Crt screen structure produced by photographic method

Details Crt screen structure produced by photographic method Crt screen structure produced by photographic method

G - Physics

03

C

96/230

G03C 5/00 (2006.01) H01J 9/227 (2006.01)

Patent

CA 1111698

CRT SCREEN STRUCTURE PRODUCED BY PHOTOGRAPHIC METHOD ABSTRACT OF THE DISCLOSURE A method for preparing a luminescent-screen struc- ture for a cathode-ray tube comprising (a) exposing a water-soluble photopolymeric film to a light image to insolublize selected portions of the film, (b) developing the exposed film by flushing the exposed film with an aqueous medium to remove the still-soluble portions of the film, (c) rinsing the retained film regions with an aqueous solution containing borate ions, (d) overcoating the retained film regions with a layer containing particles of screen-structure material, (d) and then developing the overcoating by removing the retained film regions and the overcoating thereon.

303497

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