Patents by Inventor Mihee Heo

Mihee Heo 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: 20240072213
    Abstract: A display device, according to the present invention, comprises a red semiconductor light-emitting element, a green semiconductor light-emitting element and a blue semiconductor light-emitting element, and comprises: a substrate on which the red, green and blue semiconductor light-emitting elements are arranged; and receiving holes which are formed on the substrate and in which the red, green and blue semiconductor light-emitting elements are assembled, wherein the red, green and blue semiconductor light-emitting elements each comprise a tip on a side surface thereof, such that at least any one among the angle formed by the tip and the thickness of one side with respect to the tip is formed so as to be different.
    Type: Application
    Filed: January 6, 2021
    Publication date: February 29, 2024
    Applicant: LG ELECTRONICS INC.
    Inventors: Mihee HEO, Hyeyoung YANG, Jisoo KO
  • Publication number: 20230402489
    Abstract: The light emitting device includes an active layer, a plurality of first conductivity-type semiconductor layers under the active layer, and a plurality of second conductivity-type semiconductor layers on the active layer. The plurality of first conductivity-type semiconductor layers include an adsorption prevention layer spaced farthest from the active layer. The adsorption prevention layer can include Alx1Ga(1-x1)InP, x1 can be 0.6 or less, and the thickness of the adsorption prevention layer can be 2 ?m or less.
    Type: Application
    Filed: November 25, 2020
    Publication date: December 14, 2023
    Applicant: LG ELECTRONICS INC.
    Inventors: Sunghyun HWANG, Mihee HEO, Kiseong JEON
  • Publication number: 20230395762
    Abstract: A light emitting device includes a first conductivity-type semiconductor layer, an active layer on the first conductivity-type semiconductor layer, a second conductivity-type semiconductor layer on the active layer, a first electrode on the first conductivity-type semiconductor layer, a second electrode on the second conductivity-type semiconductor layer, and a diffusion layer between the first electrode and the first conductivity-type semiconductor layer. The first electrode includes a plurality of layers, and at least one layer of the plurality of layers includes a magnetic material. The diffusion layer includes a magnetic material, and a thickness of the diffusion layer is 100 nm or less.
    Type: Application
    Filed: November 6, 2020
    Publication date: December 7, 2023
    Applicant: LG ELECTRONICS INC.
    Inventors: Sunghyun HWANG, Mihee HEO, Kiseong JEON
  • Patent number: 11715812
    Abstract: A display device includes a plurality of semiconductor light emitting diodes, first and second electrodes respectively extending from the plurality of semiconductor light emitting diodes to supply an electrical signal to the plurality of semiconductor light emitting diodes, a plurality of pair electrodes disposed on a substrate and having a first electrode and a second electrode, a dielectric layer disposed on the plurality of pair electrodes, and a chemical bond layer disposed between the dielectric layer and the plurality of semiconductor light emitting diodes and forming a covalent bond with the dielectric layer and each of the plurality of semiconductor light emitting diodes. The chemical bond layer bonds the semiconductor light emitting diodes to the dielectric layer when a voltage applied to the plurality of pair electrodes is cut off after the plurality of semiconductor light emitting diodes are assembled on the dielectric layer.
    Type: Grant
    Filed: June 3, 2022
    Date of Patent: August 1, 2023
    Assignee: LG ELECTRONICS INC.
    Inventors: Junghoon Kim, Hyunwoo Cho, Mihee Heo
  • Publication number: 20230107331
    Abstract: A display device, according to the present invention, comprises: semiconductor light-emitting devices; and a substrate on which the semiconductor light-emitting devices are received, and which comprises wiring electrodes electrically connected to the semiconductor light-emitting devices. The substrate comprises: a base part; assembly electrodes disposed on the base part so as to extend in one direction; a dielectric layer formed so as to cover the assembly electrodes; and a partition part formed on the dielectric layer and forming cells in which the semiconductor light-emitting devices are seated, wherein the partition part comprises a first partition part formed from metal material, and a second partition part formed from insulating material, and the first partition part and second partition part comprise a micropattern.
    Type: Application
    Filed: February 19, 2020
    Publication date: April 6, 2023
    Applicant: LG ELECTRONICS INC.
