Patents by Inventor Cheol-Lae Roh

Cheol-Lae Roh 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: 20230085216
    Abstract: A sputtering apparatus includes: a first cylindrical target and a second cylindrical target, which are arranged in a first direction and parallel to each other; a first magnet disposed in the first cylindrical target; a second magnet disposed in the second cylindrical target; and a substrate holder spaced apart from the first and second cylindrical targets in a second direction which is perpendicular to the first direction, wherein each of a first angle formed by a first imaginary straight line from a center of the first magnet to a cylindrical axis of the first cylindrical target with a first perpendicular line and a second angle formed by a second imaginary straight line from a center to of the second magnet to a cylindrical axis of the second cylindrical target with a second perpendicular line is in a range of about 30 degrees to about 180 degrees.
    Type: Application
    Filed: March 7, 2022
    Publication date: March 16, 2023
    Inventors: You Jong LEE, Nam Wook KANG, Cheol Lae ROH, Doo Seon YU, Jeong Il LEE, Myung Soo HUH
  • Publication number: 20230055700
    Abstract: Provided are an inkjet printing apparatus and a method for inspecting an inkjet head using same. The inkjet printing apparatus comprises: an inspection stage unit on which an inspection substrate is seated; an inkjet head unit including at least one inkjet head that ejects ink containing dipoles and a solvent in which the dipoles disperse, on the inspection stage unit; and a particle count inspection unit that is located so as to be spaced apart from the inkjet head unit in one direction. The particle count inspection unit comprises: a first heat treatment unit that is located on the top portion of the inspection stage unit; and a first sensing unit that is located on the bottom portion of the inspection stage unit and measures the number of dipoles sprayed onto the inspection substrate.
    Type: Application
    Filed: June 2, 2020
    Publication date: February 23, 2023
    Inventors: Byung Chul LEE, Heung Cheol JEONG, Myung Soo HUH, Cheol Lae ROH, Do Hun LEE
  • Publication number: 20220246708
    Abstract: A method of manufacturing a metal oxide film includes injecting a reaction gas and metal precursors into a chamber, forming a first metal precursor film on a substrate in a plasma OFF state, forming a first sub-metal oxide film by oxidizing the first metal precursor film in a plasma ON state, and forming a second metal precursor film on the first sub-metal oxide film in the plasma OFF state, where the metal oxide film has an amorphous phase, a thickness of about 20 nanometer (nm) to about 130 nm, and a dielectric constant of about 10 to about 50.
    Type: Application
    Filed: April 20, 2022
    Publication date: August 4, 2022
    Inventors: Myung Soo HUH, Dong Kyun KO, Sung Chul KIM, Woo Jin KIM, Cheol Lae ROH, Keun Hee PARK
  • Patent number: 11362162
    Abstract: A method of manufacturing a metal oxide film includes injecting a reaction gas and metal precursors into a chamber, forming a first metal precursor film on a substrate in a plasma OFF state, forming a first sub-metal oxide film by oxidizing the first metal precursor film in a plasma ON state, and forming a second metal precursor film on the first sub-metal oxide film in the plasma OFF state, where the metal oxide film has an amorphous phase, a thickness of about 20 nanometer (nm) to about 130 nm, and a dielectric constant of about 10 to about 50.
    Type: Grant
    Filed: September 14, 2018
    Date of Patent: June 14, 2022
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Myung Soo Huh, Dong Kyun Ko, Sung Chui Kim, Woo Jin Kim, Cheol Lae Roh, Keun Hee Park
  • Patent number: 10907245
    Abstract: A linear evaporation source and a deposition apparatus having the same are disclosed. In one aspect, the linear evaporation source includes i) a crucible being open on one side thereof and configured to store a deposition material and ii) a plurality of partitions dividing an internal space of the crucible, wherein each of the partitions has at least one opening in a lower portion thereof. The source further includes i) a nozzle section located on the open side of the crucible and comprising a plurality of nozzles, ii) a heater configured to heat the crucible and iii) a housing configured to accommodate the crucible, the nozzle section, and the heater.
