Color cathode ray tube with flat panel face

摘要

A color cathode ray tube of the present invention includes an evacuated envelope that is structured from a panel (1) having a phosphor screen (4) on its inner surface, a neck portion (2) containing therein an electron gun assembly (13), and a cone-shaped section called the funnel (3) for integrally coupling the panel and the neck together, wherein when the main scanning direction of a display screen formed of the panel is defined as an X direction whereas a direction at right angles to the main scan direction is as a Y direction, an equivalent radius of curvature (R xo ) of an outer surface of the panel in the X direction is at least 2.6 times greater than an equivalent curvature radius (R xi ) of the inner surface while forming on the inner panel surface an inside light absorption layer that is comprised of pigments as its principal component.