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).

  • Publication number: 20230205060
    Abstract: A camera mount assembly includes a base configured to be fixed to a support surface, wherein the base includes a first circuit board therein; a mount configured to have a camera mounted thereon, wherein the mount is further configured to rotate about a common axis with respect to the base, and the mount includes a second circuit board therein; a guide frame on one from among the mount and the base, the guide frame including a cam profile; and a cam bolt fixed to the other from among the mount and the base, wherein, based on the mount rotating with respect to the base, one side of the cam bolt is configured to move along the cam profile formed in the guide frame such that a size of a gap between the base and the mount varies.
    Type: Application
    Filed: July 1, 2022
    Publication date: June 29, 2023
    Applicant: HANWHA TECHWIN CO., LTD.
    Inventors: Byeong Ho LEE, Chang Yeon KIM, Byung Moon JUN
  • Patent number: 11688840
    Abstract: A light emitting device including a first light emitting stack, a second light emitting stack disposed under the first light emitting stack, a third light emitting stack disposed under the second light emitting stack, first, second, third, and fourth connection electrodes disposed over the first light emitting stack, and electrically connected to the first, second, and third light emitting stacks, and bonding metal layers disposed on upper surfaces of the first, second, third, and fourth connection electrodes, in which each of the first, second, third, and fourth connection electrodes includes a groove on an upper surface thereof, and the bonding metal layers cover the grooves of the first, second, third, and fourth connection electrodes, respectively.
    Type: Grant
    Filed: December 23, 2020
    Date of Patent: June 27, 2023
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Min Jang, Sung Hyun Lee, Chang Yeon Kim
  • Patent number: 11689806
    Abstract: A photo sensor assembly may include: a rotator configured to rotate together with a camera module; a plurality of first photo interrupter bars disposed at a same interval along a first circumference on the rotator; a second photo interrupter bar disposed at a second circumference on the rotator; a first photo sensor disposed closer to the first circumference than to the second circumference, and configured to detect a first light-blocking pattern generated from the plurality of first photo interrupter bars; a second photo sensor disposed closer to the second circumference than to the first circumference, and configured to detect a second light-blocking pattern generated from the second photo interrupter bar; and a processor configured to estimate an initial position of the rotator based on the second light-blocking pattern and estimate a rotational angle from the initial position of the rotator based on the detected first light-blocking pattern.
    Type: Grant
    Filed: March 12, 2021
    Date of Patent: June 27, 2023
    Assignee: HANWHA TECHWIN CO., LTD.
    Inventors: Chang Yeon Kim, Won Joon Kong, Jong In Park, Kyoung Jae Lee, Ho Seoung Hwang
  • Patent number: 11664409
    Abstract: A light emitting diode (LED) stack for a display including a substrate, a first LED stack disposed on the substrate, a second LED stack disposed on the first LED stack, a third LED stack disposed on the second LED stack, a first color filter interposed between the first LED stack and the second LED stack, and a second color filter interposed between the second LED stack and the third LED stack, in which the second LED stack and the third LED stack are configured to transmit light generated from the first LED stack to the outside, and the third LED stack is configured to transmit light generated from the second LED stack to the outside.
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: May 30, 2023
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Hyeon Chae, Chung Hoon Lee, Seong Gyu Jang, Chang Yeon Kim, Ho Joon Lee
  • Patent number: 11664410
    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: Grant
    Filed: November 4, 2021
    Date of Patent: May 30, 2023
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Hyeon Chae, Seong Gyu Jang, Ho Joon Lee, Chang Yeon Kim, Chung Hoon Lee
  • Patent number: 11658275
    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: Grant
    Filed: October 21, 2020
    Date of Patent: May 23, 2023
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Min Jang, Chang Yeon Kim
  • Patent number: 11650041
    Abstract: A magnetic sensor assembly for detecting angular positions of a camera module, includes: a housing; a rotation member configured to rotate together with the camera module; a magnet member that is configured to rotate with the rotation member on at least a portion of the housing, the magnet member includes a first multi-pole magnetized magnet that has a first number of pole pairs alternately disposed along a first circumference on the rotation member, and further includes a second multi-pole magnetized magnet that has a second number of pole pairs alternately disposed along a second circumference on the rotation member; a hall sensor configured to detect a change of magnetic field generated from the first multi-pole magnetized magnet and the second multi-pole magnetized magnet; and a processor configured to estimate an initial position of the rotation member and a rotational angle from the initial position using the detected magnetic field.