    Type: Grant
    Filed: June 28, 2019
    Date of Patent: February 2, 2021
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Gyu Seo, Sang-Jin Han, Cheol-Lae Roh, Jae-Hong Ahn
  • Publication number: 20190323119
    Abstract: A linear evaporation source and a deposition apparatus having the same are disclosed. In one aspect, the linear evaporation source includes i) a crucible being open on one side thereof and configured to store a deposition material and ii) a plurality of partitions dividing an internal space of the crucible, wherein each of the partitions has at least one opening in a lower portion thereof. The source further includes i) a nozzle section located on the open side of the crucible and comprising a plurality of nozzles, ii) a heater configured to heat the crucible and iii) a housing configured to accommodate the crucible, the nozzle section, and the heater.
    Type: Application
    Filed: June 28, 2019
    Publication date: October 24, 2019
    Inventors: Min-Gyu SEO, Sang-Jin HAN, Cheol-Lae ROH, Jae-Hong AHN
  • Patent number: 10364488
    Abstract: A linear evaporation source and a deposition apparatus having the same are disclosed. In one aspect, the linear evaporation source includes i) a crucible being open on one side thereof and configured to store a deposition material and ii) a plurality of partitions dividing an internal space of the crucible, wherein each of the partitions has at least one opening in a lower portion thereof. The source further includes i) a nozzle section located on the open side of the crucible and comprising a plurality of nozzles, ii) a heater configured to heat the crucible and iii) a housing configured to accommodate the crucible, the nozzle section, and the heater.
    Type: Grant
    Filed: January 30, 2018
    Date of Patent: July 30, 2019
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Gyu Seo, Sang-Jin Han, Cheol-Lae Roh, Jae-Hong Ahn
  • Publication number: 20190115409
    Abstract: A method of manufacturing a metal oxide film includes injecting a reaction gas and metal precursors into a chamber, forming a first metal precursor film on a substrate in a plasma OFF state, forming a first sub-metal oxide film by oxidizing the first metal precursor film in a plasma ON state, and forming a second metal precursor film on the first sub-metal oxide film in the plasma OFF state, where the metal oxide film has an amorphous phase, a thickness of about 20 nanometer (nm) to about 130 nm, and a dielectric constant of about 10 to about 50.
    Type: Application
    Filed: September 14, 2018
    Publication date: April 18, 2019
    Inventors: Myung Soo HUH, Dong Kyun KO, Sung Chul KIM, Woo Jin KIM, Cheol Lae ROH, Keun Hee PARK
  • Patent number: 10081867
    Abstract: A linear evaporation source and a deposition apparatus having the same are disclosed. In one embodiment, the linear evaporation source includes i) a crucible being open on one side thereof and configured to store a deposition material and ii) a plurality of partitions dividing an internal space of the crucible, wherein each of the partitions has at least one opening in a lower portion thereof. The source further includes i) a nozzle section located on the open side of the crucible and comprising a plurality of nozzles, ii) a heater configured to heat the crucible and iii) a housing configured to accommodate the crucible, the nozzle section, and the heater.
    Type: Grant
    Filed: September 12, 2014
    Date of Patent: September 25, 2018
    Assignee: Samsung Display Co., Ltd.
    Inventors: Min-Gyu Seo, Sang-Jin Han, Cheol-Lae Roh, Jae-Hong Ahn
  • Publication number: 20180155831
    Abstract: A linear evaporation source and a deposition apparatus having the same are disclosed. In one aspect, the linear evaporation source includes i) a crucible being open on one side thereof and configured to store a deposition material and ii) a plurality of partitions dividing an internal space of the crucible, wherein each of the partitions has at least one opening in a lower portion thereof. The source further includes i) a nozzle section located on the open side of the crucible and comprising a plurality of nozzles, ii) a heater configured to heat the crucible and iii) a housing configured to accommodate the crucible, the nozzle section, and the heater.
    Type: Application
    Filed: January 30, 2018
    Publication date: June 7, 2018
    Inventors: Min-Gyu SEO, Sang-Jin HAN, Cheol-Lae ROH, Jae-Hong AHN
  • Patent number: 9688094
    Abstract: A method for cutting a substrate includes: radiating, as part of a first laser radiating process, a laser towards a surface of the substrate to form a first groove in a substrate. Radiating the laser towards the surface includes radiating, in sequence, the laser towards a first outer point (FOP), a second outer point (SOP), a first intermediate point (FIP), a second intermediate point (SIP), and a first cut point (FCP) of the surface, each of the points being spaced apart from one another by one or more distances. The FCP corresponds to a cut line of the substrate. The FOP and the SOP are respectively disposed at lateral sides of the FCP. The FIP is disposed between the FCP and the FOP. The SIP is disposed between the FCP and the SOP. The same kind and intensity of laser is radiated towards each of the points.
