CRT having color filter with a special green filter

A color picture tube, comprising:

• a light transmissive face plate having an effective display surface for displaying a picture;
• a funnel, the front end of which is connected to the rear end of said face plate, the rear end of said funnel being narrow, said funnel being airtightly sealed with said face plate as a sheath of the color picture tube;
• a fluorescent substance layer coated on the inner surface of the effective display surface of said face plate, said fluorescent substance layer having color fluorescent substances corresponding to red, blue, and green pixels;
• a color filter disposed between said face plate and said fluorescent substance layer and having color cells corresponding to the red, blue, and green pixels;
• and
• an electron gun disposed at the rear end of said funnel and adapted for radiating an electron beam to said fluorescent substance layer corresponding to a display picture,
• wherein the color cells corresponding to the green fluorescent substance of said color filter include a pigment that is a mixture of Fe.sub.2 O.sub.3 particles and at least one selected from the group consisting of TiO.sub.2 --NiO--CoO--ZnO particles, CoO--Al.sub.2 O.sub.3 --Cr.sub.2 O.sub.3 --TiO.sub.2 particles, and CoO--Al.sub.2 O.sub.3 --Cr.sub.2 O.sub.3 particles.