Patents by Inventor Jong Hyeon Chae

Jong Hyeon Chae 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: 10804316
    Abstract: A light emitting diode array is provide to include: a substrate; light emitting diodes positioned over the substrate, each including a first semiconductor layer, an active layer, and a second semiconductor layer, wherein each light emitting diode is disposed to form a first via hole structure exposing a portion of the corresponding first semiconductor layer; lower electrodes disposed over the second semiconductor layer; a first interlayer insulating layer disposed over the lower electrodes and configured to expose the portion of the first semiconductor layer of corresponding light emitting diodes; upper electrodes electrically connected to the first semiconductor layer through the first via hole structure, wherein the first via hole structure is disposed in parallel with one side of the corresponding second semiconductor layer and the first interlayer insulating layer is disposed to form a second via hole structure exposing a portion of the lower electrodes.
    Type: Grant
    Filed: December 7, 2017
    Date of Patent: October 13, 2020
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Jong Min Jang, Jong Hyeon Chae, Joon Sup Lee, Daewoong Suh, Hyun A. Kim, Won Young Roh, Min Woo Kang
  • Publication number: 20200321321
    Abstract: A displaying apparatus including: a panel substrate; a plurality of light emitting devices arranged on the panel substrate; and at least one connection tip disposed on one surface of each of the light emitting devices. Each of the light emitting devices includes a light emitting structure including a first conductivity type semiconductor layer, a second conductivity type semiconductor layer, and an active layer interposed between the first and second conductivity type semiconductor layers; and first and second electrode pads disposed on the light emitting structure.
    Type: Application
    Filed: June 17, 2020
    Publication date: October 8, 2020
    Inventors: Motonobu TAKEYA, Seong Su SON, Jong IK LEE, Jae Hee LIM, Jong Hyeon CHAE, Seung Sik HONG
  • Patent number: 10797027
    Abstract: A displaying apparatus including: a panel substrate; a plurality of light emitting devices arranged on the panel substrate; and at least one connection tip disposed on one surface of each of the light emitting devices. Each of the light emitting devices includes a light emitting structure including a first conductivity type semiconductor layer, a second conductivity type semiconductor layer, and an active layer interposed between the first and second conductivity type semiconductor layers; and first and second electrode pads disposed on the light emitting structure.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: October 6, 2020
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Motonobu Takeya, Seong Su Son, Jong Ik Lee, Jae Hee Lim, Jong Hyeon Chae, Seung Sik Hong
  • Publication number: 20200303451
    Abstract: A display apparatus including a thin film transistor (TFT) substrate, a first LED sub-unit disposed on the TFT 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, 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 LED sub-unit, the second LED sub-unit, and the third LED sub-unit are configured to be independently driven, light generated from the first LED sub-unit is configured to be emitted to the outside of the display apparatus by passing through the second LED sub-unit and the third LED sub-unit, and light generated from the second LED sub-unit is configured to be emitted to the outside of the display apparatus by passing through the third LED sub-unit.
    Type: Application
    Filed: June 11, 2020
    Publication date: September 24, 2020
    Inventors: Jong Hyeon CHAE, Seang Gyu JANG, Ho Joon LEE, Chang Yeon KIM, Chung Hoon LEE
  • Patent number: 10784240
    Abstract: A light emitting diode pixel for a display includes a first subpixel, a second subpixel, and a third subpixel, each of the first, second, and third subpixels including a first LED sub-unit including a first type of semiconductor layer and a second type of semiconductor layer, a second LED sub-unit disposed on the first LED sub-unit and including a first type of semiconductor layer and a second type of semiconductor layer, and a third LED sub-unit disposed on the second LED sub-unit and including a first type of semiconductor layer and a second type of semiconductor layer, in which the second and third LED sub-units of the first subpixel are electrically floated, the first and third LED sub-units of the second subpixel are electrically floated, and the first and second LED sub-units of the third subpixel are electrically floated.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: September 22, 2020
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Seong Gyu Jang, Ho Joon Lee, Jong Hyeon Chae, Chung Hoon Lee
  • Patent number: 10784406
    Abstract: A light emitting diode is provided to include a first conductive-type semiconductor layer; a mesa including a second conductive-type semiconductor layer disposed on the first conductive-type semiconductor layer and an active layer interposed between the first and the second conductive-type semiconductor layers; and a first electrode disposed on the mesa, wherein the first conductive-type semiconductor layer includes a first contact region disposed around the mesa along an outer periphery of the first conductive-type semiconductor layer; and a second contact region at least partially surrounded by the mesa, the first electrode is electrically connected to at least a portion of the first contact region and at least a portion of the second contact region, and a linewidth of an adjoining region between the first contact region and the first electrode is greater than the linewidth of an adjoining region between the second contact region and the first electrode.
