Patents by Inventor Chang-Yeon Kim

Chang-Yeon Kim 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: 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
  • Patent number: 12279031
    Abstract: The camera module includes a base, a first lens assembly and a second lens assembly disposed and moved within the base, and a third lens assembly disposed and fixed to the base. The first lens assembly includes a first lens barrel in which a first lens is disposed, and a first driver housing in which a first driving part is disposed, and the second lens assembly comprises a second lens barrel in which a second lens is disposed. The second driving part housing may include a second driving part. The base may include a base stopper that limits strokes of the first lens assembly and the second lens assembly. The lens housing of the third lens assembly may include a barrel stopper to limit strokes of the first lens assembly and the second lens assembly.
    Type: Grant
    Filed: January 5, 2024
    Date of Patent: April 15, 2025
    Assignee: LG INNOTEK CO., LTD.
    Inventors: Kyung Won Kim, Hyun Gyu Roh, Chang Yeon Kim
  • Publication number: 20250105221
    Abstract: A light emitting device including first, second, and third light emitting stacks each including first and second conductivity type semiconductor layers, a first lower contact electrode in ohmic contact with the first light emitting stack, and second and third lower contact electrodes respectively in ohmic contact with the second conductivity type semiconductor layers of the second and third light emitting stacks, in which the first lower contact electrode is disposed between the first and second light emitting stacks, the second and third lower contact electrodes are disposed between the second and third light emitting stacks, and the first, second, and third lower contact electrodes include transparent conductive oxide layers.
    Type: Application
    Filed: December 10, 2024
    Publication date: March 27, 2025
    Applicant: SEOUL VIOSYS CO., LTD.
    Inventors: Jong Min JANG, Chang Yeon KIM
  • Publication number: 20250076827
    Abstract: Embodiments of the present disclosure relate to an attitude adjustment apparatus and method capable of adjusting attitude of a target object. An attitude adjustment apparatus includes a base part, a first part rotatably coupled to the base part, a second part fixedly coupled to a target object and rotatably coupled to the first part, and a controller adjusts an attitude of the target object by controlling the rotation of the first and second parts, wherein the base part and the first part include motors, which generate driving force, sensing portions, which generate a magnetic field and detects changes in the magnetic field, and targets, which are rotated by the driving force from the motors and include blades that change the generated magnetic field. The controller determines a rotation angle of the motors by referencing identification information of reference blades, among the blades, and sensing results from the sensing portions.
    Type: Application
    Filed: December 8, 2023
    Publication date: March 6, 2025
    Applicant: Hanwha Vision Co., Ltd.
    Inventors: Chang Yeon KIM, Won Joon KONG, Kyoung Jae LEE
  • Publication number: 20250070100
    Abstract: A light emitting device including a first LED sub-unit having a thickness in a first direction, a second LED sub-unit disposed on a portion of the first LED sub-unit in the first direction, each of the first and second LED sub-units comprising a first-type semiconductor layer, a second-type semiconductor layer, and an active layer, a reflective electrode disposed adjacent to the first LED sub-unit and electrically connected to the first-type semiconductor layer of the first LED sub-unit, and a first ohmic electrode forming ohmic contact with the second-type semiconductor layer of the first LED sub-unit, in which the active layer of the first LED sub-unit is configured to generate light, includes AlxGa(1-x-y)InyP (0?x?1, 0?y?1), and overlaps the active layer of the second LED sub-unit in the first direction, and the active layer of the second LED sub-unit includes the same material as the active layer of the first LED sub-unit.
    Type: Application
    Filed: November 7, 2024
    Publication date: February 27, 2025
    Applicant: Seoul Viosys Co., Ltd.
