Abstract: The present invention relates to a process for manufacture of color cathode-ray tube for preventing the deterioration of color purity of red phosphor while enhancing the brightness and the contrast of color cathode-ray tube, which comprises steps of forming a black matrix film corresponding to 3 colors of green(G), blue(B) and red(R) onto the panel glass by using 0.067-0.075 g atom (content relative to 1 mol of Y.sub.2 O.sub.3) of europium(Eu) as an activator for red phosphor; forming a 3 color fluorescent film onto said black matrix film, wherein said 3 color fluorescent film consists of green phosphor, red phosphor to which predetermined amount of red pigment having 50-70% of reflectance has been adhered, and blue phosphor to which predetermined amount of blue pigment having 50-65% of reflectance has been adhered; coating an organic film on the 3 color fluorescent film; forming a metal reflective film thereon; and thermally decomposing the organic film at high temperature to obtain a fluorescent plane.

Abstract: A color cathode ray tube includes a black matrix layer formed on the flat portion of a glass panel, a patterned metal oxide layer formed on the black matrix layer, a fluorescent layer formed on the patterned metal oxide layer and directly on the glass panel therebetween, and a metal reflection layer formed on the fluorescent layer on both the curved and flat portions of the glass panel, wherein the mean particle size of the metal oxide is larger than the mean particle size of the black matrix. The relative particle size of the metal oxide and the black matrix provides for increased adhesion of the reflective metal layer, and alleviates problems with out-gassing of the black matrix.