Patents by Inventor Myoung Hak YANG

Myoung Hak YANG 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: 20250143049
    Abstract: A display device including a base substrate having a front surface and a rear surface, and including a first recess portion recessed from the front surface, a plurality of outer electrodes disposed on the base substrate, a light emitting device disposed in the first recess portion and configured to emit light in a direction away from the base substrate, the light emitting device including a light emitting structure electrically connected to the outer electrodes.
    Type: Application
    Filed: January 6, 2025
    Publication date: May 1, 2025
    Inventor: Myoung Hak YANG
  • Patent number: 12288775
    Abstract: A light emitting device including a board, a first stacked structure configured to emit light having a first wavelength, a second stacked structure configured to emit light having a second wavelength, a third stacked structure configured to emit light having a third wavelength, a first connection electrode electrically connected to the first stacked structure, the second stacked structure, and the third stacked structure, and a protection material covering at least a portion of the first connection electrode, in which each of the first, second, and third stacked structures is configured to selectively emit light while being connected to the first connection electrode, and the protection material is configured to transmit at least 50% of light having the first wavelength, light having the second wavelength, and light having the third wavelength upon operation of each of the first, second, and third stacked structures.
    Type: Grant
    Filed: February 20, 2023
    Date of Patent: April 29, 2025
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Jong Min Jang, Chang Yeon Kim, Myoung Hak Yang
  • Publication number: 20240097094
    Abstract: A display device including a base substrate having a front surface and a rear surface, and including a first recess portion recessed from the front surface, a plurality of outer electrodes disposed on the base substrate, a light emitting device disposed in the first recess portion and configured to emit light in a direction away from the base substrate, the light emitting device including a light emitting structure electrically connected to the outer electrodes.
    Type: Application
    Filed: November 27, 2023
    Publication date: March 21, 2024
    Inventor: Myoung Hak YANG
  • Publication number: 20240088197
    Abstract: A light emitting chip including a first LED sub-unit, a second LED sub-unit disposed on the first LED sub-unit, a third LED sub-unit disposed on the second LED sub-unit, a first bonding layer interposed between the first and second LED sub-units, a second bonding layer interposed between second and third LED sub-units, and a first connection electrode electrically connected to and overlapping at least one of the first, second, and third LED sub-units, the first connection electrode having first and second opposing side surfaces, the first side surface having a first length and the second side surface having a second length, in which the difference in length between the first side surface and the second side surface of the first connection electrode is greater than a thickness of at least one of the LED sub-units.
    Type: Application
    Filed: November 20, 2023
    Publication date: March 14, 2024
    Applicant: Seoul Viosys Co., Ltd.
    Inventors: Jong Min JANG, Chang Yeon KIM, Myoung Hak YANG
  • Patent number: 11855121
    Abstract: A light emitting chip including a first LED sub-unit, a second LED sub-unit disposed on the first LED sub-unit, a third LED sub-unit disposed on the second LED sub-unit, a first bonding layer interposed between the first and second LED sub-units, a second bonding layer interposed between second and third LED sub-units, and a first connection electrode electrically connected to and overlapping at least one of the first, second, and third LED sub-units, the first connection electrode having first and second opposing side surfaces, the first side surface having a first length and the second side surface having a second length, in which the difference in length between the first side surface and the second side surface of the first connection electrode is greater than a thickness of at least one of the LED sub-units.
    Type: Grant
    Filed: April 15, 2020
    Date of Patent: December 26, 2023
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Min Jang, Chang Yeon Kim, Myoung Hak Yang
  • Publication number: 20230387178
    Abstract: A light emitting module including a substrate, a first light emitter, a second light emitter, and a third light emitter, in which at least two of the first, second, and third emitters are disposed one over another, connection electrodes electrically connected to at least one of the first, second, and third light emitters, a passivation layer covering at least one side surface of the connection electrodes and exposing at least a region of the first light emitter, and a first electrode electrically connected to at least one of the connection electrodes, in which the first electrode is electrically connected to at least one of the first, second, and third electrodes through the at least one of the connection electrodes, and at least one of connection electrodes overlaps side surfaces of two or more of the first, second, and third light emitters in a plan view.
    Type: Application
    Filed: August 10, 2023
    Publication date: November 30, 2023
    Inventors: Jong Min JANG, Chang Yeon Kim, Myoung Hak Yang
  • Patent number: 11830968
    Abstract: A display device including a base substrate having a front surface and a rear surface, and including a first recess portion recessed from the front surface, a plurality of outer electrodes disposed on the base substrate, a light emitting device disposed in the first recess portion and configured to emit light in a direction away from the base substrate, the light emitting device including a light emitting structure electrically connected to the outer electrodes.
    Type: Grant
    Filed: October 15, 2021
    Date of Patent: November 28, 2023
    Assignee: Seoul Viosys Co., Ltd.
