Patents by Inventor IN GYU JANG

IN GYU JANG 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: 11563052
    Abstract: A light emitting diode (LED) pixel for a display including a substrate, a first LED stack disposed on the substrate, a second LED stack disposed on the first LED stack, a third LED stack disposed on the second LED stack, and through-hole vias formed through the substrate, in which each of the first, second, and third LED stacks includes a first conductivity type semiconductor layer and a second conductivity type semiconductor layer, and each of the through-hole vias is electrically connected to at least one of the first, second, and third LED stacks.
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: January 24, 2023
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Hyeon Chae, Chung Hoon Lee, Seong Gyu Jang, Chang Yeon Kim, Ho Joon Lee
  • Patent number: 11557577
    Abstract: A light emitting diode pixel for a display including a first subpixel comprising a first LED sub-unit, a second subpixel comprising a second LED sub-unit, and a third subpixel comprising a third LED sub-unit, in which each of the first, second, and third LED sub-units includes a first type of semiconductor layer and a second type of semiconductor layer, and the first, second, and third LED sub-units are separated from each other in a first direction, disposed at different planes from each other, and do not overlap each other in the first direction.
    Type: Grant
    Filed: August 7, 2020
    Date of Patent: January 17, 2023
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Seong Gyu Jang, Ho Joon Lee, Jong Hyeon Chae, Chung Hoon Lee
  • Patent number: 11552061
    Abstract: A light emitting device for a display including a first LED sub-unit, a second LED sub-unit disposed on the first LED sub-unit, a third LED sub-unit disposed on the second LED sub-unit, electrode pads disposed under the first LED sub-unit, each of the electrode pads being electrically connected to at least one of the first, second, and third LED sub-units, and lead electrodes electrically connected to the electrode pads and extending outwardly from the first LED sub-unit.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: January 10, 2023
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Hyeon Chae, Ho Joon Lee, Seong Gyu Jang
  • Patent number: 11552057
    Abstract: A light emitting device for a display includes first LED sub-unit, second LED, and third LED sub-units, an insulating layer substantially covering the first, second, and third LED sub-units, and electrode pads electrically connected to the first, second, and third LED sub-units, in which the first LED sub-unit is disposed on a partial region of the second LED sub-unit, the second LED sub-unit is disposed on a partial region of the third LED sub-unit, the insulating layer has openings for electrical connection between the electrode pads, a common electrode pad is connected to the first, second, and third LED sub-units through the openings in the insulating layer, first, second, and third electrode pads are connected to the first, second, and third LED sub-units, respectively, through at least one of the openings, and the first, second, and third LED sub-units are configured to be independently driven using the electrode pads.
    Type: Grant
    Filed: November 22, 2018
    Date of Patent: January 10, 2023
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Hyeon Chae, Chang Yeon Kim, Seong Gyu Jang, Ho Joon Lee, Jong Min Jang, Dae Sung Cho
  • Publication number: 20220406892
    Abstract: A semiconductor device is provided.
    Type: Application
    Filed: March 31, 2022
    Publication date: December 22, 2022
    Inventors: SU JIN JUNG, JIN BUM KIM, DA HYE KIM, IN GYU JANG, DONG SUK SHIN
  • Publication number: 20220407178
    Abstract: Provided area an apparatus and a method for improving the foldability of a separator interposed between polar plates in prismatic secondary battery cell manufacturing equipment. Provided are an assembly and a method for improving the foldability of a separator, the assembly including a wheel knife capable of moving in a horizontal direction with respect to the supply direction of the separator on the prismatic secondary battery cell manufacturing equipment, wherein the wheel knife can rotate with respect to the center thereof, and, when the wheel knife moves on the separator, a recessed part is formed on the separator along the movement path thereof.
    Type: Application
    Filed: April 27, 2020
    Publication date: December 22, 2022
    Inventors: Hyuk SHIN, Seung Gyu JANG, Jin Il HWANG
  • Patent number: 11532664
    Abstract: A light emitting diode (LED) stack for a display including a first LED sub-unit configured to emit a first colored light, a second LED sub-unit disposed on the first LED sub-unit and configured to emit a second colored light, and a third LED sub-unit disposed on at least one of the first LED sub-unit and the second LED sub-unit and configured to emit a third colored light, in which the first LED sub-unit is configured to emit light through the second LED sub-unit and the third LED sub-unit, and the second LED sub-unit is configured to emit light through the third LED sub-unit.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: December 20, 2022
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Hyeon Chae, Chung Hoon Lee, Seong Gyu Jang, Chang Yeon Kim, Ho Joon Lee
  • Publication number: 20220399399
    Abstract: A display device including a substrate, a light emitting stacked structure disposed on the substrate and including a plurality of epitaxial sub-units disposed one over another, a first adhesive layer bonding the epitaxial sub-units to the substrate; and a line part disposed on the substrate and configured to apply a light emitting signal to each of the epitaxial sub-units, in which the light emitting stacked structure is configured to provide light having various colors by a combination of light emitted from each of the epitaxial sub-units, the first adhesive layer includes a conductive and non-transparent material, and the substrate includes a non-transparent material.
