Method of forming a fluorescent screen for a color CRT

Details Method of forming a fluorescent screen for a color CRT Method of forming a fluorescent screen for a color CRT

1988-03-09

1989-08-22

Dees, Jose G.

Radiation imagery chemistry: process, composition, or product th

Producing cathode-ray tube or element thereof

430 24, 430 25, 430 26, 430 30, 313408, G03C 500

Patent

active

048595497

ABSTRACT:
A method of forming a fluorescent screen for a color CRT, by exposing a photosensitive film on the inner surface of a curved panel, to form color stripes with different stripe widths. A flat mask is used, with slits aligned with the curved panel. The spacing of the mask and the width of the slits are controlled to produce a predetermined pattern factor F according to the expression: ##EQU1## where A is the width of the slits in the mask, b is the distance between the mask and the panel surface, and .lambda. is the wavelength of the exposing light.

REFERENCES:
patent: 3652895 (1972-03-01), Tsuneta et al.
patent: 3856525 (1974-12-01), Inoue
patent: 4162421 (1979-07-01), Morrell
patent: 4271247 (1981-06-01), Morrell
patent: 4296189 (1981-10-01), Kuzminski
patent: 4303466 (1981-12-01), Thoms
patent: 4475797 (1984-10-01), Park

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