Patents by Inventor Il-Soo Kim

Il-Soo 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: 20250221095
    Abstract: Discussed are a light-emitting element and a display device including the light-emitting element. The light-emitting element in one example includes a first semiconductor layer, a first light-emitting layer disposed on the first semiconductor layer, a tunnel layer disposed on the first light-emitting layer, a second light-emitting layer disposed on the tunnel layer and configured to emit light with a wavelength different from a wavelength of light emitted from the first light-emitting layer, and a second semiconductor layer disposed on the second light-emitting layer. The first light-emitting layer includes a plurality of first sub-light-emitting layers configured to emit light with different wavelengths. The second light-emitting layer includes a plurality of second sub-light-emitting layers configured to emit light with different wavelengths.
    Type: Application
    Filed: October 10, 2024
    Publication date: July 3, 2025
    Applicant: LG Display Co., Ltd.
    Inventors: IL-SOO KIM, YONGSEOK KWAK, MYUNGSOO HAN, HYOWON KWON
  • Publication number: 20240250216
    Abstract: Disclosed is a display apparatus including a light-emitting device having a light-emitting structure including a first semiconductor layer, an active layer and a second semiconductor layer, a passivation layer covering surfaces of the light-emitting structure. The light-emitting device includes at least one first electrode coupled to the first semiconductor layer and at least one second electrode coupled to the second semiconductor layer. A first electrode includes a first upper portion extending through the passivation layer to contact the first semiconductor layer, a first side portion, and a first lower portion on a portion of a side surface and a lower surface of the light-emitting structure, respectively. A second electrode includes a second upper portion extending through the passivation layer to contact the second semiconductor layer, a second side portion and a second lower portion on a portion of the side surface and the lower surface of the light-emitting structure, respectively.
    Type: Application
    Filed: January 24, 2024
    Publication date: July 25, 2024
    Inventors: Il-Soo KIM, Myungsoo HAN, Hyowon KWON
  • Publication number: 20240250212
    Abstract: Disclosed is a light-emitting device including a light-emitting structure including a first semiconductor layer, an active layer, and a second semiconductor layer; a first electrode connected to the first semiconductor layer; and a second electrode connected to the second semiconductor layer, wherein an energy bandgap of the first semiconductor layer decreases as the first semiconductor layer extends away from the active layer.
    Type: Application
    Filed: December 27, 2023
    Publication date: July 25, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Il-Soo KIM, Myungsoo HAN, Jung-Hun CHOI, Hyowon KWON, Dongwon YANG
  • Publication number: 20240178345
    Abstract: A display apparatus includes a package substrate in which a plurality of circuit elements are disposed, wherein the package substrate includes a holder area; and a light-emitting device, wherein the light-emitting device includes: a nitride semiconductor structure including a first semiconductor layer, an active layer, and a second semiconductor layer disposed sequentially; and a passivation pattern disposed on an outer surface of the nitride semiconductor structure, wherein the first semiconductor layer includes a protrusion, the protrusion protrudes in a direction away from the active layer, wherein the protrusion is disposed in the holder area.
    Type: Application
    Filed: September 12, 2023
    Publication date: May 30, 2024
    Applicant: LG DISPLAY CO., LTD.
    Inventors: Hyowon KWON, Il-Soo KIM
  • Publication number: 20240178266
    Abstract: According to an aspect of the present disclosure, a light emitting device and a display apparatus including the same are discussed. The light emitting device can include an n-type electrode, a first n-type layer disposed on the n-type electrode, a first active layer disposed on the first n-type layer, a first p-type layer disposed on the first active layer, a p-type electrode disposed on the first p-type layer, a second p-type layer disposed on a partial area of the p-type electrode, a second active layer disposed on the second p-type layer, and a second n-type layer disposed on the second active layer.