    Type: Grant
    Filed: March 15, 2021
    Date of Patent: May 16, 2023
    Assignee: HANWHA TECHWIN CO., LTD.
    Inventors: Chang Yeon Kim, Won Joon Kong, Jong In Park, Kyoung Jae Lee
  • Publication number: 20230143510
    Abstract: A light emitting device for a display including a transparent member laterally extending in a first direction and having a first region and a second region surrounding the first region, first to third light emission regions disposed on the transparent member, a support substrate, first to fourth electrode pads disposed between the transparent member and the support substrate, and vias electrically connecting the electrode pads to the light emission regions, respectively, in which the fourth electrode pad is electrically connected to at least one of the vias, each light emission region is disposed in the first region and does not overlap the second region in a second direction, and the fourth electrode pad overlaps one of the vias and one of the light emission regions in the second direction, and the one of the vias and the one of the light emission regions are separated from each other.
    Type: Application
    Filed: December 12, 2022
    Publication date: May 11, 2023
    Inventors: Jong Hyeon CHAE, Chung Hoon LEE, Chang Yeon KIM, Seong Gyu JANG, Ho Joon LEE, Jong Min JANG
  • Publication number: 20230128703
    Abstract: A light emitting device for a display 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, electrode pads disposed below the first LED sub-unit, and a planarization layer disposed between the first and second LED sub-units and being light transmissive, in which the electrode pads include a common electrode pad electrically connected in common to the first, second, and third LED sub-units, first, second, and third electrode pads connected to the first, second, and third LED sub-units, respectively, the first, second, and third LED sub-units are independently drivable, light generated in the first LED sub-unit is configured to be emitted to the outside through the second and third LED sub-units, and light generated in the second LED sub-unit is configured to be emitted to the outside through the third LED sub-unit.
    Type: Application
    Filed: December 22, 2022
    Publication date: April 27, 2023
    Inventors: Chang Yeon KIM, Jong Hyeon CHAE, Jong Min JANG, Ho Joon LEE, Seong Gyu JANG
  • Publication number: 20230120546
    Abstract: A camera assembly includes a motor configured to generate a driving power; a motor shaft that extends from the motor, such as to define a first axis, and is configured to rotate by the driving power of the motor; a pulley configured to rotate on a second axis, that is spaced from the first axis, according to rotation of the motor shaft; a belt configured to couple the motor shaft and the pulley, and convert the rotation of the motor shaft to rotation of the pulley, and tension of the belt applies a force to the motor shaft in a direction towards the second axis; a camera module configured to be mounted on the pulley and rotate together with the pulley; and an elastic body configured to apply a biasing force to the motor shaft such as to bias the motor shaft in a direction away from the second axis.
    Type: Application
    Filed: December 19, 2022
    Publication date: April 20, 2023
    Applicant: Hanwha Techwin Co., Ltd.
    Inventors: Chang Yeon KIM, Byeong Ho LEE, Hye Jin YU
  • Patent number: 11626554
    Abstract: A light emitting device including a first light emitting part, a second light emitting part, and a third light emitting part each including an n-type semiconductor layer, a p-type semiconductor layer, and an active layer therebetween, a first contact member electrically contacting a first surface of the n-type semiconductor layer of the second light emitting part; and a second contact member electrically contacting the n-type semiconductor layer of the third light emitting part, in which the first contact member extends to the first light emitting part to electrically contact the n-type semiconductor layer of the first light emitting part, the first contact member and the second contact member overlap one another, and the second contact member has a width that gradually decreases in a downward direction.
    Type: Grant
    Filed: August 25, 2022
    Date of Patent: April 11, 2023
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Min Jang, Chang Yeon Kim
  • Publication number: 20230107772
    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: December 7, 2022
    Publication date: April 6, 2023
    Inventors: Jong Hyeon CHAE, Chang Yeon KIM, Seong Gyu JANG, Ho Joon LEE, Jong Min JANG, Dae Sung CHO
  • Patent number: 11610939
    Abstract: A light emitting diode (LED) pixel for a display including a first LED stack, a second LED stack disposed on a partial region of the first LED stack, a third LED stack disposed on a partial region of the second LED stack, a first ohmic electrode disposed on the first LED stack and forming ohmic contact with the first LED stack, a second transparent electrode disposed between the second LED stack and the third LED stack and in ohmic contact with an upper surface of the second LED stack, and a third transparent electrode in ohmic contact with an upper surface of the third LED stack, in which the first ohmic electrode is laterally spaced apart from the second LED stack.