    Type: Grant
    Filed: February 5, 2020
    Date of Patent: September 22, 2020
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Jong Hyeon Chae, Joon Sup Lee, Daewoong Suh, Won Young Roh, Min Woo Kang, Jong Min Jang, Se Hee Oh, Hyun A Kim
  • Publication number: 20200295232
    Abstract: Provided are a light emitting diode (LED) in which a conductive barrier layer surrounding a reflective metal layer is defined by a protective insulating layer, and a method of manufacturing the same. A reflection pattern including a reflective metal layer and a conductive barrier layer is formed on an emission structure in which a first semiconductor layer, an active layer, and a second semiconductor layer are formed. The conductive barrier layer prevents diffusion of a reflective metal layer and extends to a protective insulating layer recessed under a photoresist pattern having an overhang structure during a forming process. Accordingly, a phenomenon where the conductive barrier layer is in contact with sidewalls of the photoresist pattern having an over-hang structure and the reflective metal layer forms points is prevented. Thus, LED modules having various shapes may be manufactured.
    Type: Application
    Filed: June 1, 2020
    Publication date: September 17, 2020
    Inventors: Jong Hyeon CHAE, Jong Min JANG, Won Young ROH, Dae Woong SUH, Min Woo KANG, Joon Sub LEE, Hyun A. KIM
  • Patent number: 10777604
    Abstract: A light emitting device including first, second, and third LED sub-units, and electrode pads disposed on the first LED sub-unit, electrically connected to the LED sub-units, and including a common electrode pad electrically connected to each of the LED sub-units, and first, second, and third electrode pads connected to a respective one of the LED sub-units, in which the common electrode pad, the second electrode pad, and the third electrode pad are electrically connected to the second LED sub-unit and the third LED sub-unit through holes that pass through the first LED sub-unit, the first, second, and third LED sub-units are configured to be independently driven, light generated in the first LED sub-unit emitted to the outside through the second and third LED sub-units, and light generated in the second LED sub-unit is emitted to the outside through the third LED sub-unit.
    Type: Grant
    Filed: November 22, 2018
    Date of Patent: September 15, 2020
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Hyeon Chae, Seong Gyu Jang, Ho Joon Lee, Chang Yeon Kim, Chung Hoon Lee
  • Patent number: 10756237
    Abstract: A light emitting diode including a first conductive type semiconductor layer, a mesa disposed on the first conductive type semiconductor layer, the mesa including an active layer and a second conductive type semiconductor layer, a reflective electrode disposed on the mesa and configured to be in ohmic-contact with the second conductive type semiconductor layer, a current spreading layer disposed on the mesa and the reflective electrode, the current spreading layer including a first portion configured to be in ohmic-contact with an upper surface of the first conductive type semiconductor layer, a first n-contact region spaced apart from a second n-contact region with the mesa disposed between the first and second n-contact regions, and an insulation layer including a first opening exposing the reflective electrode between the first and second n-contact regions. The first and second n-contact regions have a second opening that exposes the first conductive type semiconductor layer.
    Type: Grant
    Filed: September 16, 2019
    Date of Patent: August 25, 2020
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Hyeon Chae, Jong Min Jang, Won Young Roh, Daewoong Suh, Dae Sung Cho, Joon Sup Lee, Kyu Ho Lee, Chi Hyun In
  • Patent number: 10748881
    Abstract: A light emitting device for a display includes a substrate and first, second, and third LED sub-units, a first transparent electrode between the first and second LED sub-units and in ohmic contact with the first LED sub-unit, a second transparent electrode between the second and third LED sub-units and in ohmic contact with the second LED sub-unit, a third transparent electrode between the second transparent electrode and the third LED sub-unit and in ohmic contact with the third LED sub-unit, at least one current spreader connected to at least one of the first, second, and third LED sub-units, electrode pads disposed on the substrate, and through-hole vias formed through the substrate, in which at least one of the through-hole vias is formed through the substrate and the first and second LED sub-units.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: August 18, 2020
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Chang Yeon Kim, Jong Hyeon Chae, Jong Min Jang, Ho Joon Lee, Seong Gyu Jang
  • Patent number: 10749080
    Abstract: A light emitting diode apparatus includes a substrate, a first conductive type semiconductor layer, a second conductive type semiconductor layer, a mesa, a lower insulating layer, a first pad and a second pad. The substrate has a first surface and a second surface opposite to the first surface. The first conductivity type semiconductor layer is disposed on the first surface of the substrate. The mesa is disposed on the first conductive semiconductor layer and has an active layer and the second conductive semiconductor layer. A peripheral edge of the first conductive semiconductor layer is exposed. The lower insulating layer covers the mesa and the first conductive semiconductor layer and has a plurality of first openings exposing the first conductive semiconductor layer along a peripheral edge of the substrate.