    Type: Application
    Filed: September 26, 2023
    Publication date: May 30, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Il-Soo Kim, YongSeok Kwak, Myungsoo Han, Hyowon Kwon
  • Publication number: 20240154057
    Abstract: A light-emitting device can include a semiconductor structure including a undoped semiconductor layer, a superlattice layer, a first semiconductor layer, a light-emitting layer, and a second semiconductor layer; a protective layer disposed on a side surface of the semiconductor structure; a first electrode electrically connected to the first semiconductor layer; and a second electrode electrically connected to the second semiconductor layer. Also, a recess is formed in the undoped semiconductor layer and the superlattice layer, and the recess exposes a portion of a surface of the first semiconductor layer.
    Type: Application
    Filed: August 10, 2023
    Publication date: May 9, 2024
    Applicant: LG Display Co., Ltd.
    Inventors: Il-Soo KIM, Hyowon KWON
  • Patent number: 11978650
    Abstract: The present disclosure relates to an apparatus for transferring a light emitting diode (LED). The apparatus for transferring an LED includes: a pick-up unit configured to pick up at least some of multiple light emitting diodes (LEDs) arranged on one substrate, and, according to a received control signal, put down LEDs selected from among the picked-up LEDs on another substrate; and a controller configured to transmit the control signal to the pick-up unit so as to enable the pick-up unit to individually pick up or put down each of the multiple LEDs.
    Type: Grant
    Filed: September 21, 2020
    Date of Patent: May 7, 2024
    Assignee: LG Display Co., Ltd.
    Inventors: Seong Kyong Park, Tae Il Jung, Il Soo Kim, Jae Yong Choi
  • Patent number: 11923480
    Abstract: A light-emitting device and a display device using the same are disclosed. The light-emitting device improves the reliability of a process of disposing light-emitting devices. The light-emitting device is configured to ensure electrical connections even if the light-emitting device is inverted while being disposed on a substrate. The light-emitting device includes an n-type semiconductor layer and a p-type semiconductor layer. N-type electrodes and p-type electrodes are disposed on both sides of top and bottom surfaces of the light-emitting device. Contact holes are provided to electrically connect one of the n-type electrodes to the n-type semiconductor layer and one of the p-type electrodes to the p-type semiconductor layer. When the light-emitting device is inverted while being disposed on a substrate, the light-emitting device operates ordinarily, thereby reducing the defect rate of a display device.
    Type: Grant
    Filed: March 17, 2022
    Date of Patent: March 5, 2024
    Assignee: LG DISPLAY CO., LTD.
    Inventors: Taeil Jung, Il-Soo Kim, YongSeok Kwak
  • Patent number: 11903453
    Abstract: The present invention discloses a tilting controller that measures foot-related human biomechanical data. The tilting controller for measuring foot-related human biomechanical data includes a mechanism having a foot hold on which a rear foot portion is placed, and a control module that tilts the foot hold by controlling the mechanism portion.
    Type: Grant
    Filed: May 7, 2020
    Date of Patent: February 20, 2024
    Inventor: Il Soo Kim
  • Publication number: 20230414439
    Abstract: A gait assistive device that may be used to improve a gait disability by replacing or compensating movement of joints of an ankle and a foot that occur during a gait or that may be used for a bottom structure of a gait robot is disclosed. The present invention provides a gait assistive device including: a foot supporting part; a rear connecting part coupled to a heel portion of the foot supporting part; and a rearfoot plate coupled to the rear connecting part, wherein the rear connecting part may include a joint, and a shaft of the joint is installed on a line or rear line of a load line at heel strike during a gait cycle based on a direction of a gait.
    Type: Application
    Filed: September 8, 2023
    Publication date: December 28, 2023
    Inventor: Il Soo KIM
  • Publication number: 20230335577
    Abstract: There is provided a display device. The display device includes a plurality of semiconductor elements disposed on a substrate; a plurality of LEDs disposed on the plurality of semiconductor elements and electrically connected to the plurality of semiconductor elements, respectively; and a plurality of reflectors disposed above the semiconductor elements and each located between every two of the LEDs. The plurality of LEDs may include a plurality of respective light-emitting layers disposed on the plurality of semiconductor elements, and a common electrode disposed on the plurality of light-emitting layers. The reflectors are disposed between the LEDs, so that light emitted from LEDs does not travel toward the side portions of the LEDs but toward the above of the substrate, thereby improving the light extraction efficiency and suppressing color mixture.
