Patents by Inventor Chung Wan Kim

Chung Wan 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: 11963410
    Abstract: A display device includes a substrate including a pixel region and a peripheral region. A plurality of pixels is disposed in the pixel region of the substrate. Each of the plurality of pixels includes a light emitting element. Data lines and scan lines are connected to each of the plurality of pixels. A power line is configured to supply power to the plurality of pixels. The power line includes a plurality of first conductive lines and a plurality of second conductive lines intersecting the plurality of first conductive lines. The plurality of second conductive lines is arranged in a region between adjacent light emitting elements of the plurality of pixels. At least some of the plurality of second conductive lines extend in a direction oblique to a direction of extension of the data lines or the scan lines.
    Type: Grant
    Filed: June 13, 2022
    Date of Patent: April 16, 2024
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Yang Wan Kim, Byung Sun Kim, Jae Yong Lee, Chung Yi, Hyung Jun Park, Su Jin Lee
  • Patent number: 11462393
    Abstract: A plasma etching method using a Faraday cage, including: providing an etch substrate in a Faraday cage, where the etch substrate includes a metal mask provided on one surface thereof, and where an upper surface of the Faraday cage is provided with a mesh portion; a first patterning step of forming a first pattern area on the etch substrate; and a second patterning step of forming a second pattern area on the etch substrate after shielding at least a part of the mesh portion with a shutter. The first pattern area includes a first groove pattern having a depth gradient of 0 to 40 nm per 5 mm, and the second pattern area includes a second groove pattern having a depth gradient of 50 to 300 nm per 5 mm.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: October 4, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Eun Kyu Her, Song Ho Jang, Chung Wan Kim, Bu Gon Shin, Jeong Ho Park, Jung Hwan Yoon, So Young Choo
  • Patent number: 11348799
    Abstract: The present invention relates to a method of manufacturing a mold for a diffraction grating light guide plate by using two mask films, the mold having first to fourth pattern portions provided on one surface thereof, and to a method of manufacturing a diffraction grating light guide plate.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: May 31, 2022
    Assignee: LG CHEM, LTD
    Inventors: Eun Kyu Her, Song Ho Jang, Chung Wan Kim, Bu Gon Shin, Jeong Ho Park, Jung Hwan Yoon, So Young Choo
  • Patent number: 11331869
    Abstract: The present invention relates to a method of manufacturing a mold substrate for a diffraction lattice light guide plate, and a method of manufacturing a diffraction lattice light guide plate.
    Type: Grant
    Filed: August 16, 2018
    Date of Patent: May 17, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Eun Kyu Her, Chung Wan Kim, Song Ho Jang, Bu Gon Shin, Jeong Ho Park, Jung Hwan Yoon, So Young Choo
  • Patent number: 11276561
    Abstract: A plasma etching method using a Faraday cage, comprising: providing a Faraday cage having a mesh portion on an upper surface thereof in a plasma etching apparatus; providing a quartz substrate having a metal mask with an opening provided on one surface of the metal mask in the Faraday cage; and patterning the quartz substrate with plasma etching.
    Type: Grant
    Filed: October 19, 2018
    Date of Patent: March 15, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Eun Kyu Her, Chung Wan Kim, Song Ho Jang, Bu Gon Shin, Jeong Ho Park, Jung Hwan Yoon, So Young Choo
  • Patent number: 11276563
    Abstract: A plasma etching method using a Faraday cage which is capable of inhibiting the formation of a needle-like structure and forming a pattern portion having a depth gradient on an etching base.
    Type: Grant
    Filed: June 18, 2019
    Date of Patent: March 15, 2022
    Assignee: LG CHEM, LTD.
    Inventors: Soo Hee Kang, Song Ho Jang, Geun Sik Jo, Chung Wan Kim
  • Publication number: 20210027996
    Abstract: A plasma etching method using a Faraday cage which is capable of inhibiting the formation of a needle-like structure and forming a pattern portion having a depth gradient on an etching base.
    Type: Application
    Filed: June 18, 2019
    Publication date: January 28, 2021
    Inventors: Soo Hee KANG, Song Ho JANG, Geun Sik JO, Chung Wan KIM
  • Patent number: 10877348
    Abstract: The present application relates to an electrochromic device and a method for manufacturing the electrochromic device. The present application can provide an electrochromic device having increased productivity and improved electrochromic rate and durability, and a method for manufacturing the electrochromic device. The electrochromic device may be advantageously used in various devices such as smart windows, smart mirrors, displays, electronic papers and adaptive camouflage.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: December 29, 2020
    Assignee: LG CHEM, LTD.
