Patents by Inventor Jong Hyeon Chae

Jong Hyeon Chae 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: 20220028921
    Abstract: A light emitting device including a substrate, first and second light emitting diodes (LEDs) each including first and second semiconductor layers, a first upper electrode disposed on the second LED, electrically connected to the first LED, and insulated from the second semiconductor layer of the first LED, and a second upper electrode disposed on the second LED, electrically connected to the second LED, and insulated from the second semiconductor layer of the second LED, in which a portion of the substrate between the LEDs does not overlap the semiconductor layers, the first upper electrode has a portion electrically connected to the second semiconductor layer of the second LED and covering the first portion and portions of the LEDs, and the second upper electrode has a groove partially enclosing the portion of the first upper electrode in a plan view.
    Type: Application
    Filed: October 4, 2021
    Publication date: January 27, 2022
    Inventors: Jong Min Jang, Jong Hyeon Chae, Joon Sup Lee, Daewoong Suh, Hyun A Kim, Won Young Roh, Min Woo Kang
  • Patent number: 11222994
    Abstract: A light emitting diode pixel for a display including a substrate, a first LED sub-unit disposed on the substrate, a second LED sub-unit disposed on the first LED sub-unit, a third LED sub-unit disposed on at least one of the first and second LED sub-units, and vias formed in the substrate, in which each of the first to third LED sub-units comprises a first conductivity type semiconductor layer and a second conductivity type semiconductor layer, and each of the vias is electrically connected to at least one of the first, second, and third LED sub-units.
    Type: Grant
    Filed: November 22, 2018
    Date of Patent: January 11, 2022
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Chang Yeon Kim, Jong Hyeon Chae, Chung Hoon Lee, Seong Gyu Jang, Jong Min Jang, Ho Joon Lee
  • Publication number: 20220005792
    Abstract: A light emitting device including a first LED stack, a second LED stack disposed under the first LED stack, a third LED stack disposed under the second LED stack, and a plurality of pillars disposed adjacent to side surfaces of the first, second, and third LED stacks, the pillars including a first pillar commonly electrically connected to the first, second, and third LED stacks, and a second pillar, a third pillar, and a fourth pillar electrically connected to the first, second, and third LED stacks, respectively.
    Type: Application
    Filed: January 15, 2021
    Publication date: January 6, 2022
    Inventor: Jong Hyeon CHAE
  • Publication number: 20220005971
    Abstract: A light emitting diode (LED) pixel for a display including a light emitting structure including at least one active layer and configured to generate light, a first passivation layer covering the light emitting structure, a protection structure disposed on the first passivation layer, a plurality of lower via contacts passing through the first passivation layer and electrically connected to the light emitting structure; and a plurality of upper via contacts passing through the protection structure and electrically connected to the lower via contacts, respectively, in which the lower via contacts and the upper via contacts are disposed outside of the at least one active layer.
    Type: Application
    Filed: September 14, 2021
    Publication date: January 6, 2022
    Inventors: Chang Yeon Kim, Jong Hyeon Chae, Chung Hoon Lee, Seong Gyu Jang, Jong Min Jang, Ho Joon Lee
  • Patent number: 11217569
    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 filler disposed between the electrode pads, in which the electrode pads include a common electrode pad electrically connected in common to the first, second, and third LED sub-units, and 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 of the light emitting device 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: Grant
    Filed: February 13, 2020
    Date of Patent: January 4, 2022
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Chang Yeon Kim, Jong Hyeon Chae, Jong Min Jang, Ho Joon Lee, Seong Gyu Jang
  • Patent number: 11183620
    Abstract: A light emitting diode having a plurality of light emitting cells is provided. The light emitting diode according to an exemplary embodiment includes a lower insulation layer covering an ohmic reflection layer, connectors disposed on the lower insulation layer to connect the light emitting cells, and an upper insulation layer covering the connectors and the lower insulation layer. An edge of the lower insulation layer is spaced apart farther from an edge of the upper insulation layer than an edge of the light emitting cell. The lower insulation layer susceptible to moisture may be protected and reliability of the light emitting diode may improve.
    Type: Grant
    Filed: May 28, 2019
    Date of Patent: November 23, 2021
    Assignee: SEOUL VIOSYS CO., LTD.