    Type: Application
    Filed: June 26, 2023
    Publication date: October 19, 2023
    Inventors: Joonyeong PARK, Taeil JUNG, Il-Soo KIM
  • Patent number: 11786435
    Abstract: A gait assistive device that may be used to improve a gait disability by replacing or compensating movement of joints of an ankle and a foot that occur during a gait or that may be used for a bottom structure of a gait robot is disclosed. The present invention provides a gait assistive device including: a foot supporting part; a rear connecting part coupled to a heel portion of the foot supporting part; and a rearfoot plate coupled to the rear connecting part, wherein the rear connecting part may include a joint, and a shaft of the joint is installed on a line or rear line of a load line at heel strike during a gait cycle based on a direction of a gait.
    Type: Grant
    Filed: April 9, 2020
    Date of Patent: October 17, 2023
    Inventor: Il Soo Kim
  • Patent number: 11721718
    Abstract: There is provided a display device. The display device includes a plurality of semiconductor elements disposed on a substrate; a plurality of LEDs disposed on the plurality of semiconductor elements and electrically connected to the plurality of semiconductor elements, respectively; and a plurality of reflectors disposed above the semiconductor elements and each located between every two of the LEDs. The plurality of LEDs may include a plurality of respective light-emitting layers disposed on the plurality of semiconductor elements, and a common electrode disposed on the plurality of light-emitting layers. The reflectors are disposed between the LEDs, so that light emitted from LEDs does not travel toward the side portions of the LEDs but toward the above of the substrate, thereby improving the light extraction efficiency and suppressing color mixture.
    Type: Grant
    Filed: March 18, 2021
    Date of Patent: August 8, 2023
    Assignee: LG Display Co., Ltd.
    Inventors: Joonyeong Park, Taeil Jung, Il-Soo Kim
  • Publication number: 20230215993
    Abstract: A display device according to an embodiment of the present disclosure includes a substrate on which a plurality of sub-pixels are defined, a plurality of LEDs disposed in each of the plurality of sub-pixels, and a plurality of color conversion layers covering the plurality of LEDs. The plurality of color conversion layers each include a plurality of color conversion material layers that are stacked to be spaced apart from each other. Accordingly, according to the present disclosure, it is possible to minimize or reduce light lost inside the color conversion layer by separating the plurality of color conversion material layers from each other, and improve color conversion efficiency and luminance.
    Type: Application
    Filed: November 2, 2022
    Publication date: July 6, 2023
    Inventors: Il-Soo Kim, YongSeok Kwak, KyuOh Kwon, SeungJun Lee
  • Publication number: 20220209072
    Abstract: A light-emitting device and a display device using the same are disclosed. The light-emitting device improves the reliability of a process of disposing light-emitting devices. The light-emitting device is configured to ensure electrical connections even if the light-emitting device is inverted while being disposed on a substrate. The light-emitting device includes an n-type semiconductor layer and a p-type semiconductor layer. N-type electrodes and p-type electrodes are disposed on both sides of top and bottom surfaces of the light-emitting device. Contact holes are provided to electrically connect one of the n-type electrodes to the n-type semiconductor layer and one of the p-type electrodes to the p-type semiconductor layer. When the light-emitting device is inverted while being disposed on a substrate, the light-emitting device operates ordinarily, thereby reducing the defect rate of a display device.
    Type: Application
    Filed: March 17, 2022
    Publication date: June 30, 2022
    Applicant: LG Display Co., Ltd.