    Inventors: Soo Hee Kang, Song Ho Jang, Chung Wan Kim
  • Publication number: 20200368981
    Abstract: The present invention relates to a method of manufacturing a mold substrate for a diffraction lattice light guide plate, and a method of manufacturing a diffraction lattice light guide plate.
    Type: Application
    Filed: August 16, 2018
    Publication date: November 26, 2020
    Inventors: Eun Kyu HER, Chung Wan KIM, Song Ho JANG, Bu Gon SHIN, Jeong Ho PARK, Jung Hwan YOON, So Young CHOO
  • Publication number: 20200365379
    Abstract: A plasma etching method using a Faraday cage, including: providing an etch substrate in a Faraday cage, where the etch substrate includes a metal mask provided on one surface thereof, and where an upper surface of the Faraday cage is provided with a mesh portion; a first patterning step of forming a first pattern area on the etch substrate; and a second patterning step of forming a second pattern area on the eth substrate after shielding at least a part of the mesh portion with a shutter. The first pattern area includes a first groove pattern having a depth gradient of 0 to 40 nm per 5 mm, and the second pattern area includes a second groove pattern having a depth gradient of 50 to 300 nm per 5 mm.
    Type: Application
    Filed: December 14, 2018
    Publication date: November 19, 2020
    Inventors: Eun Kyu Her, Song Ho Jang, Chung Wan Kim, Bu Gon Shin, Jeong Ho Park, Jung Hwan Yoon, So Young Choo
  • Publication number: 20200335347
    Abstract: The present invention relates to a method of manufacturing a mold for a diffraction grating light guide plate by using two mask films, the mold having first to fourth pattern portions provided on one surface thereof, and to a method of manufacturing a diffraction grating light guide plate.
    Type: Application
    Filed: June 18, 2019
    Publication date: October 22, 2020
    Inventors: Eun Kyu HER, Song Ho JANG, Chung Wan KIM, Bu Gon SHIN, Jeong Ho PARK, Jung Hwan YOON, So Young CHOO
  • Publication number: 20200203131
    Abstract: A plasma etching method using a Faraday cage, comprising: providing a Faraday cage having a mesh portion on an upper surface thereof in a plasma etching apparatus; providing a quartz substrate having a metal mask with an opening provided on one surface of the metal mask in the Faraday cage; and patterning the quartz substrate with plasma etching.
    Type: Application
    Filed: October 19, 2018
    Publication date: June 25, 2020
    Inventors: Eun Kyu HER, Chung Wan KIM, Song Ho JANG, Bu Gon SHIN, Jeong Ho PARK, Jung Hwan YOON, So Young CHOO
  • Patent number: 10495938
    Abstract: The present application relates to an electrochromic element and a method for manufacturing the same. A method for manufacturing an electrochromic element according to an exemplary embodiment of the present application comprises: forming a first electrode on a first substrate, and then forming a first electrochromic unit on the first electrode; forming a second electrode on a second substrate, and then forming a second electrochromic unit on the second electrode; and forming an electrolyte layer between the first electrochromic unit and the second electrochromic unit, in which the forming of the first electrochromic unit is carried out by an E-beam deposition method (E-beam evaporation) using a carrier gas.
    Type: Grant
    Filed: October 11, 2016
    Date of Patent: December 3, 2019
    Assignee: LG CHEM, LTD.
    Inventors: Soohee Kang, Chung Wan Kim, Song Ho Jang, Jae Hoon Lee, Kyoung Jin Kim, Jin Woo Park, Geunsik Jo
  • Publication number: 20180373108
    Abstract: The present application relates to an electrochromic device and a method for manufacturing the electrochromic device. The present application can provide an electrochromic device having increased productivity and improved electrochromic rate and durability, and a method for manufacturing the electrochromic device. The electrochromic device may be advantageously used in various devices such as smart windows, smart mirrors, displays, electronic papers and adaptive camouflage.
    Type: Application
    Filed: March 8, 2017
    Publication date: December 27, 2018
    Applicant: LG CHEM, LTD.
    Inventors: Soo Hee KANG, Song Ho JANG, Chung Wan KIM
  • Publication number: 20180292724
    Abstract: The present application relates to an electrochromic element and a method for manufacturing the same. A method for manufacturing an electrochromic element according to an exemplary embodiment of the present application comprises: forming a first electrode on a first substrate, and then forming a first electrochromic unit on the first electrode; forming a second electrode on a second substrate, and then forming a second electrochromic unit on the second electrode; and forming an electrolyte layer between the first electrochromic unit and the second electrochromic unit, in which the forming of the first electrochromic unit is carried out by an E-beam deposition method (E-beam evaporation) using a carrier gas.
