Patent ID: 7008739

Claim:
A method for manufacturing a fluorescent film on a screen for a color braun tube comprising the steps of: forming a black matrix of a light-absorbing material on the screen, the matrix being formed so as to expose portions of the screen; forming a red fluorescent film pattern on the screen having the black matrix formed thereon, wherein the screen weight of the red fluorescent film pattern is between 2.47 mg/cm 2 and 3.23 mg/cm 2 ; forming a blue fluorescent film pattern on the screen having the black matrix and the red fluorescent film pattern formed thereon; forming a green fluorescent film pattern on the screen having the black matrix and red and blue fluorescent film patterns formed thereon; wherein: (a weight of the green fluorescent film pattern per unit area)>(a weight of the red fluorescent film pattern per unit area)>(a weight of the blue fluorescent film pattern per unit area).