Patents Assigned to Tryonics Corporation
  • Patent number: 6208404
    Abstract: There is provided a method of manufacturing a color display including a color filter and a black matrix, characterized in that it comprises the steps of: forming a film of zinc oxide on a transparent substrate; forming the the color filter on the said film of zinc oxide; and thereafter, applying a deposit of electroless copper plating on an area of the said film of zinc oxide on which the said color filter is not formed, the said deposit having a thickness which is substantially equal to a thickness of the said color filter and constituting an element of said black matrix. Thus, a color display may be provided with a black matrix that is of high optical density and a low reflectivity. The black matrix can also be commensurate with film thickness with the color matrix. No photo lithographic process is required in preparing the color filter and black matrix. Various modified forms of embodiments of the method of manufacturing a color display are also disclosed.
    Type: Grant
    Filed: May 13, 1997
    Date of Patent: March 27, 2001
    Assignee: Tryonics Corporation
    Inventors: Makoto Tomoyori, Akira Fujishima, Kazuhito Hashimoto