    Type: Grant
    Filed: October 22, 2019
    Date of Patent: August 18, 2020
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Hyeon Chae, Joon Sup Lee, Won Young Roh, Min Woo Kang, Jong Min Jang, Hyun A Kim, Daewoong Suh
  • Publication number: 20200258936
    Abstract: A light emitting device including a substrate, first and second light emitting diodes disposed thereon and including a first semiconductor layer, an active layer, and a second semiconductor layer, a first upper electrode electrically connected to the first semiconductor layer and insulated from the second semiconductor layer of the first light emitting diode, a second upper electrode electrically connected to the first semiconductor layer and insulated from the second semiconductor layer of the second light emitting diode, in which the first and second light emitting diodes are spaced apart from each other to expose the substrate, the first upper electrode has a protrusion electrically connected to the second semiconductor layer of the second light emitting diode and covering portions of the exposed substrate, the first light emitting diode, and the second light emitting diode, and the second upper electrode has a groove.
    Type: Application
    Filed: April 24, 2020
    Publication date: August 13, 2020
    Inventors: Jong Min Jang, Jong Hyeon Chae, Joon Sup Lee, Daewoong Suh, Hyun A Kim, Won Young Roh, Min Woo Kang
  • Patent number: 10741530
    Abstract: A light emitting diode pixel for a display includes a first subpixel, a second subpixel, and a third subpixel, each of the first, second, and third subpixels including a first LED sub-unit including a first type of semiconductor layer and a second type of semiconductor layer, a second LED sub-unit disposed on the first LED sub-unit and including a first type of semiconductor layer and a second type of semiconductor layer, and a third LED sub-unit disposed on the second LED sub-unit and including a first type of semiconductor layer and a second type of semiconductor layer, in which the second and third LED sub-units of the first subpixel are electrically floated, the first and third LED sub-units of the second subpixel are electrically floated, and the first and second LED sub-units of the third subpixel are electrically floated.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: August 11, 2020
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Seong Gyu Jang, Ho Joon Lee, Jong Hyeon Chae, Chung Hoon Lee
  • Patent number: 10727376
    Abstract: Disclosed herein are a light emitting diode package and a method of manufacturing the same. The light emitting diode package includes: a substrate, a light-emitting layer disposed on a surface of the substrate and including a first type semiconductor layer, an active layer, and a second type semiconductor layer, a first bump disposed on the first type semiconductor layer and a second bump disposed the second type semiconductor layer, a protective layer covering at least the light-emitting layer, and a first bump pad and a second bump pad disposed on the protective layer and connected to the first bump and the second bump, respectively.
    Type: Grant
    Filed: September 10, 2018
    Date of Patent: July 28, 2020
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Chi Hyun In, Jun Yong Park, Kyu Ho Lee, Dae Woong Suh, Jong Hyeon Chae, Chang Hoon Kim, Sung Hyun Lee
  • Patent number: 10714459
    Abstract: A light emitting device for a display includes a substrate and first, second, and third LED sub-units, a first transparent electrode between the first and second LED sub-units and in ohmic contact with the first LED sub-unit, a second transparent electrode between the second and third LED sub-units and in ohmic contact with the second LED sub-unit, a third transparent electrode between the second transparent electrode and the third LED sub-unit and in ohmic contact with the third LED sub-unit, at least one current spreader connected to at least one of the first, second, and third LED sub-units, electrode pads disposed on the substrate, and through-hole vias formed through the substrate, in which at least one of the through-hole vias is formed through the substrate and the first and second LED sub-units.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: July 14, 2020
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Chang Yeon Kim, Jong Hyeon Chae, Jong Min Jang, Ho Joon Lee, Seong Gyu Jang
  • Patent number: 10700122
    Abstract: A light emitting diode (LED) stack for a display includes a first LED sub-unit having a first surface and a second surface, a second LED sub-unit disposed on the first surface of the first LED sub-unit, a third LED sub-unit disposed on the second LED sub-unit, a reflective electrode disposed on the second side of the second LED sub-unit and forming ohmic contact with the first LED sub-unit, and an ohmic electrode interposed between the first LED sub-unit and the second LED sub-unit and forming ohmic contact with the first LED sub-unit, in which the second LED sub-unit and the third LED sub-unit are configured to transmit light generated from the first LED sub-unit, and the third LED sub-unit is configured to transmit light generated from the second LED sub-unit.