    Inventors: Taeil JUNG, Il-Soo KIM, YongSeok KWAK
  • Patent number: 11364877
    Abstract: A wiper linkage system directly transmits rotating force of a motor to one wiper arm. The wiper linkage system includes: a gear housing installed on a wiper motor, a pipe rod installed on the gear housing, a crank arm installed on an output shaft of the wiper motor, a first wiper arm installed on a first end of the crank arm by a rotating shaft, a pivot housing assembled with the pipe rod, and a second wiper arm operated by a link structure including a link unit coupled to a second end of the crank arm and the pivot housing. In particular, a first end of the pipe rod is fixed to a vehicle body by a pipe mounting.
    Type: Grant
    Filed: July 16, 2020
    Date of Patent: June 21, 2022
    Assignees: HYUNDAI MOTOR COMPANY, KIA MOTORS CORPORATION, DY AUTO Corporation
    Inventors: Su-Hak Gwon, Il-Soo Kim, Seong-Jin Hong, Jung-Kwan Choi
  • Publication number: 20220139748
    Abstract: The present disclosure relates to an apparatus for transferring a light emitting diode (LED). The apparatus for transferring an LED includes: a pick-up unit configured to pick up at least some of multiple light emitting diodes (LEDs) arranged on one substrate, and, according to a received control signal, put down LEDs selected from among the picked-up LEDs on another substrate; and a controller configured to transmit the control signal to the pick-up unit so as to enable the pick-up unit to individually pick up or put down each of the multiple LEDs.
    Type: Application
    Filed: September 21, 2020
    Publication date: May 5, 2022
    Inventors: Seong Kyong Park, Tae Il Jung, Il Soo Kim, Jae Yong Choi
  • Patent number: 11309458
    Abstract: A light-emitting device and a display device using the same. The light-emitting device improves the reliability of a process of disposing light-emitting devices. The light-emitting device is configured to ensure electrical connections even if the light-emitting device is inverted while being disposed on a substrate. The light-emitting device includes an n-type semiconductor layer and a p-type semiconductor layer. N-type electrodes and p-type electrodes are disposed on both sides of top and bottom surfaces of the light-emitting device. Contact holes are provided to electrically connect one of the n-type electrodes to the n-type semiconductor layer and one of the p-type electrodes to the p-type semiconductor layer. When the light-emitting device is inverted while being disposed on a substrate, the light-emitting device operates ordinarily, thereby reducing the defect rate of a display device.
    Type: Grant
    Filed: May 19, 2020
    Date of Patent: April 19, 2022
    Assignee: LG Display Co., Ltd
    Inventors: Taeil Jung, Il-Soo Kim, YongSeok Kwak
  • Patent number: 11246377
    Abstract: The present invention discloses a weight-bearing structure of high-heel footwear that is coupled to an outsole of high-heeled footwear, or in which a sole cover part becomes an outsole of the high-heeled footwear to linearly contact the ground during a loading response. An embodiment of the present invention provides a weight-bearing structure of high-heeled footwear, including: a heel part linearly contacting the ground; a strut part extending from the heel part; and a sole cover part extending from the strut part.
    Type: Grant
    Filed: July 5, 2019
    Date of Patent: February 15, 2022
    Inventor: Il Soo Kim
  • Publication number: 20220020906
    Abstract: According to an aspect of the present disclosure, a display device having a plurality of pixels each including a plurality of sub-pixels, includes a first substrate; a plurality of first pads disposed on the first substrate in the plurality of sub-pixels; a common pad disposed on the first substrate and shared by the plurality of sub-pixels; a second substrate disposed to face the first substrate; a plurality of first electrodes disposed on the second substrate and connected to the plurality of first pads; a second electrode disposed on the second substrate and connected to the common pad; and a plurality of light emitting nanorods having one ends and the other ends respectively connected to the plurality of first electrodes and the second electrode. Therefore, self-aligning of the light emitting nanorods can be easily achieved.
    Type: Application
    Filed: July 15, 2021
    Publication date: January 20, 2022
    Applicant: LG Display Co., Ltd.
    Inventors: IL-SOO KIM, TAEIL JUNG, SEONGKYONG PARK