Patents by Inventor Kyung-Wook Park

Kyung-Wook Park 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: 20140167085
    Abstract: According to example embodiments, a light emitting device includes a transparent substrate, a transparent electrode on a transparent substrate, a transparent light extraction layer at least partially on the transparent electrode, a light emitting layer on the transparent electrode, and a reflective electrode on the light extraction layer and the light emitting layer. The light extraction layer and the light emitting layer may be alternately and repeatedly arranged between the transparent electrode and the reflective electrode.
    Type: Application
    Filed: December 6, 2013
    Publication date: June 19, 2014
    Applicants: SAMSUNG CORNING PRECISION MATERIALS CO., LTD., SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Gae-hwang LEE, Kyung-wook PARK, Yoon-young KWON, Jeong-woo PARK, Mi-jeong SONG, Yong-wan JIN
  • Patent number: 8748917
    Abstract: Disclosed are a method of fabricating a light emitting device includes the steps of: forming a plurality of compound semiconductor layers on a substrate, the substrate including a plurality of chip regions and isolation region; selectively etching the compound semiconductor layers to form a light emitting structure on each chip region and form a buffer structure on the isolation region; forming a conductive support member on the light emitting structure and the buffer structure; removing the substrate by using a laser lift off process; and dividing the conductive support member into the a plurality of chips of the chip regions, wherein the buffer structure is spaced apart from the light emitting structure.
    Type: Grant
    Filed: February 28, 2011
    Date of Patent: June 10, 2014
    Assignee: LG Innotek Co., Ltd.
    Inventors: June O Song, Young Kyu Jeong, Kyung Wook Park, Kwang Ki Choi, Da Jeong Song
  • Patent number: 8723213
    Abstract: Provided is a light emitting device. In one embodiment, a light emitting device including: a support member; a light emitting structure on the support member, the light emitting structure comprising a first conductive type semiconductor layer, a second conductive type semiconductor layer, and an active layer between the first conductive type semiconductor layer and the second conductive type semiconductor layer; a protective member at a peripheral region of an upper surface of the support member; an electrode including an upper portion being on the first conductive type semiconductor layer, a side portion extended from the upper portion and being on a side surface of the light emitting structure, and an extended portion extended from the side portion and being on the protective member; and an insulation layer between the side surface of the light emitting structure and the electrode.
    Type: Grant
    Filed: February 18, 2011
    Date of Patent: May 13, 2014
    Assignee: LG Innotek Co., Ltd.
    Inventors: Jung Hyeok Bae, Young Kyu Jeong, Kyung Wook Park, Duk Hyun Park
  • Patent number: 8686453
    Abstract: Provided is a light emitting device. The light emitting device comprises: In one embodiment, a light emitting device includes: a light emitting structure comprising a first conductive type semiconductor layer, a second conductive type semiconductor layer, and an active layer between the first conductive type semiconductor layer and the second conductive type semiconductor layer; and a conductive support member under the light emitting structure. The conductive support member comprises a first conductive support member and a second conductive support member. The second conductive support member has a thermal conductivity higher than that of the first conductive support member.
    Type: Grant
    Filed: January 14, 2011
    Date of Patent: April 1, 2014
    Assignee: LG Innotek Co.,, Ltd.
    Inventors: Jung Hyeok Bae, Young Kyu Jeong, Kyung Wook Park, Duk Hyun Park
  • Patent number: 8624270
    Abstract: Disclosed are a light emitting device and a light emitting device package having the same. The light emitting device includes a first chip structure including a first reflective layer and a first light emitting structure having a plurality of compound semiconductor layers on the first reflective layer; a second chip structure bonded onto the first chip structure and including a second reflective layer and a second light emitting structure having a plurality of compound semiconductor layers on the second reflective layer; and an electrode on the second chip structure.
    Type: Grant
    Filed: October 18, 2010
    Date of Patent: January 7, 2014
    Assignee: LG Innotek Co., Ltd.
    Inventor: Kyung Wook Park
  • Patent number: 8546835
    Abstract: Disclosed is a light emitting device. The light emitting device includes a body, a plurality of electrodes in the body, a light emitting chip installed in the body and electrically connected to the electrodes to generate light, and a thermo electric cooler module electrically connected to the electrodes and formed at a lower portion of the light emitting chip to cool the light emitting chip.
    Type: Grant
    Filed: March 8, 2011
    Date of Patent: October 1, 2013
    Assignee: LG Innotek Co., Ltd.
    Inventor: Kyung Wook Park
  • Patent number: 8513697
    Abstract: A light emitting device includes a light emitting structure including a first conductive semiconductor layer, a second conductive semiconductor layer, and an active layer between the first and second conductive semiconductor layers; a first electrode on the first conductive semiconductor layer; a transparent electrode layer on the second conductive semiconductor layer; and a second electrode on the transparent electrode layer, where the second electrode is anchored to the transparent electrode.