    Inventors: Mihee HEO, Junghoon KIM
  • Publication number: 20230005886
    Abstract: Discussed is a display device including a base part; a plurality of assembly electrodes disposed on the base part and having a first electrode and a second electrode that generate an electric field when power is applied; a dielectric layer disposed to cover the plurality of assembly electrodes; and a plurality of semiconductor light emitting devices disposed on a surface of the dielectric layer, wherein one surface of the plurality of semiconductor light emitting devices facing the dielectric layer and one surface of the dielectric layer facing the plurality of semiconductor light emitting devices respectively comprise a concave-convex structure.
    Type: Application
    Filed: February 10, 2020
    Publication date: January 5, 2023
    Applicant: LG ELECTRONICS INC.
    Inventors: Byungjun KANG, Junghoon KIM, Byoungkwon CHO, Mihee HEO
  • Publication number: 20220393074
    Abstract: A method of manufacturing a display device according to the present invention involves assembling a semiconductor light emitting element to an assembly substrate and then transferring the same to a wiring substrate, wherein, during self-assembly using magnetic and electric fields, the semiconductor light emitting element is fixed to the assembly substrate by forming a covalent bond between the semiconductor light emitting element and the assembly substrate so that the semiconductor light emitting element does not become separated from the assembly substrate, and when transferring the assembled object to the wiring substrate, the formed covalent bond is broken down so that the semiconductor light emitting element can be easily detached from the assembly substrate.
    Type: Application
    Filed: November 15, 2019
    Publication date: December 8, 2022
    Applicant: LG ELECTRONICS INC.
    Inventors: Mihee HEO, Junghoon KIM
  • Patent number: 11522091
    Abstract: Disclosed is a solar cell. The solar cell includes a semiconductor substrate, conductivity-type regions located in or on the semiconductor substrate, electrodes conductively connected to the conductivity-type regions, and insulating films located on at least one of opposite surfaces of the semiconductor substrate, and including a first film and a second film located on the first film, the second film has a higher carbon content than that of the first film, a refractive index of the second film is equal to or less than a refractive index of the first film, and an extinction coefficient of the second film is equal to or greater than an extinction coefficient of the first film.
    Type: Grant
    Filed: January 26, 2017
    Date of Patent: December 6, 2022
    Inventors: Juhong Yang, Indo Chung, Eunjoo Lee, Mihee Heo
  • Publication number: 20220302342
    Abstract: A display device includes a plurality of semiconductor light emitting diodes, first and second electrodes respectively extending from the plurality of semiconductor light emitting diodes to supply an electrical signal to the plurality of semiconductor light emitting diodes, a plurality of pair electrodes disposed on a substrate and having a first electrode and a second electrode, a dielectric layer disposed on the plurality of pair electrodes, and a chemical bond layer disposed between the dielectric layer and the plurality of semiconductor light emitting diodes and forming a covalent bond with the dielectric layer and each of the plurality of semiconductor light emitting diodes. The chemical bond layer bonds the semiconductor light emitting diodes to the dielectric layer when a voltage applied to the plurality of pair electrodes is cut off after the plurality of semiconductor light emitting diodes are assembled on the dielectric layer.
    Type: Application
    Filed: June 3, 2022
    Publication date: September 22, 2022
    Applicant: LG ELECTRONICS INC.
    Inventors: Junghoon KIM, Hyunwoo CHO, Mihee HEO
  • Patent number: 11374150
    Abstract: A display device can include a plurality of semiconductor light emitting diodes; first and second wiring electrodes respectively extending from the plurality of semiconductor light emitting diodes to supply an electrical signal to the plurality of semiconductor light emitting diodes; a plurality of pair electrodes disposed on a substrate and having a first electrode and a second electrode that generate an electric field when a current is supplied thereto; a dielectric layer disposed to cover the plurality of pair electrodes; and a covalent bond layer disposed between the dielectric layer and the plurality of semiconductor light emitting diodes, and forming a covalent bond with the dielectric layer and each of the plurality of semiconductor light emitting diodes, wherein the first wiring electrode and the second wiring electrode are located at opposite sides of the plurality of pair electrodes based on the plurality of semiconductor light emitting diodes.
    Type: Grant
    Filed: April 24, 2020
    Date of Patent: June 28, 2022
    Assignee: LG ELECTRONICS INC.