    Inventor: Myoung Hak Yang
  • Patent number: 11804566
    Abstract: A light emitting device includes a first light emitting part including a first n-type semiconductor layer, and a first mesa structure including a first active layer, a first p-type semiconductor layer, and a first transparent electrode vertically stacked one over another and exposing a portion of a first surface of the first n-type semiconductor layer, a second light emitting part spaced apart from the first mesa structure, and including a second n-type semiconductor layer, a second active layer, a second p-type semiconductor layer, and a second transparent electrode and exposing a portion of a first surface of the second n-type semiconductor layer, and a first bonding layer on which the first and second light emitting parts are disposed and electrically coupling the first n-type semiconductor layer and the second n-type semiconductor layer to each other.
    Type: Grant
    Filed: October 4, 2022
    Date of Patent: October 31, 2023
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Min Jang, Chang Yeon Kim, Myoung Hak Yang
  • Patent number: 11756980
    Abstract: A light emitting package includes a first LED sub-unit having first and second opposed surfaces, a second LED sub-unit disposed on the second surface of the first LED sub-unit, a third LED sub-unit disposed on the second LED sub-unit, a plurality of connection electrodes having side surfaces and electrically connected to at least one of the LED sub-units, the connection electrodes covering a side surface of at least one of the LED sub-units, a first passivation layer surrounding at least the sides surfaces of the connection electrodes, the first passivation layer exposing at least a portion of the first surface of the first LED sub-unit, a substrate having first and second opposed surfaces, with the first surface of the substrate facing the LED sub-units, and a first electrode disposed on the first surface of the substrate and connected to at least one of the connection electrodes.
    Type: Grant
    Filed: April 26, 2020
    Date of Patent: September 12, 2023
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Min Jang, Chang Yeon Kim, Myoung Hak Yang
  • Publication number: 20230207538
    Abstract: A light emitting device including a board, a first stacked structure configured to emit light having a first wavelength, a second stacked structure configured to emit light having a second wavelength, a third stacked structure configured to emit light having a third wavelength, a first connection electrode electrically connected to the first stacked structure, the second stacked structure, and the third stacked structure, and a protection material covering at least a portion of the first connection electrode, in which each of the first, second, and third stacked structures is configured to selectively emit light while being connected to the first connection electrode, and the protection material is configured to transmit at least 50% of light having the first wavelength, light having the second wavelength, and light having the third wavelength upon operation of each of the first, second, and third stacked structures.
    Type: Application
    Filed: February 20, 2023
    Publication date: June 29, 2023
    Inventors: Jong Min JANG, Chang Yeon KIM, Myoung Hak YANG
  • Patent number: 11587914
    Abstract: A light emitting chip including a first LED sub-unit, a second LED sub-unit disposed on the first LED sub-unit, a third LED sub-unit disposed on the second LED sub-unit, a passivation layer disposed on the third LED sub-unit, and a first connection electrode electrically connected to at least one of the first, second, and third LED sub-units, in which the first connection electrode and the third LED sub-unit form a first angle defined between an upper surface of the third LED sub-unit and an inner surface of the first connection electrode that is less than about 80°.
    Type: Grant
    Filed: April 19, 2020
    Date of Patent: February 21, 2023
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Min Jang, Chang Yeon Kim, Myoung Hak Yang
  • Publication number: 20230025374
    Abstract: A light emitting device includes a first light emitting part including a first n-type semiconductor layer, and a first mesa structure including a first active layer, a first p-type semiconductor layer, and a first transparent electrode vertically stacked one over another and exposing a portion of a first surface of the first n-type semiconductor layer, a second light emitting part spaced apart from the first mesa structure, and including a second n-type semiconductor layer, a second active layer, a second p-type semiconductor layer, and a second transparent electrode and exposing a portion of a first surface of the second n-type semiconductor layer, and a first bonding layer on which the first and second light emitting parts are disposed and electrically coupling the first n-type semiconductor layer and the second n-type semiconductor layer to each other.
    Type: Application
    Filed: October 4, 2022
    Publication date: January 26, 2023
    Inventors: Jong Min JANG, Chang Yeon KIM, Myoung Hak YANG
  • Patent number: 11469342
    Abstract: A method of manufacturing a light emitting device including forming first light emitting parts on a first substrate, the first light emitting part including a first n-type semiconductor layer and a first mesa structure including a first active layer, a first p-type semiconductor layer, and a first electrode and exposing a portion of the first n-type semiconductor layer, forming second light emitting parts on a second substrate, the second light emitting part including a second n-type semiconductor layer and a second mesa structure including a second active layer, a second p-type semiconductor layer, and a second electrode and exposing a portion of the second n-type semiconductor layer, attaching a first removable carrier onto the second light emitting parts and enclosing the second light emitting parts, removing the second substrate from the second light emitting parts, and bonding the second light emitting parts to the first light emitting parts.
    Type: Grant
    Filed: December 3, 2020
    Date of Patent: October 11, 2022
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Min Jang, Chang Yeon Kim, Myoung Hak Yang
  • Publication number: 20220093837
    Abstract: A display device including a base substrate having a front surface and a rear surface, and including a first recess portion recessed from the front surface, a plurality of outer electrodes disposed on the base substrate, a light emitting device disposed in the first recess portion and configured to emit light in a direction away from the base substrate, the light emitting device including a light emitting structure electrically connected to the outer electrodes.
