Patents by Inventor Duk Il Suh

Duk Il Suh 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: 10923642
    Abstract: A light emitting diode including an n-type semiconductor layer, a mesa disposed on the n-type semiconductor layer and exposing a portion thereof, and including an active layer and a p-type semiconductor layer, first and second bonding pads electrically connected to the n-type and p-type semiconductor layers, respectively, and a first insulation layer at least partially disposed between the exposed portion of the n-type semiconductor layer exposed by the mesa and the second bonding pad, in which the exposed portion of the n-type semiconductor layer has a first portion having a shortest distance to the second bonding pad, the first insulation layer covers a portion of the p-type semiconductor layer disposed between the second bonding pad and the first portion of the n-type semiconductor layer, and the first insulation layer is disposed along an edge of the p-type semiconductor layer adjacent to the exposed portion of the n-type semiconductor layer.
    Type: Grant
    Filed: May 30, 2019
    Date of Patent: February 16, 2021
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Sang Won Woo, Ye Seul Kim, Tae Jun Park, Duk Il Suh
  • Patent number: 10707382
    Abstract: A light-emitting element according to an embodiment of the present document has a transparent electrode having an opening, and the transparent electrode has a protrusion on a side surface of the opening. A second electrode pad is arranged on the opening of the transparent electrode, and abuts the protrusion. Accordingly, peeling of the second electrode pad can be prevented, thereby improving the reliability of the light-emitting element.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: July 7, 2020
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Ye Seul Kim, Kyoung Wan Kim, Sang Hyun Oh, Duk Il Suh, Sang Won Woo, Ji Hye Kim
  • Patent number: 10672951
    Abstract: The light emitting element is provided to comprise: a first conductive type semiconductor layer; a mesa; a current blocking layer; a transparent electrode; a first electrode pad and a first electrode extension; a second electrode pad and a second electrode extension; and an insulation layer partially located on the lower portion of the first electrode, wherein the mesa includes at least one groove formed on a side thereof, the first conductive type semiconductor layer is partially exposed through the groove, the insulation layer includes an opening through which the exposed first conductive type semiconductor layer is at least partially exposed, the first electrode extension includes extension contact portions in contact with the first conductive type semiconductor layer through an opening, and the second electrode extension includes an end with a width different from the average width of the second electrode extension.
    Type: Grant
    Filed: December 15, 2017
    Date of Patent: June 2, 2020
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Duk Il Suh, Ye Seul Kim, Kyoung Wan Kim, Sang Won Woo, Ji Hye Kim
  • Publication number: 20190371990
    Abstract: A light emitting diode including an n-type semiconductor layer, a mesa disposed on the n-type semiconductor layer and exposing a portion thereof, and including an active layer and a p-type semiconductor layer, first and second bonding pads electrically connected to the n-type and p-type semiconductor layers, respectively, and a first insulation layer at least partially disposed between the exposed portion of the n-type semiconductor layer exposed by the mesa and the second bonding pad, in which the exposed portion of the n-type semiconductor layer has a first portion having a shortest distance to the second bonding pad, the first insulation layer covers a portion of the p-type semiconductor layer disposed between the second bonding pad and the first portion of the n-type semiconductor layer, and the first insulation layer is disposed along an edge of the p-type semiconductor layer adjacent to the exposed portion of the n-type semiconductor layer.
    Type: Application
    Filed: May 30, 2019
    Publication date: December 5, 2019
    Inventors: San Won WOO, Ye Seul KIM, Tae Jun PARK, Duk Il SUH
  • Publication number: 20190123244
    Abstract: A light-emitting element according to an embodiment of the present document has a transparent electrode having an opening, and the transparent electrode has a protrusion on a side surface of the opening. A second electrode pad is arranged on the opening of the transparent electrode, and abuts the protrusion. Accordingly, peeling of the second electrode pad can be prevented, thereby improving the reliability of the light-emitting element.
