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: 10672747
    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: June 2, 2020
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Chang Yeon Kim, Jong Hyeon Chae, Jong Min Jang, Ho Joon Lee, Seong Gyu Jang
  • Publication number: 20200144232
    Abstract: A light emitting device including a first light emitting part having a first area, a second light emitting part having a second area, and a third light emitting part having a third area, in which the first light emitting part is disposed on the same plane as the second light emitting part, the third light emitting part is disposed over the first and second light emitting parts, and the third area is larger than each of the first and second areas.
    Type: Application
    Filed: October 29, 2019
    Publication date: May 7, 2020
    Inventors: Jong Hyeon CHAE, Chan Seob SHIN, Seom Geun LEE, Ho Joon LEE, Seong Kyu JANG
  • Publication number: 20200144470
    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: Application
    Filed: October 30, 2019
    Publication date: May 7, 2020
    Inventors: Seong Gyu JANG, Chan Seob SHIN, Seom Geun LEE, Ho Joon LEE, Jong Hyeon CHAE
  • Patent number: 10636771
    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: April 28, 2020
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Chang Yeon Kim, Jong Hyeon Chae, Jong Min Jang, Ho Joon Lee, Seong Gyu Jang
  • Publication number: 20200098949
    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: Application
    Filed: October 22, 2019
    Publication date: March 26, 2020
    Applicant: 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: 20200091390
    Abstract: A light emitting device including a first light emitting part including a first ohmic layer, a second light emitting part and including a second ohmic layer, a third light emitting part including first and second metal patterns respectively contacting semiconductor layers thereof, a first pad electrically coupled with the first ohmic layer, a second pad electrically coupled with the second ohmic layer, a third pad electrically coupled with the first metal pattern, a common pad electrically coupled with a semiconductor layer of the first and second light emitting parts and the second metal pattern, and a via structure electrically coupling the second metal pattern and the common pad between the second metal pattern and the common pad, in which the second metal pattern has a first portion contacting the first via structure and a second portion contacting the semiconductor layer of the third light emitting part.
    Type: Application
    Filed: September 5, 2019
    Publication date: March 19, 2020
    Inventors: Seong Gyu JANG, Ho Joon LEE, Jong Hyeon CHAE
  • Patent number: 10593850
    Abstract: A method for manufacturing a light emitting diode package comprises: arranging a first solder and a second solder between a substrate and a light emitting diode; and subjecting the first solder and the second solder to heat treatment to bond the substrate and the light emitting diode. The heat treatment comprises: increasing the temperature of the first and second solders from room temperature to a temperature Tp; maintaining the temperature Tp; and lowering the temperature Tp. The heating step comprises: a first ramping step of increasing a temperature from room temperature to a temperature TA at a constant speed; a pre-heating step of increasing the temperature from the temperature TA to a temperature TB to impart fluidity to the first and second solders; and a second ramping step of increasing the temperature from the TB to TL at a constant speed.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: March 17, 2020
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Jong Hyeon Chae, Yeon Cheol Cho, Cun Bok Jeong, Hyoung Jin Lim
  • Patent number: 10580950
    Abstract: Disclosed herein is a light emitting device manufactured by separating a growth substrate in a wafer level. The light emitting device includes: a base; a light emitting structure disposed on the base; and a plurality of second contact electrodes disposed between the base and the light emitting structure, wherein the base includes at least two bulk electrodes electrically connected to the light emitting structure and an insulation support disposed between the bulk electrodes and enclosing the bulk electrodes, the insulation support and the bulk electrodes each including concave parts and convex parts engaged with each other on surfaces facing each other, and the convex parts including a section in which a width thereof is changed in a protrusion direction.