    Inventors: Junghoon Kim, Hyunwoo Cho, Mihee Heo
  • Patent number: 11004994
    Abstract: Disclosed is a solar cell including a semiconductor substrate, a conductive area including a first conductive area and a second conductive area formed on one surface of the semiconductor substrate, a passivation film formed on the conductive area, the passivation film having a contact hole, a protective film formed on the conductive area inside the contact hole, the protective film being formed on at least one of at least a portion of an inner side surface of the contact hole and the passivation film, and an electrode electrically connected to the conductive area through the contact hole with the protective film interposed therebetween.
    Type: Grant
    Filed: May 13, 2016
    Date of Patent: May 11, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Indo Chung, Juhong Yang, Eunjoo Lee, Mihee Heo
  • Patent number: 11004988
    Abstract: A solar cell includes a substrate of a first conductive type, a first doped region positioned at a first surface of the substrate and contains impurities of a second conductive type different from the first conductive type, and a first electrode part electrically connected to the first doped region. The first electrode part includes a thermosetting resin, and first and second conductive particles distributed in the thermosetting resin. The second conductive particles have a work function greater than the first conductive particles and form silicide at an interface contacting the first doped region.
    Type: Grant
    Filed: March 20, 2014
    Date of Patent: May 11, 2021
    Assignee: LG ELECTRONICS INC.
    Inventors: Jeongbeom Nam, Mihee Heo, Eunjoo Lee, Ilhyoung Jung
  • Publication number: 20200403118
    Abstract: A display device can include a plurality of semiconductor light emitting diodes; first and second wiring electrodes respectively extending from the plurality of semiconductor light emitting diodes to supply an electrical signal to the plurality of semiconductor light emitting diodes; a plurality of pair electrodes disposed on a substrate and having a first electrode and a second electrode that generate an electric field when a current is supplied thereto; a dielectric layer disposed to cover the plurality of pair electrodes; and a covalent bond layer disposed between the dielectric layer and the plurality of semiconductor light emitting diodes, and forming a covalent bond with the dielectric layer and each of the plurality of semiconductor light emitting diodes, wherein the first wiring electrode and the second wiring electrode are located at opposite sides of the plurality of pair electrodes based on the plurality of semiconductor light emitting diodes.
    Type: Application
    Filed: April 24, 2020
    Publication date: December 24, 2020
    Applicant: LG ELECTRONICS INC.
    Inventors: Junghoon KIM, Hyunwoo CHO, Mihee HEO
  • Patent number: 10868210
    Abstract: Disclosed is a solar cell including a semiconductor substrate, a protective-film layer on a surface of the semiconductor substrate, a polycrystalline semiconductor layer over the protective-film layer, a first conductive area formed by selectively doping the semiconductor layer with a first conductive dopant, a second conductive area doped with a second conductive dopant and located between neighboring portions of the first conductive area, an undoped barrier area located between the first conductive area and the second conductive area, a first electrode connected to the first conductive area, and a second electrode connected to the second conductive area. Each of the first conductive area and the second conductive area includes a second crystalline area having a crystalline structure different from that of the barrier area, and the second crystalline areas of the first and second conductive areas include a second polycrystalline area and a fourth crystalline area having different depths.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: December 15, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Indo Chung, Mihee Heo, Juhong Yang, Eunjoo Lee, Jeongbeom Nam
  • Patent number: 10777694
    Abstract: A solar cell can include a semiconductor substrate; a tunneling layer formed over the semiconductor substrate; a conductive area located over the tunneling layer, the conductive area including a first conductive area of a first conductive type and a second conductive area of a second conductive type; and an electrode including a first electrode connected to the first conductive area and a second electrode connected to the second conductive area, wherein a mark is located in at least one of the first conductive area and the second conductive area, and has a different shape from that of a crystal plane of the semiconductor substrate and the conductive area, and wherein the mark is formed along a longitudinally extending edge of at least one of the first conductive area and the second conductive area.