    Type: Application
    Filed: December 12, 2018
    Publication date: April 25, 2019
    Inventors: Ye Seul KIM, Kyoung Wan KIM, Sang Hyun OH, Duk Il SUH, Sang Won WOO, Ji Hye KIM
  • Patent number: 10186638
    Abstract: A light-emitting element according to an embodiment of the present document has a transparent electrode having an opening, and the transparent electrode has a protrusion on a side surface of the opening. A second electrode pad is arranged on the opening of the transparent electrode, and abuts the protrusion. Accordingly, peeling of the second electrode pad can be prevented, thereby improving the reliability of the light-emitting element.
    Type: Grant
    Filed: January 12, 2017
    Date of Patent: January 22, 2019
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Ye Seul Kim, Kyoung Wan Kim, Sang Hyun Oh, Duk Il Suh, Sang Won Woo, Ji Hye Kim
  • Patent number: 10069038
    Abstract: Provided are a substrate having concave-convex patterns, a light-emitting diode (LED) including the substrate, and a method of fabricating the LED. The LED includes a substrate, and concave-convex patterns disposed in an upper surface of the substrate and having convexes and concaves defined by the convexes. Unit light-emitting device having a first conductive semiconduct or layer, an active layer, and a second conductive semiconductor layer disposed on the substrate in sequence is present.
    Type: Grant
    Filed: June 5, 2015
    Date of Patent: September 4, 2018
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jae Kwon Kim, Sum Geun Lee, Kyung Wan Kim, Yeo Jin Yoon, Duk Il Suh, Ji Hye Kim
  • Publication number: 20180166608
    Abstract: The light emitting element is provided to comprise: a first conductive type semiconductor layer; a mesa; a current blocking layer; a transparent electrode; a first electrode pad and a first electrode extension; a second electrode pad and a second electrode extension; and an insulation layer partially located on the lower portion of the first electrode, wherein the mesa includes at least one groove formed on a side thereof, the first conductive type semiconductor layer is partially exposed through the groove, the insulation layer includes an opening through which the exposed first conductive type semiconductor layer is at least partially exposed, the first electrode extension includes extension contact portions in contact with the first conductive type semiconductor layer through an opening, and the second electrode extension includes an end with a width different from the average width of the second electrode extension.
    Type: Application
    Filed: December 15, 2017
    Publication date: June 14, 2018
    Inventors: Duk Il Suh, Ye Seul Kim, Kyoung Wan Kim, Sang Won Woo, Ji Hye Kim
  • Patent number: 9929315
    Abstract: A light emitting diode chip and a light emitting diode package including the same. The light emitting diode chip includes a substrate, a light emitting diode section disposed on the substrate, an inverse parallel diode section disposed on the substrate and connected inversely parallel to the light emitting diode section. In the light emitting diode chip, the light emitting diode section is disposed together with the inverse parallel diode section.
    Type: Grant
    Filed: May 28, 2015
    Date of Patent: March 27, 2018
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Duk Il Suh, Kyoung Wan Kim, Yeo Jin Yoon, Sang Won Woo, Shin Hyoung Kim
  • Patent number: 9865775
    Abstract: The light emitting element is provided to comprise: a first conductive type semiconductor layer; a mesa; a current blocking layer; a transparent electrode; a first electrode pad and a first electrode extension; a second electrode pad and a second electrode extension; and an insulation layer partially located on the lower portion of the first electrode, wherein the mesa includes at least one groove formed on a side thereof, the first conductive type semiconductor layer is partially exposed through the groove, the insulation layer includes an opening through which the exposed first conductive type semiconductor layer is at least partially exposed, the first electrode extension includes extension contact portions in contact with the first conductive type semiconductor layer through an opening, and the second electrode extension includes an end with a width different from the average width of the second electrode extension.
    Type: Grant
    Filed: December 29, 2016
    Date of Patent: January 9, 2018
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Duk Il Suh, Ye Seul Kim, Kyoung Wan Kim, Sang Won Woo, Ji Hye Kim
  • Publication number: 20170125640
    Abstract: A light-emitting element according to an embodiment of the present document has a transparent electrode having an opening, and the transparent electrode has a protrusion on a side surface of the opening. A second electrode pad is arranged on the opening of the transparent electrode, and abuts the protrusion. Accordingly, peeling of the second electrode pad can be prevented, thereby improving the reliability of the light-emitting element.
