Graphic Arts Techniques in the Deposition of Phosphor Screens for Color Television Tubes.

The requirement that the phosphors in color television kinescopes be deposited in ordered geometrical patterns has resulted in the adoption of graphic arts techniques for applying the phosphors. These techniques make available solutions for the problems introduced by this requirement which are not available by the use of conventional black and white television phosphor deposition means. A brief description of the construction and the principles of operation of the shadow mask tube is included. Silk screen process techniques which made possible the first commercial color television tubes are described with emphasis on departures from standard silk screen practice.