Patents Examined by Michael D. Day
  • Shadow mask for cathode ray tube
    Patent number: 6433467
    Abstract: A shadow mask for a cathode ray tube having a faceplate panel with an inner phosphor screen includes a front surface and a side wall. The front surface is formed with a beam-guide portion having a plurality of apertures, and a non-opening portion surrounding the beam-guide portion. The side wall is bent from the non-opening portion at an angle, and fixed to the panel via a mask frame. The front surface of the shadow mask has a predetermined waved pattern in at least one direction.
    Type: Grant
    Filed: February 3, 2000
    Date of Patent: August 13, 2002
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Kwang-Sik Lee, Do-Hun Phun, Dong-Hwan Kim, Tae-Hoon Kweon, Jung-Soo Chang