    Type: Application
    Filed: January 12, 2017
    Publication date: May 4, 2017
    Inventors: Ye Seul Kim, Kyoung Wan Kim, Sang Hyun Oh, Duk Il Suh, Sang Won Woo, Ji Hye Kim
  • Publication number: 20170110629
    Abstract: The light emitting element is provided to comprise: a first conductive type semiconductor layer; a mesa; a current blocking layer; a transparent electrode; a first electrode pad and a first electrode extension; a second electrode pad and a second electrode extension; and an insulation layer partially located on the lower portion of the first electrode, wherein the mesa includes at least one groove formed on a side thereof, the first conductive type semiconductor layer is partially exposed through the groove, the insulation layer includes an opening through which the exposed first conductive type semiconductor layer is at least partially exposed, the first electrode extension includes extension contact portions in contact with the first conductive type semiconductor layer through an opening, and the second electrode extension includes an end with a width different from the average width of the second electrode extension.
    Type: Application
    Filed: December 29, 2016
    Publication date: April 20, 2017
    Inventors: Duk Il Suh, Ye Seul Kim, Kyoung Wan Kim, Sang Won Woo, Ji Hye Kim
  • Publication number: 20160380157
    Abstract: A light-emitting diode (LED) includes a light-emitting structure arranged on a first surface of a substrate, the light-emitting structure including a first conductivity-type semiconductor layer; a second conductivity-type semiconductor layer, and an active layer interposed between the first conductivity-type semiconductor layer and the second conductivity-type semiconductor layer. The LED includes a first distributed Bragg reflector arranged on a second surface of the substrate opposite to the first surface, the first distributed Bragg reflector including a first laminate structure including alternately stacked SiO2 and Nb2O5 layers. The first laminate structure of the first distributed Bragg reflector is configured to reflect at least 90% of a first wavelength range of blue light emitted from the light emitting structure.
    Type: Application
    Filed: September 12, 2016
    Publication date: December 29, 2016
    Inventors: Duk Il SUH, Jae Moo Kim, Kyoung Wan Kim, Yeo Jin Yoon, Ye Seul Kim, Sang Hyun Oh, Jin Woong Lee
  • Patent number: 9281446
    Abstract: Disclosed are a light emitting diode and a method of fabricating the same. The light emitting diode includes a GaN substrate having a plurality of through-holes; a GaN-based semiconductor stack structure placed on the substrate and including a first conductive-type semiconductor layer, an active layer, and a second conductive-type semiconductor layer; and a first electrode electrically connected to the first conductive-type semiconductor layer via the through-holes. The light emitting diode can reduce crystal defects and prevent reduction in light emitting area.
    Type: Grant
    Filed: February 27, 2013
    Date of Patent: March 8, 2016
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Duk Il Suh, Kyoung Wan Kim, Yeo Jin Yoon, Ji Hye Kim
  • Publication number: 20150318443
    Abstract: A light emitting diode chip and a light emitting diode package including the same. The light emitting diode chip includes a substrate, a light emitting diode section disposed on the substrate, an inverse parallel diode section disposed on the substrate and connected inversely parallel to the light emitting diode section. In the light emitting diode chip, the light emitting diode section is disposed together with the inverse parallel diode section.
    Type: Application
    Filed: May 28, 2015
    Publication date: November 5, 2015
    Inventors: Duk Il Suh, Kyoung Wan Kim, Yeo Jin Yoon, Sang Won Woo, Shin Hyoung Kim
  • Publication number: 20150270441
    Abstract: Provided are a substrate having concave-convex patterns, a light-emitting diode (LED) including the substrate, and a method of fabricating the LED. The LED includes a substrate, and concave-convex patterns disposed in an upper surface of the substrate and having convexes and concaves defined by the convexes. Unit light-emitting device having a first conductive semiconduct or layer, an active layer, and a second conductive semiconductor layer disposed on the substrate in sequence is present.
