Search Patents
  • Light emitting diode having vertical topology and method of making the same
    Patent number: 7768025
    Abstract: An LED having vertical topology and a method of making the same is capable of improving a luminous efficiency and reliability, and is also capable of achieving mass productivity. The method includes forming a semiconductor layer on a substrate; forming a first electrode on the semiconductor layer; forming a supporting layer on the first electrode; generating an acoustic stress wave at the interface between the substrate and semiconductor layer, thereby separating the substrate from the semiconductor layer; and forming a second electrode on the semiconductor layer exposed by the separation of the substrate.
    Type: Grant
    Filed: September 11, 2007
    Date of Patent: August 3, 2010
    Assignees: LG Electronics Inc., LG Innotek Co., Ltd.
    Inventors: Jun Ho Jang, Jae Wan Choi, Duk Kyu Bae, Hyun Kyong Cho, Jong Kook Park, Sun Jung Kim, Jeong Soo Lee
  • Light emitting diode having vertical topology and method of making the same
    Patent number: 8624288
    Abstract: An LED having vertical topology and a method of making the same is capable of improving a luminous efficiency and reliability, and is also capable of achieving mass productivity. The method includes forming a semiconductor layer on a substrate; forming a first electrode on the semiconductor layer; forming a supporting layer on the first electrode; generating an acoustic stress wave at the interface between the substrate and semiconductor layer, thereby separating the substrate from the semiconductor layer; and forming a second electrode on the semiconductor layer exposed by the separation of the substrate.
    Type: Grant
    Filed: August 26, 2011
    Date of Patent: January 7, 2014
    Assignees: LG Electronics, Inc., LG Innotek Co., Ltd.
    Inventors: Jun Ho Jang, Jae Wan Choi, Duk Kyu Bae, Hyun Kyong Cho, Jong Kook Park, Sun Jung Kim, Jeong Soo Lee
  • Lead frame and light emitting device package using the same
    Patent number: 7855391
    Abstract: A lead frame and a light emitting device package using the same are disclosed. More particularly, a lead frame and a light emitting device package using the lead frame which can be easily manufactured and employ a multi-chip structure. The light emitting device package includes a first frame including a heat sink, a second frame coupled to an upper side of the first frame, the second frame including at least one pair of leads and a mount formed with a hole, and a molded structure for coupling the first and second frames to each other.
    Type: Grant
    Filed: February 2, 2007
    Date of Patent: December 21, 2010
    Assignees: LG Electronics Inc., LG Innotek Co., Ltd.
    Inventors: Kwang Suk Park, Yu Ho Won
  • Light emitting device having light extraction structure
    Patent number: 8004003
    Abstract: A light emitting device having a light extraction structure, which is capable of achieving an enhancement in light extraction efficiency and reliability, and a method for manufacturing the same. The light emitting device includes a semiconductor layer having a multi-layered structure including a light emission layer; and a light extraction structure formed on the semiconductor layer in a pattern having unit structures. Further, the wall of each of the unit structures is sloped at an angle of ?45° to +45° from a virtual vertical line being parallel to a main light emitting direction of the light emitting device.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: August 23, 2011
    Assignees: LG Electronics Inc., LG Innotek Co., Ltd
    Inventor: Sun Kyung Kim
  • Light emitting device having vertical structure, package thereof and method for manufacturing the same
    Publication number: 20070194343
    Abstract: A light emitting device having a vertical structure, a package thereof and a method for manufacturing the same, which are capable of damping impact generated in a substrate separation process, and achieving an improvement in mass productivity, are disclosed. The method includes growing a semiconductor layer having a multilayer structure over a substrate, forming a first electrode on the semiconductor layer, separating the substrate including the grown semiconductor layer into unit devices, bonding each of the separated unit devices on a sub-mount, separating the substrate from the semiconductor layer, and forming a second electrode on a surface of the semiconductor layer exposed in accordance with the separation of the substrate.
    Type: Application
    Filed: February 2, 2007
    Publication date: August 23, 2007
    Applicants: LG ELECTRONICS INC., LG INNOTEK CO., LTD
    Inventors: Jun Ho Jang, Geun ho Kim
  • Light emitting device having vertical structrue and method for manufacturing the same
    Patent number: 8203162
    Abstract: A light emitting device having a vertical structure and a method for manufacturing the same, which are capable of damping impact generated during a substrate separation process and achieving an improvement in mass productivity, are disclosed. The light emitting device includes a semiconductor layer having a multilayer structure, a first electrode arranged at one surface of the semiconductor layer, a metal support arranged on the first electrode, and an impact damping layer arranged between the first electrode and the metal support, and made of a metal having a ductility higher than a ductility of a metal for the metal support.
