COLOR CATHODE RAY TUBE HAVING A FACEPLATE-MOUNTED METAL FRAME WITH A WELDED-ON TENSION FOIL SHADOW MASK

摘要

An improved front assembly for a color cathode ray tube having a tension foil shadow mask is disclosed The faceplate of the tube has on its inner surface a centrally disposed phosphor target surrounded by a peripheral sealing area adapted to mate with a funnel. A separate metal faceplate frame is secured to the inner surface of the faceplate between the sealing area and the target. The separate metal frame according to the invention supports a welded-on tension foil shadow mask a predetermined distance from the inner surface of the faceplate. The separate faceplate-mounted metal frame may have according to the invention a plurality of slurry-passing structures contiguous to the inner surface of the faceplate for pasting any surplusage of slurry during the radial-flow slurrydeposition process used in screening the faceplate. Various configurative embodiments of the faceplate-mounted metal frame according to the invention are also disclosed.