Method of forming phosphor pattern on fluorescent screen for col

Details Method of forming phosphor pattern on fluorescent screen for col Method of forming phosphor pattern on fluorescent screen for col

1985-07-08

1986-09-16

Bowers, Jr., Charles L.

Radiation imagery chemistry: process, composition, or product th

Producing cathode-ray tube or element thereof

Using specified radiation-sensitive composition other than a...

430 23, 430 29, 430144, G03C 500

Patent

active

046122680

ABSTRACT:
A method of forming a color picture tube fluorescent screen by so-called dry process. After a photosticky substance mainly containing a diazonium compound is coated on a panel inner face, phosphor is adhered to portions of the compound which have been exposed to light through a color selection electrode and rendered sticky, and surplus phosphor applied on unexposed portions of the compound is removed, the above steps being consecutively repeated for phosphors of three colors to form picture elements of triads of three color phosphors on the panel inner face. The panel inner face is then treated with an aqueous solution containing at least polymer coagulant.

REFERENCES:
patent: 3269838 (1966-08-01), Saulnier
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patent: 3515553 (1970-06-01), Tiley
patent: 3981729 (1976-09-01), Saulnier
patent: 4273842 (1981-06-01), Nonogaki et al.
patent: 4293586 (1981-10-01), Unnai et al.
patent: 4324850 (1982-04-01), Tomita
patent: 4339475 (1982-07-01), Hinosugi et al.
Levy, S. et al., "The Preparation of Phosphor Screens for Color-Television Tubes", Sylvania Tech., 7/1953, pp. 60-63.

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