Patents by Inventor Yonggyeong LEE

Yonggyeong LEE 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: 9343629
    Abstract: A light emitting device including a light emitting structure having a first semiconductor layer, a second semiconductor layer, and an active layer between the first and second semiconductor layers; a first electrode electrically connected to the first semiconductor layer; and a second electrode disposed on the second semiconductor layer. Further, the second electrode include a reflective layer disposed on the second semiconductor layer; a metal layer disposed on a side surface of the reflective layer and on a top surface of reflective layer; a first anti-oxidation layer on the metal layer; and a second anti-oxidation layer on the first anti-oxidation layer. In addition, the second anti-oxidation layer is more than 10 times thicker than the first anti-oxidation layer.
    Type: Grant
    Filed: May 27, 2014
    Date of Patent: May 17, 2016
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Byungyeon Choi, Hyunseoung Ju, Yonggyeong Lee, Giseok Hong, Jihee No
  • Patent number: 9130117
    Abstract: A light emitting device is disclosed. The light emitting device includes a light emitting structure including a first semiconductor layer doped with a first dopant while including a first region and a second region stepped relative to the first region, a second semiconductor layer doped with a second dopant different from the first dopant while disposed over the second region, and an active layer disposed between the first and second semiconductor layers, a first electrode disposed on the first region, and a functional member disposed between one side surface of the light emitting structure adjacent to the first electrode and the first electrode while being disposed at the first region, wherein the functional member has a thickness greater than a thickness of the first electrode and less than a thickness of the light emitting structure, with respect to a surface of the first region.
    Type: Grant
    Filed: April 18, 2012
    Date of Patent: September 8, 2015
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Yonggyeong Lee, Woosik Lim, Jaewon Seo
  • Publication number: 20140264421
    Abstract: A light emitting device including a light emitting structure having a first semiconductor layer, a second semiconductor layer, and an active layer between the first and second semiconductor layers; a first electrode electrically connected to the first semiconductor layer; and a second electrode disposed on the second semiconductor layer. Further, the second electrode include a reflective layer disposed on the second semiconductor layer; a metal layer disposed on a side surface of the reflective layer and on a top surface of reflective layer; a first anti-oxidation layer on the metal layer; and a second anti-oxidation layer on the first anti-oxidation layer. In addition, the second anti-oxidation layer is more than 10 times thicker than the first anti-oxidation layer.
    Type: Application
    Filed: May 27, 2014
    Publication date: September 18, 2014
    Applicant: LG INNOTEK CO., LTD.
    Inventors: Byungyeon CHOI, Hyunseoung JU, Yonggyeong LEE, Giseok HONG, Jihee NO
  • Patent number: 8766302
    Abstract: A light emitting device is disclosed. The light emitting device includes an electrode, which includes a reflective electrode layer disposed over a second semiconductor layer and a bonding electrode layer disposed in at least a partial region of an outer side surface of the reflective electrode layer while coming into contact with the second semiconductor layer. Thus, it may be possible to enhance bonding reliability between the electrode and the semiconductor layer.
    Type: Grant
    Filed: March 6, 2012
    Date of Patent: July 1, 2014
    Assignee: LG Innotek Co., Ltd.
    Inventors: Byungyeon Choi, Hyunseoung Ju, Yonggyeong Lee, Giseok Hong, Jihee No
  • Publication number: 20130119420
    Abstract: A light emitting device is disclosed. The light emitting device includes an electrode, which includes a reflective electrode layer disposed over a second semiconductor layer and a bonding electrode layer disposed in at least a partial region of an outer side surface of the reflective electrode layer while coming into contact with the second semiconductor layer. Thus, it may be possible to enhance bonding reliability between the electrode and the semiconductor layer.
    Type: Application
    Filed: March 6, 2012
    Publication date: May 16, 2013
    Inventors: Byungyeon CHOI, Hyunseoung Ju, Yonggyeong Lee, Giseok Hong, Jihee No
  • Publication number: 20130062645
    Abstract: Embodiments provide a light emitting device comprising a support member, a light emitting structure disposed on the support member, the light emitting structure comprising a first semiconductor layer comprises a first and second regions, a second semiconductor layer disposed on the second region, and an active layer between the first and second semiconductor layers, a first electrode disposed on the first semiconductor layer and a second electrode disposed on the second semiconductor layer, wherein the support member includes metal ions to convert light of a first wavelength emitted from the active layer into light of a second wavelength different from the first wavelength.
    Type: Application
    Filed: April 18, 2012
    Publication date: March 14, 2013
    Inventors: Yonggyeong LEE, Byungyeon Choi, Jaewoong Choung
  • Publication number: 20130051074
    Abstract: A light emitting device is disclosed. The light emitting device includes a light emitting structure including a first semiconductor layer doped with a first dopant while including a first region and a second region stepped relative to the first region, a second semiconductor layer doped with a second dopant different from the first dopant while disposed over the second region, and an active layer disposed between the first and second semiconductor layers, a first electrode disposed on the first region, and a functional member disposed between one side surface of the light emitting structure adjacent to the first electrode and the first electrode while being disposed at the first region, wherein the functional member has a thickness greater than a thickness of the first electrode and less than a thickness of the light emitting structure, with respect to a surface of the first region.
    Type: Application
    Filed: April 18, 2012
    Publication date: February 28, 2013
    Inventors: Yonggyeong LEE, Woosik Lim, Jaewon Seo