Patents by Inventor Joon-soo Bae

Joon-soo Bae 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: 6900584
    Abstract: A mask-frame assembly for a color cathode-ray tube comprising a first and second support members spaced out a predetermined distance; first and second resilient support members installed between the first and second support members supporting the first and second support members, each at the first and second resilient support members comprising supports fixed to the first and second support members and a connecting portion connecting the supports; a mask installed at the first and second support members such that tension is applied thereto, the mask comprising a plurality of electron beam through holes; and a compensating unit connected between the first and second support members or the supports of the resilient support members between each connecting portion and the mask, the compensating unit being formed of a material having a lower thermal expansion coefficient than the first and second resilient support members.
    Type: Grant
    Filed: August 27, 2001
    Date of Patent: May 31, 2005
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Kuen-dong Ha, Arimoto Nozomu, Joon-soo Bae, Joon Lee, Deok-hyeon Choe, Gui-bae Kim, Dong-hwan Kim
  • Patent number: 6774551
    Abstract: A tension mask frame assembly for a color CRT includes a tension mask having an effective area having a plurality of electron beam passing holes and an ineffective area disposed at an edge portion of the effective area, a frame including support members which support opposite side portions of the tension mask so that tension is applied to the tension mask and rigid members which support end portions of the support members to maintain a gap between support members, and at least one weight member installed by a fixing unit to be separated at a predetermined interval in the ineffective area of the tension mask in a lengthwise direction of the tension mask fixed at the frame.
    Type: Grant
    Filed: January 14, 2003
    Date of Patent: August 10, 2004
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Joon-soo Bae, Kuen-dong Ha, Gui-bae Kim, Woo-il Park
  • Publication number: 20040012322
    Abstract: A tension mask frame assembly of a color CRT includes a tension mask in which a plurality of electron beam passing holes are formed and a frame. The frame includes a pair of first and second support members separated a predetermined distance from each other and supporting the tension mask so that a tensile force is applied to the tension mask. First and second elastic members are installed between both end portions of each of the first and second support members, supporting the first and second support members to be separated a predetermined distance from each other to compensate for an amount of thermal expansion of the tension mask, and having inclined portions inclined at a predetermined angle.
    Type: Application
    Filed: June 12, 2003
    Publication date: January 22, 2004
    Inventors: Kuen-Dong Ha, Joon-Soo Bae, Gi-Young Song
  • Publication number: 20030151345
    Abstract: A tension mask frame assembly for a color CRT includes a tension mask having an effective area having a plurality of electron beam passing holes and an ineffective area disposed at an edge portion of the effective area, a frame including support members which support opposite side portions of the tension mask so that tension is applied to the tension mask and rigid members which support end portions of the support members to maintain a gap between support members, and at least one weight member installed by a fixing unit to be separated at a predetermined interval in the ineffective area of the tension mask in a lengthwise direction of the tension mask fixed at the frame.
    Type: Application
    Filed: January 14, 2003
    Publication date: August 14, 2003
    Applicant: Samsung SDI Co., Ltd.
    Inventors: Joon-soo Bae, Kuen-dong Ha, Gui-bae Kim, Woo-il Park
  • Publication number: 20030117057
    Abstract: A color CRT includes a panel having a fluorescent film formed on an inner surface, a tension mask frame assembly installed in the panel and including a frame including a pair of first and second support members separated a predetermined distance from each other, and first and second elastic members installed between the first and second support members to support the first and second support members and having support portions fixed at the first and second support members and a connection portion to connect the support portions, a mask having electron beam passing holes formed therein and installed such that a tension is applied to the first and second support members, and a correction unit installed at the first and second support members or support portions between the connection portion and the mask, to correct a mis-landing of an electron beam due to thermal expansion of the mask and the frame.
    Type: Application
    Filed: October 11, 2002
    Publication date: June 26, 2003
    Applicant: SAMSUNG SDI co., Ltd.
    Inventors: Jun-Kyo In, Dong-Hwan Kim, Kuen-Dong Ha, Joon-Soo Bae, Du-Seob Aum, Nozomu Arimoto
  • Publication number: 20020135286
    Abstract: A mask-frame assembly for a color cathode-ray tube comprising a first and second support members spaced out a predetermined distance; first and second resilient support members installed between the first and second support members supporting the first and second support members, each at the first and second resilient support members comprising supports fixed to the first and second support members and a connecting portion connecting the supports; a mask installed at the first and second support members such that tension is applied thereto, the mask comprising a plurality of electron beam through holes; and a compensating unit connected between the first and second support members or the supports of the resilient support members between each connecting portion and the mask, the compensating unit being formed of a material having a lower thermal expansion coefficient than the first and second resilient support members.
    Type: Application
    Filed: August 27, 2001
    Publication date: September 26, 2002
    Inventors: Kuen-dong Ha, Arimoto Nozomu, Joon-soo Bae, Joon Lee, Deok-hyeon Choe, Gui-bae Kim, Dong-hwan Kim