Display tube having printed copolymer film layer

Details Display tube having printed copolymer film layer Display tube having printed copolymer film layer

1984-12-26

1987-03-17

DeMeo, Palmer C.

Electric lamp and discharge devices

Cathode ray tube

Screen

313473, 427 64, 427 68, H01J 2928, B05D 506, B05D 512

Patent

active

046510532

ABSTRACT:
A display tube such as a cathode ray tube or fluorescent display tube which includes a film layer over the phosphor layer, and including a random copolymer with the following chemical structure: ##STR1## wherein R.sub.1, R.sub.3 represent individually H or CH.sub.3 ; R.sub.2 is H; and X is OH. The layer can be formed over the phosphor layer uniformly and thinly by means of a printing process to thereby shorten the manufacturing process and reduce the cost of manufacture.

REFERENCES:
patent: 4327123 (1982-04-01), Levine et al.
patent: 4423128 (1983-12-01), Koike et al.
patent: 4474855 (1984-10-01), Brixius et al.

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