Patents Assigned to Samsun Display Devices Co., Ltd.
  • Water-soluble phosphor material for color picture tubes and a process for manufacturing the same
    Patent number: 5968415
    Abstract: The present invention provides a water-soluble gallate phosphor material with excellent luminous characteristics and a process for manufacturing of color CRT using the same material as above. The process improves luminous efficiency and color reproduction region and increases resolution due to decrease in electron spot from the current reduction by electron beams in luminance on the same phosphor screen, by introduction of the electrophotographic dry screening process without using water.
    Type: Grant
    Filed: May 13, 1998
    Date of Patent: October 19, 1999
    Assignee: Samsun Display Devices Co., Ltd.
    Inventors: Jongho Cho, Choonglak Kim