    Type: Grant
    Filed: February 4, 2010
    Date of Patent: June 19, 2012
    Assignees: LG Electronics Inc., LG Innotek Co., Ltd.
    Inventors: Jun Ho Jang, Hyun Jae Lee
  • Light emitting device and method of manufacturing the same
    Patent number: 9343624
    Abstract: A light emitting device is disclosed. The light emitting device includes a conductive support layer; a reflective layer disposed on the conductive support layer; a nitride semiconductor layer disposed on the reflective layer. Furthermore, the nitride semiconductor layer includes a second-type semiconductor layer on the reflective layer, an active layer on the second-type semiconductor layer, and a first-type semiconductor layer on the active layer; a light extraction structure disposed on the first-type semiconductor layer; and a first-type electrode disposed on the light extraction structure.
    Type: Grant
    Filed: November 24, 2014
    Date of Patent: May 17, 2016
    Assignees: LG ELECTRONICS INC., LG Innotek Co., Ltd.
    Inventors: Jong Wook Kim, Hyun Kyong Cho, Gyu Chul Yi, Sung Jin An, Jin Kyoung Yoo, Young Joon Hong
  • Light emitting device having light extraction structure and method for manufacturing the same
    Patent number: 7755097
    Abstract: A light emitting device having a light extraction structure, which is capable of achieving an enhancement in light extraction efficiency and reliability, and a method for manufacturing the same. The light emitting device includes a semiconductor layer having a multi-layered structure including a light emission layer; and a light extraction structure formed on the semiconductor layer in a pattern having unit structures. Further, the wall of each of the unit structures is sloped at an angle of ?45° to +45° from a virtual vertical line being parallel to a main light emitting direction of the light emitting device.
    Type: Grant
    Filed: November 30, 2007
    Date of Patent: July 13, 2010
    Assignees: LG Electronics Inc., LG Innotek Co., Ltd.
    Inventor: Sun Kyung Kim
  • PASTE COMPOSITION FOR FRONT ELECTRODE OF SOLAR CELL, AND SOLAR CELL INCLUDING THE SAME
    Publication number: 20120104332
    Abstract: Provided is a paste composition for front electrode of a solar cell. The paste composition includes conductive power, an organic vehicle, a glass frit, and an additive. The additive includes at least one material selected from the group consisting of Zn, Sb, V, W, Cr, Cd, Re, Sn, Mo, Mn, Ni, Co, Cu, and metal oxide including one of the foregoing materials.
    Type: Application
    Filed: October 28, 2011
    Publication date: May 3, 2012
    Applicant: LG INNOTEK CO., LTD.
    Inventors: Soon Gil KIM, Sang Gon KIM, Jun Phill EOM, Kyoung Hoon CHAI
  • Light emitting diode having vertical topology and method of making the same
    Patent number: 8039281
    Abstract: An LED having vertical topology and a method of making the same is capable of improving a luminous efficiency and reliability, and is also capable of achieving mass productivity. The method includes forming a semiconductor layer on a substrate; forming a first electrode on the semiconductor layer; forming a supporting layer on the first electrode; generating an acoustic stress wave at the interface between the substrate and semiconductor layer, thereby separating the substrate from the semiconductor layer; and forming a second electrode on the semiconductor layer exposed by the separation of the substrate.
    Type: Grant
    Filed: September 13, 2010
    Date of Patent: October 18, 2011
    Assignees: LG Electronics Inc., LG Innotek Co., Ltd.
    Inventors: Jun Ho Jang, Jae Wan Choi, Duk Kyu Bae, Hyun Kyong Cho, Jong Kook Park, Sun Jung Kim, Jeong Soo Lee
  • LIGHT EMITTING DEVICE PACKAGE AND BACKLIGHT UNIT USING THE SAME
    Publication number: 20150138758
    Abstract: A light emitting device package including light emitting devices, and optical lenses respectively disposed over the light emitting devices. Further, a respective optical lens includes an extending member extending from a body of the respective optical lens, and including a first portion laterally extending in a first direction substantially perpendicular to the central axis of the respective light emitting device, and a second portion extending towards the substrate in a second direction substantially parallel with the central axis of the respective light emitting device. A vertical cross section of the second portion is substantially symmetrical with respect to an axis that is spaced apart in the first direction from and substantially parallel with the central axis of the respective light emitting device.
