Patents by Inventor WAN TAE LIM

WAN TAE LIM 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: 20230317763
    Abstract: A light emitting diode having a plurality of light emitting cells is provided. A light emitting diode according to an embodiment includes a reflection metal layer covering a region between light emitting cells, in which the reflection metal layer is disposed between connectors electrically connecting adjacent light emitting cells, and electrically insulated from a bump pad.
    Type: Application
    Filed: August 9, 2021
    Publication date: October 5, 2023
    Inventors: Se Hee OH, Wan Tae LIM, Sang Won WOO
  • Publication number: 20230246149
    Abstract: This light emitting device comprises: a substrate; a light emitting laminate disposed on the substrate; first and second electrodes provided on the light emitting laminate; first and second bumps provided on the first and second electrodes, respectively; a passivation film which is provided on the substrate, exposes portions of the upper surfaces of the first and second bumps, and covers the laminate; and a light conversion layer covering the rear surface of the substrate, a side surface of the substrate, and a side surface of the passivation film.
    Type: Application
    Filed: July 6, 2021
    Publication date: August 3, 2023
    Inventors: Jae Kwon KIM, Kyoung Wan KIM, Wan Tae LIM
  • Publication number: 20230215990
    Abstract: A light emitting diode is provided to include a substrate; a light emitting structure disposed on the substrate, and including first and second semiconductor layers; a transparent electrode in ohmic contact with the second semiconductor layer; a contact electrode disposed on the first semiconductor layer; a current spreader disposed on the transparent electrode; a first insulation reflection layer covering the substrate, the light emitting structure, the transparent electrode, the contact electrode, and the current spreader, having openings exposing portions of the contact electrode and the current spreader, and including a distributed Bragg reflector; first and second pad electrodes disposed on the first insulation reflection layer and connected to the contact electrode and the current spreader through the openings; and a second insulation reflection layer disposed under the substrate and including a distributed Bragg reflector.
    Type: Application
    Filed: February 15, 2023
    Publication date: July 6, 2023
    Inventors: Se Hee OH, Sang Won WOO, Wan Tae LIM
  • Patent number: 10991857
    Abstract: A method of fabricating a light emitting device package includes forming a plurality of semiconductor light emitting parts, each having a first conductive semiconductor layer, an active layer, and a second conductive semiconductor layer on a growth substrate, forming a partition structure having a plurality of light emitting windows on the growth substrate, filling each of the plurality of light emitting windows with a resin having a phosphor, and forming a plurality of wavelength conversion parts by planarizing a surface of the resin.
    Type: Grant
    Filed: June 17, 2019
    Date of Patent: April 27, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Wan Tae Lim, Sung Hyun Sim, Hanul Yoo, Yong Il Kim, Hye Seok Noh, Ji Hye Yeon
  • Patent number: 10903397
    Abstract: A light emitting device package may include: a light emitting structure including a plurality of light emitting regions configured to emit light, respectively; a plurality of light adjusting layers formed above the light emitting regions to change characteristics of the light emitted from the light emitting regions, respectively; a plurality of electrodes configured to control the light emitting regions to emit the light, respectively; and an isolation insulating layer disposed between the light emitting regions to insulate the light emitting regions from one another, the isolation insulating layer forming a continuous structure with respect to the light emitting regions.
    Type: Grant
    Filed: April 17, 2020
    Date of Patent: January 26, 2021
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong Il Kim, Hyong Sik Won, Wan Tae Lim, Nam Goo Cha
  • Patent number: 10770436
    Abstract: A light-emitting diode (LED) device configured to provide a multi-color display includes a plurality of light-emitting cells at least partially defined by a partition layer. The LED device may be configured to reduce optical interferences between the light-emitting cells. The LED device includes a plurality of light-emitting structures spaced apart from one another; a plurality of electrode layers on respective first surfaces of the light-emitting structures, a separation layer configured to electrically insulate the light-emitting structures from each other; phosphor layers on respective second surfaces of the light-emitting structures and associated with different colors, and a partition layer between the phosphor layers to separate the phosphor layers from one another. Each light-emitting cell may include a separate light-emitting structure, a separate set of one or more electrodes, and a separate phosphor layer.
