patent number: 10877585
    Abstract: A display device includes a display panel, a touch sensing member which is disposed on the display panel and comprises a touch sensing area and a vibration area disposed around the touch sensing area and generating vibrations in response to a first audio signal, and a window which is disposed on the touch sensing member and outputs sound in response to the vibrations generated in the vibration area.
    Type: Grant
    Filed: May 7, 2018
    Date of Patent: December 29, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Jung Hun Noh, Sung Chul Kim, Keun Kyu Song, Yi Joon Ahn, Hye Yong Chu
  • Publication number: 20200402453
    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: Application
    Filed: September 4, 2020
    Publication date: December 24, 2020
    Inventors: Hyun Min CHO, Dae Hyun KIM, Sung Chul KIM, Hye Yong CHU, Keun Kyu SONG
  • Patent number: 10803790
    Abstract: A display device includes a plurality of data lines to supply data voltages, a plurality of scan lines to supply scan signals, and a first pixel connected to at least one of the plurality of data lines, and connected to at least one of the plurality of scan lines, the first pixel including a first light-emitting diode of a first color, in which an anode is connected to a first node and a cathode is connected to a reference voltage line, and a second light-emitting diode of a second color that is different from the first color, in which an anode is connected to the reference voltage line, and a cathode is connected to the first node.
    Type: Grant
    Filed: November 14, 2018
    Date of Patent: October 13, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Hyun Min Cho, Sung Chul Kim, Hye Yong Chu, Jong Hyuk Kang, Dae Hyun Kim, Keun Kyu Song, Hyun Deok Im
  • Patent number: 10788721
    Abstract: A liquid crystal display is provided. A liquid crystal display comprising: an insulating substrate, a plurality of pixels disposed on the insulating substrate, and a display area in which the pixels are arranged in rows and columns, wherein four pixels arranged successively in a row direction form a domain pattern, and the domain pattern is repeated in the row direction and a column direction in the display area, wherein each pixel in first and second rows of the domain pattern has a first domain orientation, and each pixel in third and fourth rows of the domain pattern has a second domain orientation that is different from the first domain orientation.
    Type: Grant
    Filed: July 1, 2019
    Date of Patent: September 29, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sang Hee Jang, Hyun Sup Lee, Jung Hun Noh, Keun Kyu Song, Byung Seok Choi
  • Patent number: D908706
    Type: Grant
    Filed: October 18, 2018
    Date of Patent: January 26, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yi Joon Ahn, Jung Hun Noh, Jae Woo Im, Keun Kyu Song
  • Patent number: D925541
    Type: Grant
    Filed: January 25, 2021
    Date of Patent: July 20, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Yi Joon Ahn, Jung Hun Noh, Jae Woo Im, Keun Kyu Song