    Type: Application
    Filed: January 20, 2015
    Publication date: May 21, 2015
    Applicants: LG INNOTEK CO., LTD., LG ELECTRONICS INC.
    Inventors: Jung Hoon SEO, Jun Ho JANG
  • Nitride based light emitting device
    Patent number: 8742439
    Abstract: A nitride based light emitting device is disclosed. More particularly, a nitride based light emitting device capable of improving light emitting efficiency and reliability thereof is disclosed. The nitride based light emitting device includes a first conductive semiconductor layer connected to a first electrode, a second conductive semiconductor layer connected to a second electrode, an active layer located between the first conductive semiconductor layer and the second conductive semiconductor layer and having a quantum well structure, a first insertion layer located in at least one of a boundary between the first conductive semiconductor layer and the active layer and a boundary between the second conductive semiconductor layer and the active layer, and a second insertion layer located adjacent to the first insertion.
    Type: Grant
    Filed: January 13, 2012
    Date of Patent: June 3, 2014
    Assignees: LG Electronics Inc., LG Innotek Co., Ltd.
    Inventor: Johng Eon Shin
  • Light emitting diode having vertical topology and method of making the same
    Patent number: 7834374
    Abstract: An LED having vertical topology and a method of making the same is capable of improving a luminous efficiency and reliability, and is also capable of achieving mass productivity. The method includes forming a semiconductor layer on a substrate; forming a first electrode on the semiconductor layer; forming a supporting layer on the first electrode; generating an acoustic stress wave at the interface between the substrate and semiconductor layer, thereby separating the substrate from the semiconductor layer; and forming a second electrode on the semiconductor layer exposed by the separation of the substrate.
    Type: Grant
    Filed: February 20, 2007
    Date of Patent: November 16, 2010
    Assignees: LG Electronics Inc., LG Innotek Co., Ltd.
    Inventors: Jun Ho Jang, Jae Wan Choi, Duk Kyu Bae, Hyun Kyong Cho, Jong Kook Park, Sun Jung Kim, Jeong Soo Lee
  • Light emitting device package and method for manufacturing the same
    Publication number: 20080149962
    Abstract: A light emitting device package capable of achieving an enhancement in light emission efficiency and a reduction in thermal resistance, and a method for manufacturing the same are disclosed. The method includes forming a mounting hole in a first substrate, forming through holes in a second substrate, forming a metal film in the through holes, forming at least one pair of metal layers on upper and lower surfaces of the second substrate such that the metal layers are electrically connected to the metal film, bonding the first substrate to the second substrate, and mounting at least one light emitting device in the mounting hole such that the light emitting device is electrically connected to the metal layers formed on the upper surface of the second substrate.
    Type: Application
    Filed: February 15, 2007
    Publication date: June 26, 2008
    Applicants: LG Electronics Inc., LG INNOTEK CO., LTD.
    Inventors: Geun Ho Kim, Seung Yeob Lee, Yu Ho Won
  • Light emitting unit, apparatus and method for manufacturing the same, apparatus for molding lens thereof, and light emitting device package thereof
    Publication number: 20070286550
    Abstract: A light emitting unit, an apparatus and method for manufacturing the same, an apparatus for molding a lens thereof, and a light emitting device package thereof, which are capable of achieving an enhancement in light extraction efficiency and an improvement in mass productivity, are disclosed. The light emitting unit manufacturing apparatus includes a mold including a first mold and a second mold coupled to each other under a condition in which at least one light emitting unit is interposed between the first and second molds, a groove formed in one of the first and second molds at a position facing the light emitting unit, the groove having a lens shape, and a passage extending from an outer surface of the mold to the groove.
    Type: Application
    Filed: February 16, 2007
    Publication date: December 13, 2007
    Applicants: LG Electronics Inc., LG INNOTEK CO., LTD.