    Type: Grant
    Filed: October 24, 2019
    Date of Patent: September 8, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ji-hye Yeon, Wan-tae Lim, Young-soo Park, Jung-sub Kim, Jin-sub Lee, Ha-nul Yoo, Hye-seok Noh
  • Patent number: 10763399
    Abstract: A light emitting device package includes a light emitting structure including a first light emitting cell, a second light emitting cell, and a third light emitting cell, each of the first to third light emitting cells including an active layer to emit light of a first wavelength in a first direction and being separated from each other in a second direction, orthogonal to the first direction, a first light adjusting portion including a first wavelength conversion layer in a first recess portion of the first light emitting cell, the first wavelength conversion layer to convert light of the first wavelength to light of a second wavelength, and a second light adjusting portion including a second wavelength conversion layer in a second recess portion of the second light emitting cell, the second wavelength conversion layer to convert light of the first wavelength to light of a third wavelength.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: September 1, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Dong Gun Lee, Yong Il Kim, Young Soo Park, Jin Sub Lee, Wan Tae Lim
  • Patent number: 10734559
    Abstract: A light-emitting diode (LED) package includes a light-emitting structure, an optical wavelength conversion layer on the light-emitting structure, and an optical filter layer on the optical wavelength conversion layer. The light-emitting structure includes a first-conductivity-type semiconductor layer, an active layer on the first-conductivity-type semiconductor layer, and a second-conductivity-type semiconductor layer on the active layer, and emits first light having a first peak wavelength. The optical wavelength conversion layer absorbs the first light emitted from the light-emitting structure and emits second light having a second peak wavelength different from the first peak wavelength. The optical filter layer reflects the first light emitted from the light-emitting structure and transmits the second light emitted from the optical wavelength conversion layer.
    Type: Grant
    Filed: March 22, 2019
    Date of Patent: August 4, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ha-nul Yoo, Yong-il Kim, Nam-goo Cha, Wan-tae Lim, Kyung-wook Hwang, Sung-hyun Sim, Hye-seok Noh
  • Publication number: 20200243723
    Abstract: A light emitting device package may include: a light emitting structure including a plurality of light emitting regions configured to emit light, respectively; a plurality of light adjusting layers formed above the light emitting regions to change characteristics of the light emitted from the light emitting regions, respectively; a plurality of electrodes configured to control the light emitting regions to emit the light, respectively; and an isolation insulating layer disposed between the light emitting regions to insulate the light emitting regions from one another, the isolation insulating layer forming a continuous structure with respect to the light emitting regions.
    Type: Application
    Filed: April 17, 2020
    Publication date: July 30, 2020
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong Il KIM, Hyong Sik WON, Wan Tae LIM, Nam Goo CHA
  • Patent number: 10636940
    Abstract: A semiconductor light-emitting device includes a light-emitting structure including a first conductivity-type semiconductor layer, an active layer, and a second conductivity-type semiconductor layer, and a magnetic layer on the light-emitting structure. The magnetic layer may have at least one magnetization direction that is parallel to an upper surface of the active layer. The magnetic layer may generate a magnetic field that is parallel to the upper surface of the active layer. The magnetic layer may include multiple structures that may have different magnetization directions. Multiple magnetic layers may be included on the light-emitting structure. A magnetic layer may be on a contact electrode. A magnetic layer may be isolated from a pad electrode.
    Type: Grant
    Filed: April 28, 2016
    Date of Patent: April 28, 2020
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Wan Tae Lim, Yong Il Kim, Nam Goo Cha, Sung Hyun Sim
  • Patent number: 10629782
    Abstract: A light emitting device package may include: a light emitting structure including a plurality of light emitting regions configured to emit light, respectively; a plurality of light adjusting layers formed above the light emitting regions to change characteristics of the light emitted from the light emitting regions, respectively; a plurality of electrodes configured to control the light emitting regions to emit the light, respectively; and an isolation insulating layer disposed between the light emitting regions to insulate the light emitting regions from one another, the isolation insulating layer forming a continuous structure with respect to the light emitting regions.