    Type: Grant
    Filed: November 22, 2018
    Date of Patent: June 30, 2020
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Hyeon Chae, Chung Hoon Lee, Seong Gyu Jang, Chang Yeon Kim, Ho Joon Lee
  • Patent number: 10693043
    Abstract: Disclosed are an LED and an LED module. The LED includes: a first conductivity type semiconductor layer; a mesa disposed over the first conductivity type semiconductor layer and including an active layer and a second conductivity type semiconductor layer; a first ohmic-contact structure in contact with the first conductivity type semiconductor layer; a second ohmic-contact structure in contact with the second conductivity type semiconductor layer; a lower insulating layer at least partially covering the mesa and the first conductivity type semiconductor layer and disposed to form a first opening part at least partially exposing the first ohmic-contact structure and a second opening part at least partially exposing the second ohmic-contact structure; and a current distributing layer connected to the first ohmic-contact structure at least partially exposed by the first opening part and disposed to form a third opening part at least partially exposing the second opening part.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: June 23, 2020
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Jong Hyeon Chae, Won Young Roh, Joon Sup Lee, Min Woo Kang, Jong Min Jang, Hyun A Kim, Seon Min Bae, Daewoong Suh
  • Publication number: 20200185363
    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 below the first LED sub-unit, and a filler disposed between the electrode pads, in which the electrode pads include a common electrode pad electrically connected in common to the first, second, and third LED sub-units, and first, second, and third electrode pads connected to the first, second, and third LED sub-units, respectively, the first, second, and third LED sub-units are independently drivable, light generated in the first LED sub-unit is configured to be emitted to the outside of the light emitting device through the second and third LED sub-units, and light generated in the second LED sub-unit is configured to be emitted to the outside through the third LED sub-unit.
    Type: Application
    Filed: February 13, 2020
    Publication date: June 11, 2020
    Inventors: Chang Yeon KIM, Jong Hyeon CHAE, Jong Min JANG, Ho Joon LEE, Seong Gyu JANG
  • Publication number: 20200176636
    Abstract: A light emitting diode is provided to include a first conductive-type semiconductor layer; a mesa including a second conductive-type semiconductor layer disposed on the first conductive-type semiconductor layer and an active layer interposed between the first and the second conductive-type semiconductor layers; and a first electrode disposed on the mesa, wherein the first conductive-type semiconductor layer includes a first contact region disposed around the mesa along an outer periphery of the first conductive-type semiconductor layer; and a second contact region at least partially surrounded by the mesa, the first electrode is electrically connected to at least a portion of the first contact region and at least a portion of the second contact region, and a linewidth of an adjoining region between the first contact region and the first electrode is greater than the linewidth of an adjoining region between the second contact region and the first electrode.
    Type: Application
    Filed: February 5, 2020
    Publication date: June 4, 2020
    Inventors: Jong Hyeon CHAE, Joon Sup LEE, Daewoong SUH, Won Young ROH, Min Woo KANG, Jong Min JANG, Se Hee OH, Hyun A KIM
  • Patent number: 10672952
    Abstract: Provided are a light emitting diode (LED) in which a conductive barrier layer surrounding a reflective metal layer is defined by a protective insulating layer, and a method of manufacturing the same. A reflection pattern including a reflective metal layer and a conductive barrier layer is formed on an emission structure in which a first semiconductor layer, an active layer, and a second semiconductor layer are formed. The conductive barrier layer prevents diffusion of a reflective metal layer and extends to a protective insulating layer recessed under a photoresist pattern having an overhang structure during a forming process. Accordingly, a phenomenon where the conductive barrier layer is in contact with sidewalls of the photoresist pattern having an over-hang structure and the reflective metal layer forms points is prevented. Thus, LED modules having various shapes may be manufactured.
    Type: Grant
    Filed: July 15, 2019
    Date of Patent: June 2, 2020
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Jong Hyeon Chae, Jong Min Jang, Won Young Roh, Dae Woong Suh, Min Woo Kang, Joon Sub Lee, Hyun A. Kim