    Type: Application
    Filed: October 15, 2021
    Publication date: March 24, 2022
    Inventor: Myoung Hak YANG
  • Patent number: 11152553
    Abstract: A light emitting device package including a base substrate having a front surface and a rear surface, and including a first recess portion recessed from the front surface, a plurality of outer electrodes disposed on the front surface, a light emitting device disposed in the first recess portion and configured to emit light in a direction away from the base substrate, and including a substrate, a light emitting structure disposed on the substrate, and a plurality of bump electrodes disposed on the substrate, and a plurality of connection electrodes connecting the light emitting device to the outer electrodes, in which an upper surface of the bump electrodes and an upper surface of the outer electrodes are disposed on substantially the same plane, and each of the connection electrodes is disposed on one of the bump electrodes and one of the outer electrodes that are adjacent to each other.
    Type: Grant
    Filed: January 9, 2020
    Date of Patent: October 19, 2021
    Inventor: Myoung Hak Yang
  • Publication number: 20210091256
    Abstract: A method of manufacturing a light emitting device including forming first light emitting parts on a first substrate, the first light emitting part including a first n-type semiconductor layer and a first mesa structure including a first active layer, a first p-type semiconductor layer, and a first electrode and exposing a portion of the first n-type semiconductor layer, forming second light emitting parts on a second substrate, the second light emitting part including a second n-type semiconductor layer and a second mesa structure including a second active layer, a second p-type semiconductor layer, and a second electrode and exposing a portion of the second n-type semiconductor layer, attaching a first removable carrier onto the second light emitting parts and enclosing the second light emitting parts, removing the second substrate from the second light emitting parts, and bonding the second light emitting parts to the first light emitting parts.
    Type: Application
    Filed: December 3, 2020
    Publication date: March 25, 2021
    Inventors: Jong Min JANG, Chang Yeon KIM, Myoung Hak YANG
  • Patent number: 10879419
    Abstract: A light emitting device including a first light emitting part including a first n-type semiconductor layer, and a first mesa structure including a first active layer, a first p-type semiconductor layer, and a first transparent electrode vertically stacked one over another and exposing a portion of a first surface the first n-type semiconductor layer, a second light emitting part disposed on the exposed portion of the first n-type semiconductor layer and spaced apart from the first mesa structure, and including a second n-type semiconductor layer, a second active layer, a second p-type semiconductor layer, and a second transparent electrode, and a first bonding part bonding and electrically coupling the first n-type semiconductor layer and the second n-type semiconductor layer to each other.
    Type: Grant
    Filed: August 9, 2019
    Date of Patent: December 29, 2020
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Min Jang, Chang Yeon Kim, Myoung Hak Yang
  • Publication number: 20200365647
    Abstract: A light emitting chip including a first LED sub-unit, a second LED sub-unit disposed on the first LED sub-unit, a third LED sub-unit disposed on the second LED sub-unit, a first bonding layer interposed between the first and second LED sub-units, a second bonding layer interposed between second and third LED sub-units, and a first connection electrode electrically connected to and overlapping at least one of the first, second, and third LED sub-units, the first connection electrode having first and second opposing side surfaces, the first side surface having a first length and the second side surface having a second length, in which the difference in length between the first side surface and the second side surface of the first connection electrode is greater than a thickness of at least one of the LED sub-units.
    Type: Application
    Filed: April 15, 2020
    Publication date: November 19, 2020
    Inventors: Jong Min JANG, Chang Yeon KIM, Myoung Hak YANG
  • Publication number: 20200365649
    Abstract: A light emitting package includes a first LED sub-unit having first and second opposed surfaces, a second LED sub-unit disposed on the second surface of the first LED sub-unit, a third LED sub-unit disposed on the second LED sub-unit, a plurality of connection electrodes having side surfaces and electrically connected to at least one of the LED sub-units, the connection electrodes covering a side surface of at least one of the LED sub-units, a first passivation layer surrounding at least the sides surfaces of the connection electrodes, the first passivation layer exposing at least a portion of the first surface of the first LED sub-unit, a substrate having first and second opposed surfaces, with the first surface of the substrate facing the LED sub-units, and a first electrode disposed on the first surface of the substrate and connected to at least one of the connection electrodes.
    Type: Application
    Filed: April 26, 2020
    Publication date: November 19, 2020
    Inventors: Jong Min JANG, Chang Yeon KIM, Myoung Hak YANG
  • Publication number: 20200365568
    Abstract: A light emitting chip including a first LED sub-unit, a second LED sub-unit disposed on the first LED sub-unit, a third LED sub-unit disposed on the second LED sub-unit, a passivation layer disposed on the third LED sub-unit, and a first connection electrode electrically connected to at least one of the first, second, and third LED sub-units, in which the first connection electrode and the third LED sub-unit form a first angle defined between an upper surface of the third LED sub-unit and an inner surface of the first connection electrode that is less than about 80°.
    Type: Application
    Filed: April 19, 2020
    Publication date: November 19, 2020
    Inventors: Jong Min JANG, Chang Yeon KIM, Myoung Hak YANG