    Type: Grant
    Filed: January 23, 2019
    Date of Patent: April 21, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong Il Kim, Hyong Sik Won, Wan Tae Lim, Nam Goo Cha
  • Publication number: 20200066689
    Abstract: A light-emitting diode (LED) device configured to provide a multi-color display includes a plurality of light-emitting cells at least partially defined by a partition layer. The LED device may be configured to reduce optical interferences between the light-emitting cells. The LED device includes a plurality of light-emitting structures spaced apart from one another; a plurality of electrode layers on respective first surfaces of the light-emitting structures, a separation layer configured to electrically insulate the light-emitting structures from each other; phosphor layers on respective second surfaces of the light-emitting structures and associated with different colors, and a partition layer between the phosphor layers to separate the phosphor layers from one another. Each light-emitting cell may include a separate light-emitting structure, a separate set of one or more electrodes, and a separate phosphor layer.
    Type: Application
    Filed: October 24, 2019
    Publication date: February 27, 2020
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Ji-hye YEON, Wan-tae LIM, Young-soo PARK, Jung-sub KIM, Jin-sub LEE, Ha-nul YOO, Hye-seok NOH
  • Patent number: 10573628
    Abstract: A light emitting device package includes a cell array including a plurality of semiconductor light emitting units, and having a first surface and a second surface opposite the first surface, each of the plurality of semiconductor light emitting units having a first conductive semiconductor layer, an active layer, and a second conductive semiconductor layer stacked on each other.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: February 25, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Yong Il Kim, Wan Tae Lim, Young Jin Choi, Sung Hyun Sim
  • Patent number: 10566382
    Abstract: A semiconductor light emitting device includes a plurality of light emitting cells including a first conductivity type semiconductor layer, a second conductivity type semiconductor layer, and an active layer between the first and second conductivity type semiconductor layers, an insulating layer on the plurality of light emitting cells and having a first opening and a second opening defining a first contact region of the first conductivity type semiconductor layer and a second contact region of the second conductivity type semiconductor layer, respectively, in each of the plurality of light emitting cells, a connection electrode on the insulating layer and connecting the first contact region and the second contact region to electrically connect the plurality of light emitting cells to each other, a transparent support substrate on the insulating layer and the connection electrode, and a transparent bonding layer between the insulating layer and the transparent support substrate.
    Type: Grant
    Filed: October 20, 2017
    Date of Patent: February 18, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ji Hye Yeon, Han Kyu Seong, Wan Tae Lim, Sung Hyun Sim, Hanul Yoo
  • Patent number: 10566502
    Abstract: A semiconductor light-emitting device includes a light-emitting stack including a first conductivity-type semiconductor layer, a second conductivity-type semiconductor layer, and an active layer disposed between the first conductivity-type semiconductor layer and the second conductivity-type semiconductor layer, a wavelength conversion layer disposed on the light-emitting stack and configured to convert at least some of light having a first wavelength, emitted from the active layer, into light having a second wavelength, and a light control layer disposed between the light-emitting stack and the wavelength conversion layer, and including a first insulating layer and a second insulating layer, the first insulating layer having a refractive index lower than a refractive index of the light-emitting stack, and the second insulating layer having a refractive index higher than a refractive index of the first insulating layer by 0.5 or more.