    Inventors: Yong Suk Kim, Hoon Hur
  • LIGHT EMITTING DEVICE PACKAGE AND BACKLIGHT UNIT USING THE SAME
    Publication number: 20150131266
    Abstract: A light emitting device package including light emitting devices, and optical lenses respectively disposed over the light emitting devices. Further, a respective optical lens includes an extending member extending from a body of the respective optical lens, and including a first portion laterally extending in a first direction substantially perpendicular to the central axis of the respective light emitting device, and a second portion extending towards the substrate in a second direction substantially parallel with the central axis of the respective light emitting device. A vertical cross section of the second portion is substantially symmetrical with respect to an axis that is spaced apart in the first direction from and substantially parallel with the central axis of the respective light emitting device.
    Type: Application
    Filed: January 20, 2015
    Publication date: May 14, 2015
    Applicants: LG ELECTRONICS INC., LG INNOTEK CO., LTD.
    Inventors: Jung Hoon SEO, Jun Ho JANG
  • Backlight unit having light emitting diodes and method for manufacturing the same
    Patent number: 7427145
    Abstract: A backlight unit including a substrate disposed thereon with conductive lines, a plurality of light emitting diodes each bonded to an upper surface of the substrate and spaced a predetermined distance apart from the substrate, and electrically connected to the conductive lines of the substrate; a transparent resin encompassing the plurality of light emitting diodes and formed on the upper surface of the substrate, and an optical transmission arrangement disposed on an upper surface of the transparent resin. Further, the arrangement includes a first layer for preventing light emitted from the light emitting diodes from being totally reflected by allowing an incident angle of the light to be less than a threshold angle, and a second layer for diffusing and emitting the light.
    Type: Grant
    Filed: May 30, 2006
    Date of Patent: September 23, 2008
    Assignees: LG Electronics Inc., LG Innotek Co., Ltd.
    Inventors: Jun Ho Jang, Young Joo Yee
  • Nitride based light emitting device
    Patent number: 8110841
    Abstract: A nitride based light emitting device is disclosed. More particularly, a nitride based light emitting device capable of improving light emitting efficiency and reliability thereof is disclosed. The nitride based light emitting device includes a first conductive semiconductor layer connected to a first electrode, a second conductive semiconductor layer connected to a second electrode, an active layer located between the first conductive semiconductor layer and the second conductive semiconductor layer and having a quantum well structure, a first insertion layer located in at least one of a boundary between the first conductive semiconductor layer and the active layer and a boundary between the second conductive semiconductor layer and the active layer, and a second insertion layer located adjacent to the first insertion.
    Type: Grant
    Filed: February 6, 2007
    Date of Patent: February 7, 2012
    Assignees: LG Electronics Inc., LG Innotek Co., Ltd.
    Inventor: Johng Eon Shin
  • Light emitting device package and method for manufacturing the same
    Patent number: 8546838
    Abstract: A light emitting device package capable of achieving an enhancement in light emission efficiency and a reduction in thermal resistance, and a method for manufacturing the same are disclosed. The method includes forming a mounting hole in a first substrate, forming through holes in a second substrate, forming a metal film in the through holes, forming at least one pair of metal layers on upper and lower surfaces of the second substrate such that the metal layers are electrically connected to the metal film, bonding the first substrate to the second substrate, and mounting at least one light emitting device in the mounting hole such that the light emitting device is electrically connected to the metal layers formed on the upper surface of the second substrate.
    Type: Grant
    Filed: July 26, 2011
    Date of Patent: October 1, 2013
    Assignees: LG Electronics Inc., LG Innotek Co., Ltd.
    Inventors: Geun Ho Kim, Seung Yeob Lee, Yu Ho Won
  • Light emitting unit, apparatus and method for manufacturing the same, apparatus for molding lens thereof, and light emitting device package thereof
    Patent number: 7869674
    Abstract: A light emitting unit, an apparatus and method for manufacturing the same, an apparatus for molding a lens thereof, and a light emitting device package thereof, which are capable of achieving an enhancement in light extraction efficiency and an improvement in mass productivity, are disclosed. The light emitting unit manufacturing apparatus includes a mold including a first mold and a second mold coupled to each other under a condition in which at least one light emitting unit is interposed between the first and second molds, a groove formed in one of the first and second molds at a position facing the light emitting unit, the groove having a lens shape, and a passage extending from an outer surface of the mold to the groove.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: January 11, 2011
    Assignees: LG Electronics Inc., LG Innotek Co., Ltd.
    Inventors: Yong Suk Kim, Hoon Hur
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