Patents by Inventor Kyung-Jin Zheong

Kyung-Jin Zheong 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).

  • Cathode ray tube
    Patent number: 6781298
    Abstract: A Cathode Ray Tube (hereinafter, CRT), includes a mask assembly which is composed of a main frame for supporting the shadow mask and a sub frame for supporting the main frame. When the minimum distance between the flat surface extended from the upper surface of the main frame and the flat surface extended from the lower surface of the sub frame is Lb, the height of the sub frame is Ls and the minimum distance between the flat surface extended from the upper surface of the main frame and the flat surface extended from the lower surface of the sub frame, in case the mask is attached to the mask assembly, is La, the following equation, 0.40≦Ls/Lb≦0.55 or 0.45≦(Ls−Lm)/Lb≦0.59 is satisfied and after compression, the following equation, 0.08≦(La−Lb)/(Lb-Lm)≦0.17 is satisfied.
    Type: Grant
    Filed: May 24, 2002
    Date of Patent: August 24, 2004
    Assignee: LG Electronics Inc.
    Inventors: Sung-Hun Kim, Kyung-Jin Zheong, In-Hyuk Hwang
  • Cathode ray tube
    Publication number: 20030146684
    Abstract: A Cathode Ray Tube (hereinafter, CRT), includes a mask assembly which is composed of a main frame for supporting the shadow mask and a sub frame for supporting the main frame. When the minimum distance between the flat surface extended from the upper surface of the main frame and the flat surface extended from the lower surface of the sub frame is Lb, the height of the sub frame is Ls and the minimum distance between the flat surface extended from the upper surface of the main frame and the flat surface extended from the lower surface of the sub frame, in case the mask is attached to the mask assembly, is La, the following equation, 0.40≦Ls/Lb≦0.55 or 0.45≦(Ls−Lm)/Lb≦0.59 is satisfied and after compression, the following equation, 0.08≦(La−Lb)/(Lb-Lm)≦0.17 is satisfied.
    Type: Application
    Filed: May 24, 2002
    Publication date: August 7, 2003
    Applicant: L.G. Philips Displays Korea Co., Ltd.
    Inventors: Sung-Hun Kim, Kyung-Jin Zheong, In-Hyuk Hwang