    Type: Grant
    Filed: July 3, 2019
    Date of Patent: September 15, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Indo Chung, Juhong Yang, Eunjoo Lee, Mihee Heo
  • Patent number: 10686087
    Abstract: Disclosed is a solar cell including a control passivation film on one surface of a semiconductor substrate, and being formed of a dielectric material; and a semiconductor layer on the control passivation film, wherein the semiconductor layer including a first conductive region having a first conductive type and a second conductive region having a second conductive type opposite to the first conductive type. The semiconductor substrate includes a diffusion region including at least one of a first diffusion region and a second diffusion region adjacent to the control passivation film, wherein the first diffusion region being locally formed to correspond to the first conductive region and having a doping concentration lower than a doping concentration of the first conductive region, wherein the second diffusion region being locally formed to correspond to the second conductive region and having a doping concentration lower than a doping concentration of the second conductive region.
    Type: Grant
    Filed: May 19, 2017
    Date of Patent: June 16, 2020
    Assignee: LG ELECTRONICS INC.
    Inventors: Chungyi Kim, Youngsung Yang, Jaewoo Choi, Mihee Heo
  • Publication number: 20190326457
    Abstract: A solar cell can include a semiconductor substrate; a tunneling layer formed over the semiconductor substrate; a conductive area located over the tunneling layer, the conductive area including a first conductive area of a first conductive type and a second conductive area of a second conductive type; and an electrode including a first electrode connected to the first conductive area and a second electrode connected to the second conductive area, wherein a mark is located in at least one of the first conductive area and the second conductive area, and has a different shape from that of a crystal plane of the semiconductor substrate and the conductive area, and wherein the mark is formed along a longitudinally extending edge of at least one of the first conductive area and the second conductive area.
    Type: Application
    Filed: July 3, 2019
    Publication date: October 24, 2019
    Applicant: LG ELECTRONICS INC.
    Inventors: Indo CHUNG, Juhong YANG, Eunjoo LEE, Mihee HEO
  • Patent number: 10388804
    Abstract: Disclosed is a method of manufacturing a solar cell, the method including forming a tunneling layer over one surface of a semiconductor substrate, forming a semiconductor layer over the tunneling layer, forming a conductive area including a first conductive area of a first conductive type and a second conductive area of a second conductive type in the semiconductor layer, and forming an electrode including a first electrode connected to the first conductive area and a second electrode connected to the second conductive area. The forming of the conductive area includes forming a mask layer over the semiconductor layer, forming a doping opening corresponding to at least one of the first conductive area and the second conductive area in the mask layer using a laser, and performing doping using the doping opening.
    Type: Grant
    Filed: May 27, 2016
    Date of Patent: August 20, 2019
    Assignee: LG ELECTRONICS INC.
    Inventors: Indo Chung, Juhong Yang, Eunjoo Lee, Mihee Heo
  • Publication number: 20180083149
    Abstract: Disclosed is a solar cell including a control passivation film on one surface of a semiconductor substrate, and being formed of a dielectric material; and a semiconductor layer on the control passivation film, wherein the semiconductor layer including a first conductive region having a first conductive type and a second conductive region having a second conductive type opposite to the first conductive type. The semiconductor substrate includes a diffusion region including at least one of a first diffusion region and a second diffusion region adjacent to the control passivation film, wherein the first diffusion region being locally formed to correspond to the first conductive region and having a doping concentration lower than a doping concentration of the first conductive region, wherein the second diffusion region being locally formed to correspond to the second conductive region and having a doping concentration lower than a doping concentration of the second conductive region.
    Type: Application
    Filed: May 19, 2017
    Publication date: March 22, 2018
    Applicant: LG ELECTRONICS INC.
    Inventors: Chungyi KIM, Youngsung YANG, Jaewoo CHOI, Mihee HEO
  • Publication number: 20170213921
    Abstract: Disclosed is a solar cell. The solar cell includes a semiconductor substrate, conductivity-type regions located in or on the semiconductor substrate, electrodes conductively connected to the conductivity-type regions, and insulating films located on at least one of opposite surfaces of the semiconductor substrate, and including a first film and a second film located on the first film, the second film has a higher carbon content than that of the first film, a refractive index of the second film is equal to or less than a refractive index of the first film, and an extinction coefficient of the second film is equal to or greater than an extinction coefficient of the first film.
    Type: Application
    Filed: January 26, 2017
    Publication date: July 27, 2017
    Applicant: LG ELECTRONICS INC.
    Inventors: Juhong YANG, Indo CHUNG, Eunjoo LEE, Mihee HEO