    Type: Application
    Filed: June 22, 2022
    Publication date: December 15, 2022
    Inventors: Chung Hoon LEE, Jong Hyeon CHAE, Seong Gyu JANG, Ho Joon LEE
  • Patent number: 11527519
    Abstract: A light emitting device for a display including a first substrate, a first LED sub-unit disposed on the first substrate, a second LED sub-unit disposed on the first LED sub-unit, a third LED sub-unit disposed on the second LED sub-unit, a second substrate disposed on the third LED sub-unit, a first electrode pad, a second electrode pad, a third electrode pad, and a fourth electrode pad disposed on the second substrate, and through-hole vias electrically connecting the second, third, and fourth electrode pads to the first, second, and third LED sub-units, respectively, in which the first electrode pad is electrically connected to the first LED sub-unit without overlapping any through-hole vias.
    Type: Grant
    Filed: November 22, 2018
    Date of Patent: December 13, 2022
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Hyeon Chae, Chung Hoon Lee, Chang Yeon Kim, Seong Gyu Jang, Ho Joon Lee, Jong Min Jang
  • Patent number: 11527514
    Abstract: A light emitting device for a display includes a pixel region including first, second, and third LED stacks, an adhesive layer disposed between the first and second LED stacks, or between the second and third LED stacks, a metal bonding layer at least partially surrounded by the adhesive layer, and disposed between and is electrically connected to the first and second LED stacks, or the second and third LED stacks, and a common electrode pad connected to the first, second, and third LED stacks, first, second, and third electrode pads connected to the first, second, and third LED stacks, respectively, and the first, second, and third LED stacks are configured to be independently driven using the electrode pads.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: December 13, 2022
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Hyeon Chae, Chang Yeon Kim, Seong Gyu Jang, Ho Joon Lee, Jong Min Jang, Dae Sung Cho
  • Patent number: 11526060
    Abstract: The present disclosure relates to a display device including a substrate, a gate line on the substrate, a data line crossing the gate line, a pixel connected to the gate line and the data line, and a dummy data line disposed at an edge on the substrate and crossing the gate line, wherein the dummy data line includes openings that is disposed on a portion that is near an overlapping portion with the gate line, and portions of the dummy data line separated by the openings are electrically insulated from each other.
    Type: Grant
    Filed: October 9, 2020
    Date of Patent: December 13, 2022
    Inventors: Gwon-Heon Ryu, Yang Gyu Jang, Kook Hyun Choi, Beom Jun Kim, Hyung Gi Jung
  • Patent number: 11527513
    Abstract: A light emitting device for a display including a plurality of pixel regions defined between at least one separation region disposed between the pixel regions, and a barrier disposed in the separation region, in which each of the pixel regions includes a first LED stack, a second LED stack disposed on the first LED stack, a third LED stack disposed on the second LED stack, and electrode pads electrically connected to the first, second, and third LED stacks, the electrode pads comprising a common electrode pad, a first electrode pad, a second electrode pad, and a third electrode pad, the common electrode pad is connected to the first, second, and third LED stacks, the first, second, and third electrode pads are connected to the first, second, and third LED stacks, respectively, and the first, second, and third LED stacks are configured to be independently driven using the electrode pads.
    Type: Grant
    Filed: November 4, 2019
    Date of Patent: December 13, 2022
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Hyeon Chae, Chang Yeon Kim, Seong Gyu Jang, Ho Joon Lee, Jong Min Jang, Dae Sung Cho
  • Publication number: 20220393063
    Abstract: A light emitting chip including a light emitting structure including first, second, and third light emitting sub-units to emit light of a first color, a second color, and a third color and vertically stacked on each other, and having at least one mesa structure and at least one sidewall having a stepped structure; a plurality of vias electrically connected to the light emitting sub-units, each via has a top surface exposed from the light emitting structure and a bottom surface contacting the light emitting structure, a part of the bottom surfaces of the vias disposed on substantially the same level; and a first passivation layer covering at least a part of the light emitting structure, in which the first passivation layer has a bottom surface exposing the light emitting structure to permit light from the first, second, and third sub-units to be emitted from the light emitting chip.
    Type: Application
    Filed: June 22, 2022
    Publication date: December 8, 2022
    Inventors: Chang Yeon KIM, Jong Hyeon CHAE, Chung Hoon LEE, Seong Gyu JANG, Jong Min JANG, Ho Joon LEE
  • Publication number: 20220392950
    Abstract: A display apparatus including a thin film transistor (TFT) substrate; a first LED sub-unit, a second LED sub-unit, and a third LED sub-unit; first, second, third, and fourth electrode pads disposed between the TFT substrate and the first LED sub-unit; and connectors connecting the first, second, and third LED sub-units to a respective one of the electrode pads, in which the first, second, and third sub-units are configured to be independently driven; light generated from the first LED sub-unit is emitted to the outside of the display apparatus by passing through the second and third LED sub-units; light generated from the second LED sub-unit is emitted to the outside of the display apparatus by passing through the third LED sub-unit; and at least one of the connectors includes a first portion electrically connecting a first surface of the first LED sub-unit to the second electrode pad.
