Patent ID: 6388371
Filing Date: 2002-05-14
Classification: H01J

Abstract:
A color cathode ray tube comprising:a glass bulb comprising a substantially rectangular panel, upon which phosphors of a plurality of colors are provided, a funnel that is connected to a rear side of said panel, and a neck portion formed at a rear side of said funnel, in which an in-line electron gun for emitting an electron beam is provided; a substantially rectangular shadow mask having a plurality of apertures that are arranged in correspondence with the phosphors on said panel; and a substantially rectangular mask frame having a wall portion that supports at least one pair of opposing skirt portions of said shadow mask; wherein the surface of said shadow mask with said apertures is convex towards said panel, and a central portion along the length of said pair of opposing skirt portions protrudes in a direction parallel to the tube axis on the side of the electron gun greater than a peripheral portion along the length of said pair of opposing skirt portions.