    Type: Grant
    Filed: September 17, 2010
    Date of Patent: August 20, 2013
    Assignee: LG Innotek Co., Ltd.
    Inventor: Kyung Wook Park
  • Patent number: 8426883
    Abstract: Provided are a light emitting device, a method for fabricating the light emitting device, a light emitting device package, and a lighting unit. The light emitting device includes a conductive support substrate, a protection layer on the conductive support substrate, the protection layer having an inclined top surface, a light emitting structure layer including a first conductive type semiconductor layer, a second conductive type semiconductor layer, and an active layer between the first conductive type semiconductor layer and the second conductive type semiconductor layer on the conductive support substrate and the protection layer, and an electrode on the light emitting structure layer. A portion of the protection layer is disposed between the conductive support substrate and the light emitting structure layer.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: April 23, 2013
    Assignee: LG Innotek Co., Ltd.
    Inventors: Kyung Wook Park, Myung Hoon Jung
  • Patent number: 8368107
    Abstract: A light emitting device according to the embodiment includes a conductive support member having a step portion at an outer peripheral region thereof, a protective member for filling the step portion formed at the outer peripheral region of the conductive support member, a reflective layer over the conductive support member, and a light emitting structure over the reflective layer and the protective member.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: February 5, 2013
    Assignee: LG Innotek Co., Ltd.
    Inventors: Jung Hyeok Bae, Young Kyu Jeong, Kyung Wook Park, Duk Hyun Park
  • Patent number: 8362500
    Abstract: Provided are a light emitting device and a light emitting device package having the same. The light emitting device includes a first light emitting structure layer including a plurality of semiconductor layers, a first electrode on the first light emitting structure layer, a first insulation layer under the first light emitting structure layer, a second light emitting structure layer including a plurality of semiconductor layers under a first reflective layer, a second reflective layer under the second light emitting structure layer, a bonding layer between the second light emitting structure layer and the first reflective layer, and a plurality of connection members connecting the first light emitting structure layer to the second light emitting structure layer in parallel.
    Type: Grant
    Filed: February 22, 2011
    Date of Patent: January 29, 2013
    Assignee: LG Innotek Co., Ltd.
    Inventor: Kyung Wook Park
  • Patent number: 8173469
    Abstract: Provided is a method for fabricating a light emitting device. The method for fabricating the light emitting device includes forming a buffer layer including a compound semiconductor in which a rare-earth element is doped on a substrate, forming a light emitting structure including a first conductive type semiconductor layer, an active layer, and a second conductive type semiconductor layer, which are successively stacked on the buffer layer, forming a first electrode layer on the light emitting structure, removing the substrate, and forming a second electrode layer under the light emitting structure.
    Type: Grant
    Filed: March 17, 2011
    Date of Patent: May 8, 2012
    Assignee: LG Innotek Co., Ltd.
    Inventors: Kyung Wook Park, Myung Hoon Jung
  • Patent number: 8150880
    Abstract: An audio data player may include a storage unit for storing one of more sound source files containing tag information, and an extraction unit for extracting one piece of information among the tag information (e.g., information on artist, album, title, year, genre, and user preference) of the stored sound source files. A control unit may provide the tag information of each sound source file extracted by the extraction unit in the form of a list, receiving one element of the provided list, and create a playback list.
    Type: Grant
    Filed: September 3, 2008
    Date of Patent: April 3, 2012
    Assignee: LG Electronics Inc.
    Inventors: U-Beom Heo, Jeong-Hee Ahn, Kyung-Wook Park, Joo-Ho Lee
  • Publication number: 20120019741
    Abstract: Disclosed is a light emitting device package including a package body provided with a first lead frame and a second lead frame, a light emitting diode electrically connected to the first lead frame and the second lead frame, a first light transfer layer surrounding the light emitting diode, the first light transfer layer made of oxide, and a second light transfer layer disposed on the first light transfer layer to change a wavelength of light transferred from the first light transfer layer, wherein the interface between the first light transfer layer and the second light transfer layer has a roughness.
    Type: Application
    Filed: September 16, 2011
    Publication date: January 26, 2012
    Applicant: LG INNOTEK CO., LTD.
    Inventor: Kyung Wook PARK
  • Publication number: 20110248301
    Abstract: Provided are a light emitting device, a method for fabricating the light emitting device, and a light emitting device package. The light emitting device includes a light emitting structure including a first conductive type semiconductor layer, an active layer under the first conductive type semiconductor layer, and a second conductive type semiconductor layer under the active layer, a conductive support member, and a protection member on the light emitting structure. The light emitting structure has a first width and a second width. A difference between the first width and the second width defines a stepped structure or an inclined structure. The protection member is disposed on the stepped or the inclined structure defined by the difference between the first and second widths of the light emitting structure.