    Inventors: Jong Hyeon CHAE, Chang Yeon KIM, Ho Joon LEE, Seong Gyu JANG, Chung Hoon LEE, Dae Sung CHO
  • Patent number: 12205933
    Abstract: A light emitting device including first, second, and third light emitting stacks each including first and second conductivity type semiconductor layers, a first lower contact electrode in ohmic contact with the first light emitting stack, and second and third lower contact electrodes respectively in ohmic contact with the second conductivity type semiconductor layers of the second and third light emitting stacks, in which the first lower contact electrode is disposed between the first and second light emitting stacks, the second and third lower contact electrodes are disposed between the second and third light emitting stacks, and the first, second, and third lower contact electrodes include transparent conductive oxide layers.
    Type: Grant
    Filed: August 23, 2023
    Date of Patent: January 21, 2025
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Jong Min Jang, Chang Yeon Kim
  • Publication number: 20250023006
    Abstract: A light emitting device including a first light emitting stack, a second light emitting stack, and a third light emitting stack each including a first conductivity type semiconductor layer and a second conductivity type semiconductor layer, a first adhesive layer bonding the first light emitting stack and the second light emitting stack, and a second adhesive layer bonding the second light emitting stack and the third light emitting stack, in which the second light emitting stack is disposed between the first light emitting stack and the third light emitting stack, and one of the first adhesive layer and the second adhesive layer electrically connects adjacent light emitting stacks.
    Type: Application
    Filed: September 26, 2024
    Publication date: January 16, 2025
    Applicant: SEOUL VIOSYS CO., LTD.
    Inventors: Jong Min JANG, Chang Yeon KIM
  • Publication number: 20240421134
    Abstract: A display apparatus including a substrate, and pixel regions and at least one separation region between the pixel regions, each pixel region including a first LED stack, a second LED stack adjacent to the first LED stack, a third LED stack adjacent to the second LED stack and each having a side surface forming a first angle, a second angle, and a third angle with the substrate, respectively, electrode pads electrically connected to the first, second, and third LED stacks, and an insulation layer disposed on at least one of the first, second, and third LED stacks, in which the first LED stack is configured to emit light having a longer peak wavelength than that emitted from the second and third LED stacks, and the first angle is different from the second and third angles.
    Type: Application
    Filed: August 28, 2024
    Publication date: December 19, 2024
    Applicant: SEOUL VIOSYS CO., LTD.
    Inventors: Jong Hyeon CHAE, Chang Yeon KIM, Seong Gyu JANG, Ho Joon LEE, Jong Min JANG, Dae Sung CHO
  • Publication number: 20240421135
    Abstract: A light emitting device including a first light emitting part including a first n-type semiconductor layer, a first active layer, a first p-type semiconductor layer, and a first transparent electrode, a second light emitting part disposed over the first light emitting part 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 third light emitting part disposed over the second light emitting part and including a third n-type semiconductor layer, a third active layer, a third p-type semiconductor layer, and a third transparent electrode, in which the light emitting device has substantially a quadrangular shape when viewed from the top, and has first to fourth corners.
    Type: Application
    Filed: August 27, 2024
    Publication date: December 19, 2024
    Applicant: SEOUL VIOSYS CO., LTD.
    Inventors: Jong Min JANG, Chang Yeon KIM
  • Patent number: 12159966
    Abstract: A light emitting device including a first light emitter, a second light emitter, and a third light emitter, each including a first conductivity type semiconductor layer and a second conductivity type semiconductor layer. An adhesive layer includes a first adhesive portion disposed between the first light emitter, and the second light emitter, and a second adhesive portion disposed between the second light emitter and the third light emitter, in which the second light emitter is disposed between the first light emitter and the third light emitter, and the first adhesive portion and the second adhesive portion are optically transmitting and connect adjacent light emitters.
    Type: Grant
    Filed: May 22, 2023
    Date of Patent: December 3, 2024
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Min Jang, Chang Yeon Kim
  • Publication number: 20240387482
    Abstract: A light emitting device for a display including: a base layer; a first LED sub-unit, a second LED sub-unit, and a third LED sub-unit on the base layer; and a supporting layer covering the first LED sub-unit, the second LED sub-unit, and the third LED sub-unit, in which the third LED sub-unit is configured to emit light having a shorter wavelength than that of light emitted from the first LED sub-unit, and to emit light having a longer wavelength than that of light emitted from the second LED sub-unit, and a luminous intensity ratio of light emitted from the third LED sub-unit and the second LED sub-unit is configured to be about 6:1.