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: March 21, 2023
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Hyeon Chae, Chung Hoon Lee, Seong Gyu Jang, Chang Yeon Kim, Ho Joon Lee
  • Publication number: 20230077749
    Abstract: A camera driving device is provided. The camera driving device includes: a motor configured to generate a driving force; an input pulley attached to the motor; a gear assembly including a first gear coupled to the input pulley by a first timing belt, and a second gear formed coaxially with the first gear, the second gear configured to rotate together with the first gear; and an output pulley configured to rotate together with the second gear by a second timing belt, wherein a reduction is made according to a gear transmission ratio between the input pulley and the first gear, a reduction is made according to a gear transmission ratio between the second gear and the output pulley, and a rotation shaft of the output pulley is positioned between a rotation shaft of the input pulley and a rotation shaft of the first gear.
    Type: Application
    Filed: February 1, 2022
    Publication date: March 16, 2023
    Applicant: HANWHA TECHWIN CO., LTD.
    Inventors: Chang Yeon KIM, Byeong Ho LEE, Hye Jin YU, Byung Moon JUN
  • 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: 11563052
    Abstract: A light emitting diode (LED) pixel for a display including a substrate, a first LED stack disposed on the substrate, a second LED stack disposed on the first LED stack, a third LED stack disposed on the second LED stack, and through-hole vias formed through the substrate, in which each of the first, second, and third LED stacks includes a first conductivity type semiconductor layer and a second conductivity type semiconductor layer, and each of the through-hole vias is electrically connected to at least one of the first, second, and third LED stacks.
    Type: Grant
    Filed: July 2, 2021
    Date of Patent: January 24, 2023
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Hyeon Chae, Chung Hoon Lee, Seong Gyu Jang, Chang Yeon Kim, Ho Joon Lee
  • Patent number: 11552057
    Abstract: A light emitting device for a display includes first LED sub-unit, second LED, and third LED sub-units, an insulating layer substantially covering the first, second, and third LED sub-units, and electrode pads electrically connected to the first, second, and third LED sub-units, in which the first LED sub-unit is disposed on a partial region of the second LED sub-unit, the second LED sub-unit is disposed on a partial region of the third LED sub-unit, the insulating layer has openings for electrical connection between the electrode pads, a common electrode pad is connected to the first, second, and third LED sub-units through the openings in the insulating layer, first, second, and third electrode pads are connected to the first, second, and third LED sub-units, respectively, through at least one of the openings, and the first, second, and third LED sub-units are configured to be independently driven using the electrode pads.
    Type: Grant
    Filed: November 22, 2018
    Date of Patent: January 10, 2023
    Assignee: 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: 20220406983
    Abstract: A light emitting device including a first light emitting part, a second light emitting part, and a third light emitting part each including an n-type semiconductor layer, a p-type semiconductor layer, and an active layer therebetween, a first contact member electrically contacting a first surface of the n-type semiconductor layer of the second light emitting part; and a second contact member electrically contacting the n-type semiconductor layer of the third light emitting part, in which the first contact member extends to the first light emitting part to electrically contact the n-type semiconductor layer of the first light emitting part, the first contact member and the second contact member overlap one another, and the second contact member has a width that gradually decreases in a downward direction.
    Type: Application
    Filed: August 25, 2022
    Publication date: December 22, 2022
    Inventors: Jong Min JANG, Chang Yeon KIM
  • Patent number: 11532664
    Abstract: A light emitting diode (LED) stack for a display including a first LED sub-unit configured to emit a first colored light, a second LED sub-unit disposed on the first LED sub-unit and configured to emit a second colored light, and a third LED sub-unit disposed on at least one of the first LED sub-unit and the second LED sub-unit and configured to emit a third colored light, in which the first LED sub-unit is configured to emit light through the second LED sub-unit and the third LED sub-unit, and the second LED sub-unit is configured to emit light through the third LED sub-unit.
    Type: Grant
    Filed: June 29, 2020
    Date of Patent: December 20, 2022
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Hyeon Chae, Chung Hoon Lee, Seong Gyu Jang, Chang Yeon Kim, Ho Joon Lee