Method for forming a color television picture tube screen

Details Method for forming a color television picture tube screen Method for forming a color television picture tube screen

1972-01-14

1977-09-20

Gwinnell, Harry J.

Gas separation: apparatus

Electric field separation apparatus

Electrode cleaner, apparatus part flusher, discharger, or...

96 27E, 313474, 427 68, G03C 500

Patent

active

040494519

ABSTRACT:
A substantially continuous line screen structure pattern is formed in a color television picture tube having an interrupted-aperture shadow mask by applying a photosensitive material to a screen support and projecting light from an extended source through the shadow mask apertures and onto the coated screen support. In a preferred embodiment, the line screen is formed by projecting light from a line source through a shadow mask having a plurality of rows of elongated apertures and onto the coated screen support.

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patent: 3725106 (1973-04-01), Hosokoshi
patent: 3764366 (1973-10-01), Ninagawa et al.
patent: 3779760 (1973-12-01), Miyaoka

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