Patents by Inventor Jeongkyun NA

Jeongkyun NA 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: 9969047
    Abstract: A substrate polishing apparatus includes a support part on which at least one substrate is disposed, a plurality of first moving parts disposed at both opposite sides of the support part in a second direction crossing a first direction, and configured to upwardly extend and reciprocate in the first direction, a second moving part disposed between the plurality of first moving parts in the second direction and connected to an upper side of the first moving parts, a plurality of polishing units disposed at a lower portion of the second moving part and configured to contact an upper surface of the substrate, and a plurality of nozzles disposed at the lower portion of the second moving part and configured to spray slurry to the substrate where the polishing units rotate and revolve along a predetermined trajectory.
    Type: Grant
    Filed: April 26, 2016
    Date of Patent: May 15, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Joowoan Cho, Hyunjin Cho, Byoungkwon Choo, Oleg Prudnikov, Jeongkyun Na, Sanghoon Ahn, Seunghwan Lee, Byoungho Cheong
  • Patent number: 9939695
    Abstract: A display panel includes a display panel having a curved shape and a printed circuit hoard (PCB). At least one carrier connects the display panel and the PCB. At least one driving integrated circuit (driving IC) is disposed on each carrier. Each carrier includes a body and at least one connector extending from the body. Each connector is spaced apart from each other connector.
    Type: Grant
    Filed: June 16, 2015
    Date of Patent: April 10, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Joowoan Cho, Jeongkyun Na, Seunghwan Lee, Byoungho Cheong
  • Patent number: 9786499
    Abstract: A method of manufacturing a substrate includes: irradiating, along a first path, a laser beam emitted from a source onto a substrate, wherein the substrate includes a target layer of the laser beam, and wherein the substrate is disposed on a stage; and irradiating, along a second path, a portion the laser beam, which was emitted from the source and reached the target layer, by reflecting the laser beam back onto the target layer using a reflection mirror. An area of a second region of the target layer is greater than an area of a first region of the target layer, wherein the laser beam is irradiated along the second path in the second region, and the laser beam is irradiated along the first path in the first region.
    Type: Grant
    Filed: March 16, 2017
    Date of Patent: October 10, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Joowoan Cho, Byoungho Cheong, Byoungkwon Choo, Jeongkyun Na, Sanghoon Ahn, Hyunjin Cho
  • Publication number: 20170186610
    Abstract: A method of manufacturing a substrate includes: irradiating, along a first path, a laser beam emitted from a source onto a substrate, wherein the substrate includes a target layer of the laser beam, and wherein the substrate is disposed on a stage; and irradiating, along a second path, a portion the laser beam, which was emitted from the source and reached the target layer, by reflecting the laser beam back onto the target layer using a reflection mirror. An area of a second region of the target layer is greater than an area of a first region of the target layer, wherein the laser beam is irradiated along the second path in the second region, and the laser beam is irradiated along the first path in the first region.
    Type: Application
    Filed: March 16, 2017
    Publication date: June 29, 2017
    Inventors: JOOWOAN CHO, BYOUNGHO CHEONG, BYOUNGKWON CHOO, JEONGKYUN NA, SANGHOON AHN, HYUNJIN CHO
  • Patent number: 9633845
    Abstract: A method of manufacturing a substrate includes: irradiating, along a first path, a laser beam emitted from a source onto a substrate, wherein the substrate includes a target layer of the laser beam, and wherein the substrate is disposed on a stage; and irradiating, along a second path, a portion the laser beam, which was emitted from the source and reached the target layer, by reflecting the laser beam back onto the target layer using a reflection mirror. An area of a second region of the target layer is greater than an area of a first region of the target layer, wherein the laser beam is irradiated along the second path in the second region, and the laser beam is irradiated along the first path in the first region.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: April 25, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Joowoan Cho, Byoungho Cheong, Byoungkwon Choo, Jeongkyun Na, Sanghoon Ahn, Hyunjin Cho
  • Publication number: 20160318149
    Abstract: A substrate polishing apparatus includes a support part on which at least one substrate is disposed, a plurality of first moving parts disposed at both opposite sides of the support part in a second direction crossing a first direction, and configured to upwardly extend and reciprocate in the first direction, a second moving part disposed between the plurality of first moving parts in the second direction and connected to an upper side of the first moving parts, a plurality of polishing units disposed at a lower portion of the second moving part and configured to contact an upper surface of the substrate, and a plurality of nozzles disposed at the lower portion of the second moving part and configured to spray slurry to the substrate where the polishing units rotate and revolve along a predetermined trajectory.
    Type: Application
    Filed: April 26, 2016
    Publication date: November 3, 2016
    Inventors: Joowoan CHO, Hyunjin CHO, Byoungkwon CHOO, Oleg PRUDNIKOV, Jeongkyun NA, Sanghoon AHN, Seunghwan LEE, Byoungho CHEONG
  • Patent number: 9460922
    Abstract: A method of manufacturing a display apparatus includes forming an amorphous silicon layer on a substrate, splitting a first laser beam emitted from a first laser source into a first master beam in a first polarization state and a second master beam in a second polarization state, changing the first polarization state of the first master beam to the second polarization state to output a third master beam having the second polarization state and corresponding to the first master beam having the second polarization state, combining the second master beam with the third master beam to output a merged laser beam, and irradiating the amorphous silicon layer with the merged laser beam to form a polysilicon layer.
    Type: Grant
    Filed: November 10, 2015
    Date of Patent: October 4, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sanghoon Ahn, Byoungkwon Choo, Byoungho Cheong, Jeongkyun Na, Seung Hwan Lee, Joowoan Cho, Hyunjin Cho, Oleg Prudnikov
  • Publication number: 20160284546
    Abstract: A method of manufacturing a substrate includes: irradiating, along a first path, a laser beam emitted from a source onto a substrate, wherein the substrate includes a target layer of the laser beam, and wherein the substrate is disposed on a stage; and irradiating, along a second path, a portion the laser beam, which was emitted from the source and reached the target layer, by reflecting the laser beam back onto the target layer using a reflection mirror. An area of a second region of the target layer is greater than an area of a first region of the target layer, wherein the laser beam is irradiated along the second path in the second region, and the laser beam is irradiated along the first path in the first region.
    Type: Application
    Filed: September 17, 2015
    Publication date: September 29, 2016
    Inventors: Joowoan Cho, Byoungho Cheong, Byoungkwon Choo, Jeongkyun Na, Sanghoon Ahn, Hyunjin Cho
  • Publication number: 20160091746
    Abstract: A display panel includes a display panel having a curved shape and a printed circuit hoard (PCB). At least one carrier connects the display panel and the PCB. At least one driving integrated circuit (driving IC) is disposed on each carrier. Each carrier includes a body and at least one connector extending from the body. Each connector is spaced apart from each other connector.
    Type: Application
    Filed: June 16, 2015
    Publication date: March 31, 2016
    Inventors: Joowoan CHO, Jeongkyun NA, Seunghwan LEE, Byoungho CHEONG