    Inventors: Se Hee Oh, Hyun A Kim, Jong Kyu Kim, Jong Hyeon Chae
  • Patent number: 11177413
    Abstract: A light emitting diode pixel for a display including a substrate, a first LED sub-unit disposed on the substrate, a second LED sub-unit disposed on the first LED sub-unit, a third LED sub-unit disposed on at least one of the first and second LED sub-units, and vias formed in the substrate, in which each of the first to third LED sub-units comprises a first conductivity type semiconductor layer and a second conductivity type semiconductor layer, and each of the vias is electrically connected to at least one of the first, second, and third LED sub-units.
    Type: Grant
    Filed: November 22, 2018
    Date of Patent: November 16, 2021
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Chang Yeon Kim, Jong Hyeon Chae, Chung Hoon Lee, Seong Gyu Jang, Jong Min Jang, Ho Joon Lee
  • Publication number: 20210351230
    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: Application
    Filed: July 2, 2021
    Publication date: November 11, 2021
    Inventors: Jong Hyeon CHAE, Chung Hoon LEE, Seong Gyu JANG, Chang Yeon KIM, Ho Joon LEE
  • Publication number: 20210335887
    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: Application
    Filed: July 2, 2021
    Publication date: October 28, 2021
    Inventors: Jong Hyeon CHAE, Chung Hoon Lee, Seong Gyu Jang, Chang Yeon Kim, Ho Joon Lee
  • Publication number: 20210335886
    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: Application
    Filed: July 2, 2021
    Publication date: October 28, 2021
    Inventors: Jong Hyeon CHAE, Chung Hoon Lee, Seong Gyu Jang, Chang Yeon Kim, Ho Joon Lee
  • Publication number: 20210313303
    Abstract: A displaying apparatus includes a pixel unit. The pixel unit includes at least one pixel having a light emitting device and a light conversion layer for converting a first wavelength of light of the light emitting device into a second wavelength of light different from the first wavelength; and an insulation layer covers side surfaces of the light emitting device and the light conversion layer.
    Type: Application
    Filed: June 21, 2021
    Publication date: October 7, 2021
    Inventors: Motonobu TAKEYA, Seong Su SON, Jong IK LEE, Jae Hee LIM, Jong Hyeon CHAE, Seung Sik HONG
  • Patent number: 11139338
    Abstract: A light emitting device including a substrate, first and second light emitting diodes disposed thereon and including a first semiconductor layer, an active layer, and a second semiconductor layer, a first upper electrode electrically connected to the first semiconductor layer and insulated from the second semiconductor layer of the first light emitting diode, a second upper electrode electrically connected to the first semiconductor layer and insulated from the second semiconductor layer of the second light emitting diode, in which the first and second light emitting diodes are spaced apart from each other to expose the substrate, the first upper electrode has a protrusion electrically connected to the second semiconductor layer of the second light emitting diode and covering portions of the exposed substrate, the first light emitting diode, and the second light emitting diode, and the second upper electrode has a groove.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: October 5, 2021
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Jong Min Jang, Jong Hyeon Chae, Joon Sup Lee, Daewoong Suh, Hyun A Kim, Won Young Roh, Min Woo Kang
  • Patent number: 11121172
    Abstract: A light-emitting diode unit for a display including a plurality of pixels each including: first, second, and third light-emitting cells respectively including a first conductive semiconductor layer, an active layer, and a second conductive semiconductor layer; pads electrically connected to the first through third light-emitting cells to independently drive the first through third light-emitting cells; a first wavelength converter for converting a wavelength of light emitted from the first light-emitting cell; and a second wavelength converter for converting a wavelength of light emitted from the second light-emitting cell, in which the first wavelength converter converts a wavelength of light to a longer wavelength than the second wavelength converter, the second light-emitting cell has a greater area than the third light-emitting cell, and the first light-emitting cell has a greater area than the second light-emitting cell.
    Type: Grant
    Filed: November 8, 2017
    Date of Patent: September 14, 2021
    Assignee: Seoul Viosys Co., Ltd.
