Patents by Inventor Geun-woo KO

Geun-woo KO 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).

  • Publication number: 20160351767
    Abstract: A semiconductor light-emitting device package includes: a light-emitting structure having a first surface, a second surface opposite to the first surface and side surfaces disposed between the first and the second surfaces, the light-emitting structure comprising a first light-emitting laminate and a second light-emitting laminate, each of the first and the second light emitting laminates including: a first conductivity-type semiconductor layer; an active layer, and a second conductivity-type semiconductor layer, an interconnector provided on the second surface of the light-emitting structure and configured to electrically connect the first and the second light-emitting laminates; a metal guide surrounding the side surfaces of the light-emitting structure; and an encapsulant surrounding the metal guide and the second and the side surfaces of the light-emitting structure and exposing the first surface of the light-emitting structure.
    Type: Application
    Filed: February 29, 2016
    Publication date: December 1, 2016
    Inventors: Pun Jae CHOI, Geun Woo KO, Yong Min KWON, Ah Young WOO, Jun Ho LEE, Jin Wook CHUNG
  • Publication number: 20160020358
    Abstract: There is provided a semiconductor light emitting device 100 including a substructure 101, 120, 130 including at least one light emitting region R1 including a plurality of three-dimensional (3-D) light emitting nanostructures 140 and at least one electrode region R2, R3 including a plurality of locations CP2A, 17A, 17B, 18A, 18B wherein an arrangement of the plurality of three-dimensional (3-D) light emitting nanostructures 140 and the plurality of locations CP2A, 17A, 17B, 18A, 18B are identical.
    Type: Application
    Filed: May 28, 2015
    Publication date: January 21, 2016
    Inventors: Dong Kuk LEE, Geun Woo KO, Geon-Wook YOO, Nam Goo CHA
  • Publication number: 20160013364
    Abstract: A method of manufacturing a nanostructure semiconductor light emitting device may includes preparing a mask layer by sequentially forming a first insulating layer and a second insulating layer on a base layer configured of a first conductivity-type semiconductor, forming a plurality of openings penetrating the mask layer, growing a plurality of nanorods in the plurality of openings, removing the second insulating layer, preparing a plurality of nanocores by re-growing the plurality of nanorods, and forming nanoscale light emitting structures by sequentially growing an active layer and a second conductivity-type semiconductor layer on surfaces of the plurality of nanocores. The plurality of openings may respectively include a mold region located in the second insulating layer, and the mold region includes at least one curved portion of which an inclination of a side surface varies according to proximity to the first insulating layer.
    Type: Application
    Filed: January 28, 2015
    Publication date: January 14, 2016
    Inventors: Nam Goo CHA, Ki Hyung LEE, Wan Tae LIM, Geun Woo KO, Min Wook CHOI
  • Patent number: 9166099
    Abstract: A graphene light-emitting device and a method of manufacturing the same are provided. The graphene light-emitting device includes a p-type graphene doped with a p-type dopant; an n-type graphene doped with an n-type dopant; and an active graphene that is disposed between the type graphene and the n-type graphene and emits light, wherein the p-type graphene, the n-type graphene, and the active graphene are horizontally disposed.
    Type: Grant
    Filed: September 16, 2011
    Date of Patent: October 20, 2015
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-won Hwang, Geun-woo Ko, Sung-hyun Sim, Hun-jae Chung, Han-kyu Seong, Cheol-soo Sone, Jin-hyun Lee, Hyung-duk Ko, Suk-ho Choi, Sung Kim
  • Publication number: 20150221825
    Abstract: A semiconductor light emitting device includes a substrate, a first conductivity-type semiconductor base layer disposed on the substrate, a plurality of light emitting nanostructures, a transparent electrode layer, and a first electrode. The plurality of light emitting nanostructures are disposed to be spaced apart from one another on the first conductivity-type semiconductor base layer and include a first conductivity-type semiconductor core, an active layer, and a second conductivity-type semiconductor layer, respectively. The transparent electrode layer is disposed on the second conductivity-type semiconductor layer and between the plurality of light emitting nanostructures. The first electrode is electrically connected to the second conductivity-type semiconductor layer by penetrating the substrate.