    Type: Application
    Filed: October 11, 2016
    Publication date: October 11, 2018
    Applicant: LG CHEM, LTD.
    Inventors: Soohee KANG, Chung Wan KIM, Song Ho JANG, Jae Hoon LEE, Kyoung Jin KIM, Jin Woo PARK, Geunsik JO
  • Patent number: 10057979
    Abstract: An exemplary embodiment of the present invention relates to a conductive structure body that comprises a darkening pattern layer having AlOxNy, and a method for manufacturing the same. The conductive structure body according to the exemplary embodiment of the present invention may prevent reflection by a conductive pattern layer without affecting conductivity of the conductive pattern layer, and improve a concealing property of the conductive pattern layer by improving absorbance. Accordingly, a display panel having improved visibility may be developed by using the conductive structure body according to the exemplary embodiment of the present invention.
    Type: Grant
    Filed: June 11, 2014
    Date of Patent: August 21, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Beom Mo Koo, Ji Young Hwang, Song Ho Jang, Jin Woo Park, Chung Wan Kim, Seung Heon Lee
  • Patent number: 10051727
    Abstract: An exemplary embodiment of the present invention relates to a conductive structure body that comprises a darkening pattern layer having AlOxNy, and a method for manufacturing the same. The conductive structure body according to the exemplary embodiment of the present invention may prevent reflection by a conductive pattern layer without affecting conductivity of the conductive pattern layer, and improve a concealing property of the conductive pattern layer by improving absorbance. Accordingly, a display panel having improved visibility may be developed by using the conductive structure body according to the exemplary embodiment of the present invention.
    Type: Grant
    Filed: April 14, 2016
    Date of Patent: August 14, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Jin Hyong Lim, Song Ho Jang, Jin Woo Park, Ki-Hwan Kim, In-Seok Hwang, Chung Wan Kim, Seung Heon Lee, Beom Mo Koo, Ji Young Hwang
  • Publication number: 20170238413
    Abstract: An exemplary embodiment of the present invention relates to a conductive structure body that comprises a darkening pattern layer having AlOxNy, and a method for manufacturing the same. The conductive structure body according to the exemplary embodiment of the present invention may prevent reflection by a conductive pattern layer without affecting conductivity of the conductive pattern layer, and improve a concealing property of the conductive pattern layer by improving absorbance. Accordingly, a display panel having improved visibility may be developed by using the conductive structure body according to the exemplary embodiment of the present invention.
    Type: Application
    Filed: April 14, 2016
    Publication date: August 17, 2017
    Inventors: Jin Hyong LIM, Song Ho JANG, Jin Woo PARK, Ki-Hwan KIM, In-Seok HWANG, Chung Wan KIM, Seung Heon LEE, Beom Mo KOO, Ji Young HWANG
  • Patent number: 9357636
    Abstract: An exemplary embodiment of the present invention relates to a conductive structure body that comprises a darkening pattern layer having AlOxNy, and a method for manufacturing the same. The conductive structure body according to the exemplary embodiment of the present invention may prevent reflection by a conductive pattern layer without affecting conductivity of the conductive pattern layer, and improve a concealing property of the conductive pattern layer by improving absorbance. Accordingly, a display panel having improved visibility may be developed by using the conductive structure body according to the exemplary embodiment of the present invention.
    Type: Grant
    Filed: March 2, 2012
    Date of Patent: May 31, 2016
    Assignee: LG CHEM, LTD.
    Inventors: Jin Hyong Lim, Song Ho Jang, Jin Woo Park, Ki-Hwan Kim, In-Seok Hwang, Chung Wan Kim, Seung Heon Lee, Beom Mo Koo, Ji Young Hwang
  • Patent number: 9204535
    Abstract: Provided is a conductive structure body comprising: a substrate; a conductive pattern; and a darkened pattern comprising CuOx (0<x?1), and a method for manufacturing the same. The conductive structure body may prevent reflection due to a conductive pattern without affecting the conductivity of the conductive pattern, and may improve the concealment of the conductive pattern by improving the absorbance of the conductive structure body. Therefore, a display panel with improved visibility may be developed using the conductive structure body.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: December 1, 2015
    Assignee: LG CHEM, LTD.
    Inventors: Jin Hyong Lim, Sujin Kim, Song Ho Jang, Ki-Hwan Kim, Chung Wan Kim