Patents by Inventor Deuk-seok Chung

Deuk-seok Chung 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: 6616497
    Abstract: A method of manufacturing a carbon nanotube field emitter for field emission displays by electrophoresis is disclosed. The method of manufacturing involves: first, loading an electrode plate and the field emitter substrate, which are spaced apart from one another, into an electrophoresis bath containing a carbon nanotube suspension for the electrophoresis; second, applying a predetermined bias voltage from a power supply between the electrode plate and the cathodes of the field emitter substrate to deposit, at room temperature, carbon nanotube particles on the surface of the electrodes exposed through the holes of the dielectric film; and third, drawing the field emitter substrate, on which the carbon nanotube particles have been deposited, out of the electrophoresis bath, and heating the field emitter substrate with carbon nanotube tips at a predetermined temperature. An efficient low-temperature process, incorporating low cost carbon nanotube particles, provides for a lower manufacturing cost.
    Type: Grant
    Filed: June 26, 2000
    Date of Patent: September 9, 2003
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Won-bong Choi, Hoon-young Kim, Deuk-seok Chung, Jung-ho Kang
  • Publication number: 20030027478
    Abstract: A method of fabricating a field emission display employing carbon nanotubes (CNTs) as electron emitters is provided. The method includes forming a cathode on a substrate; forming a gate insulation layer having a plurality of gate holes on the cathode; forming a gate electrode having a plurality of via-holes corresponding to the gate holes, respectively, on the gate insulation layer; forming a plurality of conductive columns higher than the gate electrode on the cathode within the respective gate holes; adhering the CNTs to the bottom of a plate template which is separately provided; bringing the bottom of the template having the CNTs to contact the tops of the conductive columns to adhere the CNTs to the tops of the conductive columns; and firing the conductive columns to lower the levels thereof.
    Type: Application
    Filed: August 2, 2002
    Publication date: February 6, 2003
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Shang-Hyeun Park, Deuk-Seok Chung, Hang-Woo Lee
  • Publication number: 20020094494
    Abstract: A method of manufacturing a field emitter array using carbon nanotubes, low voltage field emission material, is provided. The method includes the steps of (a) forming a conductive thin film layer on the top of a transparent substrate having a transparent electrode and exposing a predetermined portion of the transparent electrode; (b) forming an opaque thin film layer on the exposed predetermined portion of the transparent electrode; (c) depositing an insulation material on the entire top surface of the transparent substrate and removing the insulation material from the top surfaces of the conductive thin film layer and the opaque thin film layer, thereby forming an insulation layer; (d) forming a gate layer on the top of the insulation layer; and (e) removing the opaque thin film layer and forming carbon nanotube tips on the top of the exposed transparent electrode.
    Type: Application
    Filed: January 4, 2002
    Publication date: July 18, 2002
    Applicant: Samsung SDI Co,. Ltd.
    Inventors: Deuk-seok Chung, Jong-min Kim, Shang-hyeun Park, Nae-sung Lee, Hang-woo Lee