    Type: Application
    Filed: October 22, 2014
    Publication date: August 6, 2015
    Inventors: Geun-Woo KO, Nam Goo CHA, Hyun Seong KUM
  • Patent number: 9012884
    Abstract: A semiconductor light-emitting device includes a contact layer. The contact layer has the composition ratio of Al elements which varies gradually therein. A region formed by an Al element in the contact layer of the semiconductor light-emitting device may improve light extraction efficiency of the light emitted from an active layer and facilitate a formation of the reflective electrode.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: April 21, 2015
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jung-Sub Kim, Sung-Won Hwang, Geun-Woo Ko, Cheol-Soo Sone, Sung-Hyun Sim, Jin-Sub Lee
  • Patent number: 8907320
    Abstract: An ultraviolet (UV) light-emitting diode including an n-type semiconductor layer, an active layer disposed on the n-type semiconductor layer, a p-type semiconductor layer disposed on the active layer and formed of p-type AlGaN, and a p-type graphene layer disposed on the p-type semiconductor layer and formed of graphene doped with a p-type dopant. The UV light-emitting diode has improved light emission efficiency by lowering contact resistance with the p-type semiconductor layer and maximizing UV transmittance.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: December 9, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-Won Hwang, Geun-Woo Ko, Sung-Hyun Sim, Jung-Sub Kim, Hun-Jae Chung, Cheol-Soo Sone
  • Publication number: 20140008608
    Abstract: A semiconductor light-emitting device includes a contact layer. The contact layer has the composition ratio of Al elements which varies gradually therein. A region formed by an Al element in the contact layer of the semiconductor light-emitting device may improve light extraction efficiency of the light emitted from an active layer and facilitate a formation of the reflective electrode.
    Type: Application
    Filed: March 14, 2013
    Publication date: January 9, 2014
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Jung-Sub KIM, Sung-Won HWANG, Geun-Woo KO, Cheol-Soo SONE, Sung-Hyun SIM, Jin-Sub LEE
  • Publication number: 20120068152
    Abstract: A graphene light-emitting device and a method of manufacturing the same are provided. The graphene light-emitting device includes a p-type graphene doped with a p-type dopant; an n-type graphene doped with an n-type dopant; and an active graphene that is disposed between the type graphene and the n-type graphene and emits light, wherein the p-type graphene, the n-type graphene, and the active graphene are horizontally disposed.
    Type: Application
    Filed: September 16, 2011
    Publication date: March 22, 2012
    Applicant: SAMSUNG LED CO., LTD.
    Inventors: Sung-won HWANG, Geun-woo KO, Sung-hyun SIM, Hun-jae CHUNG, Han-kyu SEONG, Cheol-soo SONE, Jin-hyun LEE, Hyung-duk KO, Suk-ho CHOI, Sung KIM
  • Publication number: 20120068154
    Abstract: A graphene quantum dot light emitting device includes: a first graphene; a graphene quantum dot layer disposed on the first graphene and including a plurality of graphene quantum dots; and a second graphene disposed on the graphene quantum dot layer. A method of manufacturing a graphene quantum dot light emitting device includes: forming a first graphene doped with a first dopant; forming a graphene quantum dot layer including a plurality of graphene quantum dots on the first graphene; and forming a second graphene doped with a second dopant on the graphene quantum dot layer.
    Type: Application
    Filed: September 16, 2011
    Publication date: March 22, 2012
    Applicant: SAMSUNG LED CO., LTD.
    Inventors: Sung-won HWANG, Geun-woo KO, Sung-hyun SIM, Hun-jae CHUNG, Cheol-soo SONE, Jin-hyun LEE, Byung-hee HONG, Su-kang BAE