    Type: Application
    Filed: June 5, 2015
    Publication date: September 24, 2015
    Inventors: Jae Kwon Kim, Sum Geun Lee, Kyung Wan Kim, Yeo Jin Yoon, Duk Il Suh, Ji Hye Kim
  • Publication number: 20150144981
    Abstract: A light-emitting diode (LED) according to an exemplary embodiment includes a light-emitting structure arranged on a first surface of a substrate, the light-emitting structure including a first conductivity-type semiconductor layer, a second conductivity-type semiconductor layer, and an active layer interposed between the first conductivity-type semiconductor layer and the second conductivity-type semiconductor layer. A first distributed Bragg reflector is arranged on a second surface of the substrate opposite to the first surface, the first distributed Bragg reflector to reflect light emitted from the light-emitting structure. The first distributed Bragg reflector has a reflectivity of at least 90% with respect to blue, green, and red light.
    Type: Application
    Filed: January 28, 2015
    Publication date: May 28, 2015
    Inventors: Duk Il Suh, Jae Moo Kim, Kyoung Wan Kim, Yeo Jin Yoon, Ye Seul Kim, Sang Hyun Oh, Jin Woong Lee
  • Patent number: 8963183
    Abstract: A light-emitting diode (LED) according to an exemplary embodiment includes a light-emitting structure arranged on a first surface of a substrate, the light-emitting structure including a first conductivity-type semiconductor layer, a second conductivity-type semiconductor layer, and an active layer interposed between the first conductivity-type semiconductor layer and the second conductivity-type semiconductor layer. A first distributed Bragg reflector is arranged on a second surface of the substrate opposite to the first surface, the first distributed Bragg reflector to reflect light emitted from the light-emitting structure. The first distributed Bragg reflector has a reflectivity of at least 90% with respect to blue, green, and red light.
    Type: Grant
    Filed: February 6, 2013
    Date of Patent: February 24, 2015
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Duk Il Suh, Jae Moo Kim, Kyoung Wan Kim, Yeo Jin Yoon, Ye Seul Kim, Sang-Hyun Oh, Jin Woong Lee
  • Patent number: 8878220
    Abstract: Exemplary embodiments of the present invention relate to light emitting diodes. A light emitting diode according to an exemplary embodiment of the present invention includes a substrate having a first side edge and a second side edge, and a light emitting structure arranged on the substrate. The light emitting structure includes a first conductivity-type semiconductor layer, an active layer, and a second conductivity-type semiconductor layer. A transparent electrode layer including a concave portion and a convex portion is arranged on the second conductivity-type semiconductor layer. A first electrode pad contacts an upper surface of the first conductivity-type semiconductor layer and is located near a center of the first side edge. Two second electrode pads are located near opposite distal ends of the second side edge to supply electric current to the second conductivity-type semiconductor layer.
    Type: Grant
    Filed: August 15, 2011
    Date of Patent: November 4, 2014
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jeong Hee Yang, Kyoung Wan Kim, Yeo Jin Yoon, Ye Seul Kim, Sang Hyun Oh, Duk Il Suh, Keum Ju Lee, Jin Woong Lee, Da Yeon Jeong
  • Publication number: 20140299905
    Abstract: A light-emitting diode includes a substrate, and a light-emitting structure disposed on the substrate. The light-emitting structure includes a first conductivity-type semiconductor layer, an active layer, and a second conductivity-type semiconductor layer. A transparent electrode layer including concave portions and convex portions is disposed on the second conductivity-type semiconductor layer. Micro-lenses are disposed on the transparent electrode layer and completely cover the concave portions, and only partially cover the convex portions that are disposed between the micro-lenses.
    Type: Application
    Filed: June 19, 2014
    Publication date: October 9, 2014
    Inventors: Jeong Hee YANG, Kyoung Wan Kim, Yeo Jin Yoon, Ye Seul Kim, Sang Hyun Oh, Duk Il Suh, Keum Ju Lee, Jin Woong Lee, Da Yeon Jeong