Patent ID: 6501214
Filing Date: 2002-12-31
Classification: H01J

Abstract:
A color cathode ray tube comprising:an evacuated envelope including a panel portion having a phosphor film formed on an inner surface thereof, a neck portion accommodating an electron gun, and a funnel portion connecting the neck portion and the panel portion, a color selection electrode including a main surface which faces the phosphor film and in which a plurality of electron beam apertures are formed, skirt portions bent from the main surface in the direction toward the neck portion, and tongue portions which are protruded from the skirt portions in the direction away from the main surface, and a mask frame holding the color selection electrode by fixedly securing the tongue portions, wherein the improvement being characterized in that stress absorption hole portions are formed in the tongue portions of the color selection electrode, and the distance from a neck-side end portion of the tongue to the stress absorption hole portions is set equal to or more than 3 mm.