    Type: Application
    Filed: June 22, 2022
    Publication date: December 8, 2022
    Inventors: Jong Hyeon CHAE, Seong Gyu JANG, Ho Joon LEE, Chang Yeon KIM, Chung Hoon LEE
  • Publication number: 20220392879
    Abstract: A light emitting device including a first LED sub-unit having a thickness in a first direction, a second LED sub-unit disposed on a portion of the first LED sub-unit in the first direction, each of the first and second LED sub-units comprising a first-type semiconductor layer, a second-type semiconductor layer, and an active layer, a reflective electrode disposed adjacent to the first LED sub-unit and electrically connected to the first-type semiconductor layer of the first LED sub-unit, and a first ohmic electrode forming ohmic contact with the second-type semiconductor layer of the first LED sub-unit, in which the active layer of the first LED sub-unit is configured to generate light, includes AlxGa(1-x-y)InyP (0?x?1, 0?y?1), and overlaps the active layer of the second LED sub-unit in the first direction, and the active layer of the second LED sub-unit includes the same material as the active layer of the first LED sub-unit.
    Type: Application
    Filed: June 20, 2022
    Publication date: December 8, 2022
    Inventors: Jong Hyeon CHAE, Chang Yeon Kim, Ho Joon Lee, Seong Gyu Jang, Chung Hoon Lee, Dae Sung Cho
  • Patent number: 11522006
    Abstract: A light emitting stacked structure including a plurality of epitaxial sub-units disposed one over another, each of the epitaxial sub-units configured to emit different colored light, in which each epitaxial sub-unit has a light emitting area that overlaps one another, and at least one epitaxial sub-unit has an area different from the area of another epitaxial sub-unit.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: December 6, 2022
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Chung Hoon Lee, Jong Hyeon Chae, Seong Gyu Jang, Ho Joon Lee
  • Publication number: 20220367424
    Abstract: A display device comprises first banks disposed on a substrate and spaced apart from each other in a first direction; a first electrode and a second electrode disposed on the first banks; a light emitting diode disposed between the first electrode and the second electrode; and at least one reflective structure disposed between the first electrode and the second electrode and spaced apart from the light emitting diode. The light emitting diode and the at least one reflective structure are spaced apart from each other in a second direction intersecting the first direction.
    Type: Application
    Filed: April 20, 2022
    Publication date: November 17, 2022
    Applicant: Samsung Display Co., LTD.
    Inventors: Hyun Deok IM, Jong Hyuk KANG, Yang Gyu JANG, Eun A CHO
  • Patent number: 11502230
    Abstract: A light emitting device including first, second, and third light emitting parts disposed one over another and each including a first-type semiconductor layer, an active layer, and a second-type semiconductor layer, a first conductive pattern at least partially disposed between the second and third light emitting parts, the first conductive pattern including a first portion electrically coupled with at least one of the first-type and second-type semiconductor layers of the first and second light emitting parts, and a second portion extending from the first portion and disposed on one surface of the second light emitting part between the second and third light emitting parts, and a second conductive pattern disposed on the third light emitting part and electrically coupled with the first conductive pattern, in which the second conductive pattern at least partially overlaps with the second portion of the first conductive pattern.
    Type: Grant
    Filed: October 30, 2019
    Date of Patent: November 15, 2022
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Seong Gyu Jang, Chan Seob Shin, Seom Geun Lee, Ho Joon Lee, Jong Hyeon Chae
  • Patent number: 11489003
    Abstract: A light emitting stacked structure including a plurality of epitaxial sub-units disposed one over another, each of the epitaxial sub-units configured to emit different colored light, in which each epitaxial sub-unit has a light emitting area that overlaps one another, and at least one epitaxial sub-unit has an area different from the area of another epitaxial sub-unit.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: November 1, 2022
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Chung Hoon Lee, Jong Hyeon Chae, Seong Gyu Jang, Ho Joon Lee
  • Patent number: 11476298
    Abstract: A light emitting diode (LED) stack for a display including a first LED sub-unit configured to emit a first colored light, a second LED sub-unit disposed on the first LED sub-unit and configured to emit a second colored light, and a third LED sub-unit disposed on at least one of the first LED sub-unit and the second LED sub-unit and configured to emit a third colored light, in which the first LED sub-unit is configured to emit light through the second LED sub-unit and the third LED sub-unit, and the second LED sub-unit is configured to emit light through the third LED sub-unit.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: October 18, 2022
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Hyeon Chae, Chung Hoon Lee, Seong Gyu Jang, Chang Yeon Kim, Ho Joon Lee