    Type: Grant
    Filed: April 16, 2018
    Date of Patent: March 3, 2020
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Jong Hyeon Chae, Chang Yeon Kim, Sung Su Son, Dae Woong Suh
  • Publication number: 20200066691
    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: Application
    Filed: November 4, 2019
    Publication date: February 27, 2020
    Inventors: Jong Hyeon CHAE, Chang Yeon KIM, Seong Gyu JANG, Ho Joon LEE, Jong Min JANG, Dae Sung CHO
  • Publication number: 20200066690
    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: Application
    Filed: November 4, 2019
    Publication date: February 27, 2020
    Inventors: Jong Hyeon CHAE, Chang Yeon KIM, Seong Gyu JANG, Ho Joon LEE, Jong Min JANG, Dae Sung CHO
  • Patent number: 10573785
    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: December 11, 2017
    Date of Patent: February 25, 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: 20200013928
    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: Application
    Filed: September 16, 2019
    Publication date: January 9, 2020
    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: 10516083
    Abstract: An LED is provided to include: a first conductive type semiconductor layer; an active layer positioned over the first conductive type semiconductor layer; a second conductive type semiconductor layer positioned over the active layer; and a defect blocking layer comprising a masking region to cover at least a part of the top surface of the second conductive semiconductor layer and an opening region to partially expose the top surface of the second conductive type semiconductor layer, wherein the active layer and the second conductive type semiconductor layer are disposed to expose a part of the first conductive type semiconductor layer, and wherein the defect blocking layer comprises a first region and a second region surrounding the first region, and a ratio of the area of the opening region to the area of the masking region in the first region is different from a ratio of the area of the opening region to the area of the masking region in the second region.
    Type: Grant
    Filed: February 4, 2019
    Date of Patent: December 24, 2019
    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, Kyoung Wan Kim, Chang Yeon Kim
  • Patent number: 10505077
    Abstract: A light emitting element according to an embodiment of the present invention comprises a first conductive-type semiconductor layer including a contact region on the lower surface thereof, a light emitting structure which includes a mesa including a second conductive-type semiconductor layer and an active layer, a second electrode, a first insulation layer, an electrode cover layer, a first electrode, a second insulation layer, and a support structure. In addition, the mesa may include a body part and a plurality of protrusion parts protruding from the body part, the contact region may be disposed between the protrusion parts, and a part of the contact region may overlap with a second metal bulk in the vertical direction. Accordingly, current spreading efficiency can be improved, and thus luminance efficiency can be more improved.
    Type: Grant
    Filed: December 19, 2018
    Date of Patent: December 10, 2019
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Jong Hyeon Chae, Chang Yeon Kim, Joon Sup Lee, Dae Woong Suh, Won Young Roh, Ju Yong Park, Seung Hyun Kim
  • Patent number: 10497836
    Abstract: A light-emitting diode is provided to include: a transparent substrate having a first surface, a second surface, and a side surface; a first conductive semiconductor layer positioned on the first surface of the transparent substrate; a second conductive semiconductor layer positioned on the first conductive semiconductor layer; an active layer positioned between the first conductive semiconductor layer and the second conductive semiconductor layer; a first pad electrically connected to the first conductive semiconductor layer; and a second pad electrically connected to the second conductive semiconductor layer, wherein the transparent substrate is configured to discharge light generated by the active layer through the second surface of the transparent substrate, and the light-emitting diode has a beam angle of at least 140 degrees or more. Accordingly, a light-emitting diode suitable for a backlight unit or a surface lighting apparatus can be provided.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: December 3, 2019
    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: 20190341527
    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: July 15, 2019
    Publication date: November 7, 2019
    Inventors: Jong Hyeon CHAE, Jong Min JANG, Won Young ROH, Dae Woong SUH, Min Woo KANG, Joon Sub LEE, Hyun A. KIM
  • Patent number: 10439105
    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: August 2, 2016
    Date of Patent: October 8, 2019
    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
  • Publication number: 20190280178
    Abstract: A light emitting diode having a plurality of light emitting cells is provided. The light emitting diode according to an exemplary embodiment includes a lower insulation layer covering an ohmic reflection layer, connectors disposed on the lower insulation layer to connect the light emitting cells, and an upper insulation layer covering the connectors and the lower insulation layer. An edge of the lower insulation layer is spaced apart farther from an edge of the upper insulation layer than an edge of the light emitting cell. The lower insulation layer susceptible to moisture may be protected and reliability of the light emitting diode may improve.
    Type: Application
    Filed: May 28, 2019
    Publication date: September 12, 2019
    Applicant: SEOUL VIOSYS CO., LTD.
    Inventors: Se Hee OH, Hyun A KIM, Jong Kyu KIM, Jong Hyeon CHAE
  • Patent number: 10388690
    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: March 25, 2016
    Date of Patent: August 20, 2019
    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: 20190229097
    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: December 3, 2018
    Publication date: July 25, 2019
    Inventors: Motonobu TAKEYA, Seong Su Son, Jong Ik Lee, Jae Hee Lim, Jong Hyeon Chae, Seung Sik Hong