Method of manufacturing a cathode-ray tube for the display of co

Details Method of manufacturing a cathode-ray tube for the display of co Method of manufacturing a cathode-ray tube for the display of co

1975-02-26

1976-11-16

Kimlin, Edward C.

Gas separation: apparatus

Electric field separation apparatus

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

427 68, G03C 500

Patent

active

039922073

ABSTRACT:
Method of manufacturing a display screen for a shadow mask tube by projecting a negative image of the shadow mask on support provided with a first photosensitive layer, removing the unexposed regions by means of a solvent, depositing a second photosensitive layer containing a luminescent material of one color dissolved in a solution which becomes insoluble by exposure but is not attacked by an etchant which affects the first layer, exposing the second layer, and removing the exposed regions of the first layer together with superposed portions of the second layer, by the etchant.

REFERENCES:
patent: 2840470 (1958-06-01), Levine
patent: 3558310 (1971-01-01), Mayaud
patent: 3585034 (1971-06-01), Levinos
patent: 3614504 (1971-10-01), Kaplan
patent: 3623867 (1971-11-01), Saulnier
patent: 3661580 (1972-05-01), Mayaud
patent: 3712815 (1973-01-01), Rohrer et al.
patent: 3837885 (1974-09-01), Angelucci
patent: 3881928 (1975-05-01), Gravestein et al.
patent: 3915707 (1975-10-01), Gesswein et al.

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