Electric lamp and discharge devices – Cathode ray tube – Screen
Patent
1976-01-06
1978-06-13
Goolkasian, John T.
Electric lamp and discharge devices
Cathode ray tube
Screen
96 1R, 96 1LY, 96 12, 96 361, 427 16, 427 68, G03G 1310, G03G 1301, H01J 3108, H01J 3120
Patent
active
040951340
ABSTRACT:
The electrophotographic manufacture of the phosphor patterns for a display screen of a color television display tube. This process is performed in as many stages as there are different phosphor zones and possibly also for a light-absorbing intermediate pattern. Contamination of a phosphor which has already been precipitated may easily occur with a next phosphor in this case. According to the invention this is obviated by an intermediate rinsing operation with a solution of an antistatic agent, in an apolar solvent. The antistatic agent is selected from the group consisting of soaps of bivalent metals, soaps of multivalent metals and mixtures thereof.
REFERENCES:
patent: 2527262 (1950-10-01), Hart et al.
patent: 3475169 (1969-10-01), Lange
patent: 3489556 (1970-01-01), Drozd
patent: 3489557 (1970-01-01), Lange et al.
patent: 3512965 (1970-05-01), Matkan
patent: 3764312 (1973-10-01), Honjo
patent: 3793018 (1974-02-01), Van Engeland et al.
patent: 3806340 (1974-04-01), Sato et al.
patent: 3856518 (1974-12-01), Strik et al.
Chemical Abstracts, vol. 71, 1969, 82482m.
Goolkasian John T.
Spain Norman N.
Trifari Frank R.
U.S. Philips Corporation
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