    Type: Grant
    Filed: January 4, 2016
    Date of Patent: June 27, 2017
    Assignees: Samsung Display Co., Ltd., Philoptics Co., Ltd.
    Inventors: Il Young Jeong, Tae Yong Kim, Cheol Lae Roh, Je Kil Ryu, Jeong Hun Woo, Gyoo Wan Han, Ki Su Han, Tae Hyoung Cho, Jong Nam Moon
  • Patent number: 9450199
    Abstract: A method of forming nanocrystals and a method of manufacturing an organic light-emitting display apparatus that includes a metal compound thin film having the nanocrystals. The method of forming nanocrystals includes forming a metal compound thin film under a first pressure by using a reactive sputtering process, and forming the nanocrystals in the metal compound thin film under a second pressure that is lower than the first pressure by using the reactive sputtering process.
    Type: Grant
    Filed: August 9, 2013
    Date of Patent: September 20, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Myung-Soo Huh, Cheol-Lae Roh, Seung-Ho Choi
  • Patent number: 9450206
    Abstract: An organic light-emitting apparatus including: a substrate; an organic light-emitting device disposed on the substrate and including a first electrode, a second electrode, and an intermediate layer disposed between the first electrode and the second electrode; and an encapsulation layer provided to cover the organic light-emitting device. The encapsulation layer includes a first inorganic layer including a first fracture point, and a first fracture control layer provided on the first inorganic layer to seal the first fracture point.
    Type: Grant
    Filed: February 17, 2016
    Date of Patent: September 20, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Myung-Soo Huh, Jae-Hyun Kim, Jin-Kwang Kim, Cheol-Lae Roh, Suk-Won Jung, Cheol-Min Jang
  • Publication number: 20160164034
    Abstract: An organic light-emitting apparatus including: a substrate; an organic light-emitting device disposed on the substrate and including a first electrode, a second electrode, and an intermediate layer disposed between the first electrode and the second electrode; and an encapsulation layer provided to cover the organic light-emitting device. The encapsulation layer includes a first inorganic layer including a first fracture point, and a first fracture control layer provided on the first inorganic layer to seal the first fracture point.
    Type: Application
    Filed: February 17, 2016
    Publication date: June 9, 2016
    Inventors: Myung-Soo HUH, Jae-Hyun KIM, Jin-Kwang KIM, Cheol-Lae ROH, Suk-Won JUNG, Cheol-Min JANG
  • Publication number: 20160114617
    Abstract: A method for cutting a substrate includes: radiating, as part of a first laser radiating process, a laser towards a surface of the substrate to form a first groove in a substrate. Radiating the laser towards the surface includes radiating, in sequence, the laser towards a first outer point (FOP), a second outer point (SOP), a first intermediate point (FIP), a second intermediate point (SIP), and a first cut point (FCP) of the surface, each of the points being spaced apart from one another by one or more distances. The FCP corresponds to a cut line of the substrate. The FOP and the SOP are respectively disposed at lateral sides of the FCP. The FIP is disposed between the FCP and the FOP. The SIP is disposed between the FCP and the SOP. The same kind and intensity of laser is radiated towards each of the points.
    Type: Application
    Filed: January 4, 2016
    Publication date: April 28, 2016
    Inventors: Il Young JEONG, Tae Yong KIM, Cheol Lae ROH, Je Kil RYU, Jeong Hun WOO, Gyoo Wan HAN, Ki Su HAN, Tae Hyoung CHO, Jong Nam MOON
  • Patent number: 9299954
    Abstract: An organic light-emitting apparatus including: a substrate; an organic light-emitting device disposed on the substrate and including a first electrode, a second electrode, and an intermediate layer disposed between the first electrode and the second electrode; and an encapsulation layer provided to cover the organic light-emitting device. The encapsulation layer includes a first inorganic layer including a first fracture point, and a first fracture control layer provided on the first inorganic layer to seal the first fracture point.