    Type: Application
    Filed: July 30, 2024
    Publication date: November 21, 2024
    Applicant: SEOUL VIOSYS CO., LTD.
    Inventors: Jong Min JANG, Chang Yeon KIM
  • Patent number: 12142602
    Abstract: A light emitting device including a first LED sub-unit having a thickness in a first direction, a second LED sub-unit disposed on a portion of the first LED sub-unit in the first direction, each of the first and second LED sub-units comprising a first-type semiconductor layer, a second-type semiconductor layer, and an active layer, a reflective electrode disposed adjacent to the first LED sub-unit and electrically connected to the first-type semiconductor layer of the first LED sub-unit, and a first ohmic electrode forming ohmic contact with the second-type semiconductor layer of the first LED sub-unit, in which the active layer of the first LED sub-unit is configured to generate light, includes AlxGa(1-x-y)InyP (0?x?1, 0?y?1), and overlaps the active layer of the second LED sub-unit in the first direction, and the active layer of the second LED sub-unit includes the same material as the active layer of the first LED sub-unit.
    Type: Grant
    Filed: June 20, 2022
    Date of Patent: November 12, 2024
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Hyeon Chae, Chang Yeon Kim, Ho Joon Lee, Seong Gyu Jang, Chung Hoon Lee, Dae Sung Cho
  • Publication number: 20240363675
    Abstract: A light emitting diode (LED) stack for a display including a first LED stack including a first conductivity-type semiconductor layer and a second conductivity-type semiconductor layer, a second LED stack disposed on the first LED stack, a third LED stack disposed on the second LED stack, an intermediate bonding layer disposed between the first LED stack and the second LED stack to bond the second LED stack to the first LED stack, an upper bonding layer disposed between the second LED stack and the third LED stack to couple the third LED stack to the second LED stack, and a first hydrophilic material layer disposed between the first LED stack and the upper bonding layer.
    Type: Application
    Filed: July 9, 2024
    Publication date: October 31, 2024
    Applicant: SEOUL VIOSYS CO., LTD.
    Inventors: Jong Hyeon CHAE, Seong Gyu JANG, Ho Joon LEE, Chang Yeon KIM, Chung Hoon LEE
  • Publication number: 20240355991
    Abstract: A light emitting device including a first light emitting part, a second light emitting part disposed on a first surface of the first light emitting part, and a third light emitting part disposed on a first surface of the second light emitting part, a first contact member contacting a surface of a second n-type semiconductor layer of the second light emitting part, an ohmic electrode electrically connected to a third p-type semiconductor layer of the third light emitting part, and an adhesive layer disposed between the second light emitting part and the third light emitting part, in which the first contact member extends toward the first light emitting part to be electrically connected to a first n-type semiconductor layer of the first light emitting part, and the adhesive layer extends toward the ohmic electrode.
    Type: Application
    Filed: July 3, 2024
    Publication date: October 24, 2024
    Applicant: Seoul Viosys Co., Ltd.
    Inventors: Jong Min JANG, Chang Yeon KIM
  • Patent number: 12125831
    Abstract: A light emitting device for a display including: a base layer; a first LED sub-unit, a second LED sub-unit, and a third LED sub-unit on the base layer; and a supporting layer covering the first LED sub-unit, the second LED sub-unit, and the third LED sub-unit, in which the third LED sub-unit is configured to emit light having a shorter wavelength than that of light emitted from the first LED sub-unit, and a luminous intensity ratio of light emitted from the third LED sub-unit and the second LED sub-unit is configured to be about 6:1.