    Type: Grant
    Filed: June 2, 2016
    Date of Patent: February 18, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Kyung Wook Hwang, Si Han Kim, Wan Tae Lim, Eun Joo Shin
  • Patent number: 10553641
    Abstract: A light emitting device package includes a substrate for growth having a plurality of light-emitting windows, a plurality of semiconductor light-emitting units corresponding to the plurality of light-emitting windows, each semiconductor light-emitting unit having a first surface contacting the substrate for growth and a second surface opposite the first surface, and each semiconductor light-emitting unit having a first conductivity-type semiconductor layer, an active layer, and a second conductivity-type semiconductor layer stacked on each other, a plurality of wavelength conversion units respectively disposed inside the plurality of light-emitting windows, each wavelength conversion unit is configured to provide light having a wavelength different from light emitted by the respective semiconductor light-emitting unit, a metal support layer disposed on at least one surface of each of the plurality of semiconductor light-emitting units and having a lateral surface coplanar with a lateral surface of the substra
    Type: Grant
    Filed: March 23, 2018
    Date of Patent: February 4, 2020
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Ji Hye Yeon, Sung Hyun Sim, Wan Tae Lim, Yong Il Kim, Hanul Yoo
  • Patent number: 10497683
    Abstract: A light-emitting diode (LED) device configured to provide a multi-color display includes a plurality of light-emitting cells at least partially defined by a partition layer. The LED device may be configured to reduce optical interferences between the light-emitting cells. The LED device includes a plurality of light-emitting structures spaced apart from one another; a plurality of electrode layers on respective first surfaces of the light-emitting structures, a separation layer configured to electrically insulate the light-emitting structures from each other; phosphor layers on respective second surfaces of the light-emitting structures and associated with different colors, and a partition layer between the phosphor layers to separate the phosphor layers from one another. Each light-emitting cell may include a separate light-emitting structure, a separate set of one or more electrodes, and a separate phosphor layer.
    Type: Grant
    Filed: November 1, 2018
    Date of Patent: December 3, 2019
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ji-hye Yeon, Wan-tae Lim, Young-soo Park, Jung-sub Kim, Jin-sub Lee, Ha-nul Yoo, Hye-seok Noh
  • Publication number: 20190312182
    Abstract: A method of fabricating a light emitting device package includes forming a plurality of semiconductor light emitting parts, each having a first conductive semiconductor layer, an active layer, and a second conductive semiconductor layer on a growth substrate, forming a partition structure having a plurality of light emitting windows on the growth substrate, filling each of the plurality of light emitting windows with a resin having a phosphor, and forming a plurality of wavelength conversion parts by planarizing a surface of the resin.
    Type: Application
    Filed: June 17, 2019
    Publication date: October 10, 2019
    Inventors: Wan Tae LIM, Sung Hyun SIM, Hanul YOO, YONG IL KIM, Hye Seok NOH, Ji Hye YEON
  • Patent number: 10403608
    Abstract: A light-emitting diode (LED) device includes a plurality of light-emitting structures spaced apart from each other; a plurality of electrode layers on first surfaces of the plurality of light-emitting structures, respectively; a protection layer on second surfaces of each of the plurality of light-emitting structures, respectively; a separation layer to electrically insulate the plurality of light-emitting structures from each other and electrically insulate the plurality of electrode layers from each other; a plurality of phosphor layers on second surfaces of the plurality of light-emitting structures, respectively, each of the plurality of the phosphor layers each to output a different color of light; and a partitioning layer between the phosphor layers and separating the plurality of phosphor layers from each other, the partitioning layer including a substrate structure, an insulation structure, or a metal structure.
    Type: Grant
    Filed: December 6, 2017
    Date of Patent: September 3, 2019
    Assignee: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Sung-hyun Sim, Yong-il Kim, Wan-tae Lim, Ji-hye Yeon, Ha-nul Yoo
  • Publication number: 20190221730
    Abstract: A light-emitting diode (LED) package includes a light-emitting structure, an optical wavelength conversion layer on the light-emitting structure, and an optical filter layer on the optical wavelength conversion layer. The light-emitting structure includes a first-conductivity-type semiconductor layer, an active layer on the first-conductivity-type semiconductor layer, and a second-conductivity-type semiconductor layer on the active layer, and emits first light having a first peak wavelength. The optical wavelength conversion layer absorbs the first light emitted from the light-emitting structure and emits second light having a second peak wavelength different from the first peak wavelength. The optical filter layer reflects the first light emitted from the light-emitting structure and transmits the second light emitted from the optical wavelength conversion layer.
    Type: Application
    Filed: March 22, 2019
    Publication date: July 18, 2019
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Ha-nul Yoo, Yong-il Kim, Nam-goo Cha, Wan-tae Lim, Kyung-wook Hwang, Sung-hyun Sim, Hye-seok Noh