    Type: Grant
    Filed: July 15, 2014
    Date of Patent: March 29, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Myung-Soo Huh, Jae-Hyun Kim, Jin-Kwang Kim, Cheol-Lae Roh, Suk-Won Jung, Cheol-Min Jang
  • Patent number: 9299613
    Abstract: A method for cutting a substrate includes: radiating, as part of a first laser radiating process, a laser towards a surface of the substrate to form a first groove in a substrate. Radiating the laser towards the surface includes radiating, in sequence, the laser towards a first outer point (FOP), a second outer point (SOP), a first intermediate point (FIP), a second intermediate point (SIP), and a first cut point (FCP) of the surface, each of the points being spaced apart from one another by one or more distances. The FCP corresponds to a cut line of the substrate. The FOP and the SOP are respectively disposed at lateral sides of the FCP. The FIP is disposed between the FCP and the FOP. The SIP is disposed between the FCP and the SOP. The same kind and intensity of laser is radiated towards each of the points.
    Type: Grant
    Filed: July 7, 2014
    Date of Patent: March 29, 2016
    Assignees: Samsung Display Co., Ltd., Philoptics Co., Ltd.
    Inventors: Il Young Jeong, Tae Yong Kim, Cheol Lae Roh, Je Kil Ryu, Jeong Hun Woo, Gyoo Wan Han, Ki Su Han, Tae Hyoung Cho, Jong Nam Moon
  • Patent number: 9259805
    Abstract: Provided is a mask for an evaporation apparatus, which includes a first division mask and a second division mask. The first and second division masks are directly bonded to each other by welding, thereby forming welding portion between the first and the second division masks. A method and apparatus for manufacturing a mask for evaporation are also provided. The division masks according to the embodiment do not use subframes, and are directly bonded to one another by welding, so that a shadow effect does not occur. The apparatus for manufacturing a mask for evaporation includes a work stage, a clamp fixing a first division mask and a second division mask to the work stage, and a laser welding part welding the first division mask to the second division mask. The apparatus may further include a first roller leading the laser welding part and a second roller following the laser welding part.
    Type: Grant
    Filed: December 9, 2010
    Date of Patent: February 16, 2016
    Assignee: Samsung Display Co., Ltd.
    Inventors: Joon-Hyung Kim, Young-Geun Cho, Eui-Shin Shin, Jong-Heon Kim, Seung-Ho Choi, Cheol-Lae Roh, Chang-Mog Jo, Jae-Seok Park
  • Patent number: 9174307
    Abstract: A substrate cutting apparatus includes a stage configured to support a substrate, a first laser generator configured to emit a first laser beam toward the substrate, the first laser beam being a short-pulse laser beam, and a beam swing unit disposed on a beam path of the first laser beam, the beam swing unit being configured to swing the first laser beam in a predetermined light irradiating section on the substrate, the light irradiating section on the substrate including at least one of a curved line section and a straight line section.
    Type: Grant
    Filed: July 7, 2010
    Date of Patent: November 3, 2015
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Hyun-Chul Lee, Won-Kyu Lim, Joon-Hyung Kim, Jae-Seok Park, Cheol-Lae Roh
  • Publication number: 20150108089
    Abstract: A method for cutting a substrate includes: radiating, as part of a first laser radiating process, a laser towards a surface of the substrate to form a first groove in a substrate. Radiating the laser towards the surface includes radiating, in sequence, the laser towards a first outer point (FOP), a second outer point (SOP), a first intermediate point (FIP), a second intermediate point (SIP), and a first cut point (FCP) of the surface, each of the points being spaced apart from one another by one or more distances. The FCP corresponds to a cut line of the substrate. The FOP and the SOP are respectively disposed at lateral sides of the FCP. The FIP is disposed between the FCP and the FOP. The SIP is disposed between the FCP and the SOP. The same kind and intensity of laser is radiated towards each of the points.
    Type: Application
    Filed: July 7, 2014
    Publication date: April 23, 2015
    Inventors: Il Young JEONG, Tae Yong KIM, Cheol Lae ROH, Je Kil RYU, Jeong Hun WOO, Gyoo Wan HAN, Ki Su HAN, Tae Hyoung CHO, Jong Nam MOON