    Inventors: Chung Hoon Lee, Jong Hyeon Chae
  • Patent number: 11114499
    Abstract: A display device includes a plurality of pixel tiles spaced apart from each other, each of the pixel tiles including a substrate and a plurality of light emitting stacked structures disposed on the substrate, in which a distance between two adjacent light emitting stacked structures in the same pixel tile is substantially equal to a shortest distance between two adjacent light emitting stacked structures of different pixel tiles.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: September 7, 2021
    Inventors: Chung Hoon Lee, Jong Hyeon Chae
  • Patent number: 11063085
    Abstract: A display device includes a plurality of pixel tiles spaced apart from each other, each of the pixel tiles including a substrate and a plurality of light emitting stacked structures disposed on the substrate, in which a distance between two adjacent light emitting stacked structures in the same pixel tile is substantially equal to a shortest distance between two adjacent light emitting stacked structures of different pixel tiles.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: July 13, 2021
    Inventors: Chung Hoon Lee, Jong Hyeon Chae
  • Patent number: 11043476
    Abstract: A displaying apparatus including: a panel substrate; a plurality of light emitting devices arranged on the panel substrate; and at least one connection tip disposed on one surface of each of the light emitting devices. Each of the light emitting devices includes a light emitting structure including a first conductivity type semiconductor layer, a second conductivity type semiconductor layer, and an active layer interposed between the first and second conductivity type semiconductor layers; and first and second electrode pads disposed on the light emitting structure.
    Type: Grant
    Filed: June 17, 2020
    Date of Patent: June 22, 2021
    Assignee: Seoul Semiconductor Co., Ltd.
    Inventors: Motonobu Takeya, Seong Su Son, Jong Ik Lee, Jae Hee Lim, Jong Hyeon Chae, Seung Sik Hong
  • Publication number: 20210183941
    Abstract: A display device includes a plurality of pixel tiles spaced apart from each other, each of the pixel tiles including a substrate and a plurality of light emitting stacked structures disposed on the substrate, in which a distance between two adjacent light emitting stacked structures in the same pixel tile is substantially equal to a shortest distance between two adjacent light emitting stacked structures of different pixel tiles.
    Type: Application
    Filed: February 1, 2021
    Publication date: June 17, 2021
    Inventors: Chung Hoon LEE, Jong Hyeon CHAE
  • Publication number: 20210183828
    Abstract: A display panel including a circuit board having first pads, a plurality of light emitting devices disposed on the circuit board and having second pads, at least one of the light emitting devices including a repaired light emitting device, and a metal bonding layer bonding the first pads and the second pads, in which the metal bonding layer of the repaired light emitting device has at least one of a thickness and a composition different from that of the metal bonding layer of the remaining light emitting devices.
    Type: Application
    Filed: December 14, 2020
    Publication date: June 17, 2021
    Inventors: Jong Hyeon Chae, Ik Kyu You, Seom Geun Lee, Seong Kyu Jang, Yong Woo Ryu
  • Publication number: 20210175280
    Abstract: A light emitting device for a display including a first LED stack, a second LED stack disposed under the first LED stack, a third LED stack disposed under the second LED stack, and including a first conductivity type semiconductor layer and a second conductivity type semiconductor layer, a surface protection layer at least partially covering side surfaces of the first LED stack, the second LED stack, or the third LED stack, a first bonding layer interposed between the second LED stack and the third LED stack, a second bonding layer interposed between the first LED stack and the second LED stack, lower buried vias passing through the second LED stack and the first bonding layer, and electrically connected to the first conductivity type semiconductor layer and the second conductivity type semiconductor layer of the third LED stack, respectively, and upper buried vias passing through the first LED stack.
    Type: Application
    Filed: November 29, 2020
    Publication date: June 10, 2021
    Inventors: Jong Hyeon CHAE, Seom Geun LEE, Seong Kyu JANG
  • Patent number: 11024668
    Abstract: A display device includes a plurality of pixel tiles spaced apart from each other, each of the pixel tiles including a substrate and a plurality of light emitting stacked structures disposed on the substrate, in which a distance between two adjacent light emitting stacked structures in the same pixel tile is substantially equal to a shortest distance between two adjacent light emitting stacked structures of different pixel tiles.
    Type: Grant
    Filed: December 31, 2018
    Date of Patent: June 1, 2021
    Inventors: Chung Hoon Lee, Jong Hyeon Chae