    Type: Application
    Filed: February 23, 2011
    Publication date: October 13, 2011
    Inventors: Jung Hyeok BAE, Byung Hak Jeong, Kyung Wook Park, Chung Song Kim
  • Publication number: 20110241037
    Abstract: Provided are a light emitting device and a light emitting device package having the same. The light emitting device includes a first light emitting structure layer including a plurality of semiconductor layers, a first electrode on the first light emitting structure layer, a first insulation layer under the first light emitting structure layer, a second light emitting structure layer including a plurality of semiconductor layers under a first reflective layer, a second reflective layer under the second light emitting structure layer, a bonding layer between the second light emitting structure layer and the first reflective layer, and a plurality of connection members connecting the first light emitting structure layer to the second light emitting structure layer in parallel.
    Type: Application
    Filed: February 22, 2011
    Publication date: October 6, 2011
    Inventor: Kyung Wook PARK
  • Publication number: 20110229999
    Abstract: Provided is a method for fabricating a light emitting device. The method for fabricating the light emitting device includes forming a buffer layer including a compound semiconductor in which a rare-earth element is doped on a substrate, forming a light emitting structure including a first conductive type semiconductor layer, an active layer, and a second conductive type semiconductor layer, which are successively stacked on the buffer layer, forming a first electrode layer on the light emitting structure, removing the substrate, and forming a second electrode layer under the light emitting structure.
    Type: Application
    Filed: March 17, 2011
    Publication date: September 22, 2011
    Inventors: Kyung Wook PARK, Myung Hoon JUNG
  • Publication number: 20110220955
    Abstract: Disclosed is a light emitting device. The light emitting device includes a body, a plurality of electrodes in the body, a light emitting chip installed in the body and electrically connected to the electrodes to generate light, and a thermo electric cooler module electrically connected to the electrodes and formed at a lower portion of the light emitting chip to cool the light emitting chip.
    Type: Application
    Filed: March 8, 2011
    Publication date: September 15, 2011
    Inventor: Kyung Wook Park
  • Publication number: 20110215350
    Abstract: Disclosed are a method of fabricating a light emitting device includes the steps of: forming a plurality of compound semiconductor layers on a substrate, the substrate including a plurality of chip regions and isolation region; selectively etching the compound semiconductor layers to form a light emitting structure on each chip region and form a buffer structure on the isolation region; forming a conductive support member on the light emitting structure and the buffer structure; removing the substrate by using a laser lift off process; and dividing the conductive support member into the a plurality of chips of the chip regions, wherein the buffer structure is spaced apart from the light emitting structure.
    Type: Application
    Filed: February 28, 2011
    Publication date: September 8, 2011
    Inventors: June O SONG, Young Kyu Jeong, Kyung Wook Park, Kwang Ki Choi, Da Jeong Song
  • Publication number: 20110210359
    Abstract: Provided are a light emitting device, a method for fabricating the light emitting device, a light emitting device package, and a lighting unit. The light emitting device includes a conductive support substrate, a protection layer on the conductive support substrate, the protection layer having an inclined top surface, a light emitting structure layer including a first conductive type semiconductor layer, a second conductive type semiconductor layer, and an active layer between the first conductive type semiconductor layer and the second conductive type semiconductor layer on the conductive support substrate and the protection layer, and an electrode on the light emitting structure layer. A portion of the protection layer is disposed between the conductive support substrate and the light emitting structure layer.
    Type: Application
    Filed: February 24, 2011
    Publication date: September 1, 2011
    Inventors: Kyung Wook Park, Myung Hoon Jung
  • Publication number: 20110198660
    Abstract: Provided is a light emitting device. In one embodiment, a light emitting device including: a support member; a light emitting structure on the support member, the light emitting structure comprising a first conductive type semiconductor layer, a second conductive type semiconductor layer, and an active layer between the first conductive type semiconductor layer and the second conductive type semiconductor layer; a protective member at a peripheral region of an upper surface of the support member; an electrode including an upper portion being on the first conductive type semiconductor layer, a side portion extended from the upper portion and being on a side surface of the light emitting structure, and an extended portion extended from the side portion and being on the protective member; and an insulation layer between the side surface of the light emitting structure and the electrode.
    Type: Application
    Filed: February 18, 2011
    Publication date: August 18, 2011
    Inventors: Jung Hyeok Bae, Young Kyu Jeong, Kyung Wook Park, Duk Hyun Park