    Type: Grant
    Filed: August 8, 2023
    Date of Patent: October 22, 2024
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Jong Min Jang, Chang Yeon Kim
  • Publication number: 20240339488
    Abstract: A light emitting diode (LED) pixel for a display including a first LED stack having a first well layer, a second LED stack disposed on the first LED stack and having a second well layer, a third LED stack disposed on the second LED stack and having a third well layer, a first electrode disposed on the first LED stack and in ohmic contact with the first LED stack, a second electrode disposed on the second LED stack and in ohmic contact with a surface of the second LED stack, and a third electrode in ohmic contact with a surface of the third LED stack, in which the first well layer includes at least one base material different from that of the second well layer.
    Type: Application
    Filed: June 17, 2024
    Publication date: October 10, 2024
    Applicant: SEOUL VIOSYS CO., LTD.
    Inventors: Jong Hyeon CHAE, Chung Hoon LEE, Seong Gyu JANG, Chang Yeon KIM, Ho Joon LEE
  • Patent number: 12107081
    Abstract: A display apparatus including a substrate, and pixel regions and at least one separation region between the pixel regions, each pixel region including a first LED stack, a second LED stack adjacent to the first LED stack, a third LED stack adjacent to the second LED stack and each having a side surface forming a first angle, a second angle, and a third angle with the substrate, respectively, electrode pads electrically connected to the first, second, and third LED stacks, and an insulation layer disposed on at least one of the first, second, and third LED stacks, in which the first LED stack is configured to emit light having a longer peak wavelength than that emitted from the second and third LED stacks, and the first angle is different from the second and third angles.
    Type: Grant
    Filed: December 7, 2022
    Date of Patent: October 1, 2024
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Jong Hyeon Chae, Chang Yeon Kim, Seong Gyu Jang, Ho Joon Lee, Jong Min Jang, Dae Sung Cho
  • Patent number: 12100696
    Abstract: A light emitting diode pixel for a display including a first LED sub-unit, a second LED sub-unit disposed on a portion of the first LED sub-unit, a third LED sub-unit disposed on a portion of the second LED sub-unit, and a reflective electrode disposed adjacent to the first LED sub-unit, in which each of the first to third LED sub-units comprises an n-type semiconductor layer and a p-type semiconductor layer, each of the n-type semiconductor layers of the first, second, and third LED stacks is electrically connected to the reflective electrode, and the first LED sub-unit, the second LED sub-unit, and the third LED sub-unit are configured to be independently driven.
    Type: Grant
    Filed: November 26, 2018
    Date of Patent: September 24, 2024
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Hyeon Chae, Chang Yeon Kim, Ho Joon Lee, Seong Gyu Jang, Chung Hoon Lee, Dae Sung Cho
  • Patent number: 12100695
    Abstract: A light emitting device including a first light emitting part including a first n-type semiconductor layer, a first active layer, a first p-type semiconductor layer, and a first transparent electrode, a second light emitting part disposed over the first light emitting part 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 third light emitting part disposed over the second light emitting part and including a third n-type semiconductor layer, a third active layer, a third p-type semiconductor layer, and a third transparent electrode, in which the light emitting device has substantially a quadrangular shape when viewed from the top, and has first to fourth corners.
    Type: Grant
    Filed: July 24, 2023
    Date of Patent: September 24, 2024
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Jong Min Jang, Chang Yeon Kim
  • Publication number: 20240302712
    Abstract: A camera module including a base, and a first lens assembly and a second lens assembly disposed in the base and configured to move in an optical axis direction, a first yoke disposed on the first lens assembly, a second yoke on the second lens assembly, a first magnet on the first yoke, a second magnet disposed on the second yoke, a first coil in the base and opposite to the first magnet, and a second coil disposed in the base and opposite to the second magnet. The first lens assembly includes a first lens barrel and a first driving part housing extended from the first lens barrel in the optical axis direction. The first yoke is on the first driving part housing and extended along the optical axis direction. At least one first portion of the first yoke is overlapped by the first magnet in the optical axis direction.
    Type: Application
    Filed: April 8, 2024
    Publication date: September 12, 2024
    Applicant: LG INNOTEK CO., LTD.
    Inventors: Kyung Won KIM, Chang Yeon KIM, Hyun Gyu ROH