Patent ID: 6498443
Filing Date: 2002-12-24
Classification: H01J

Abstract:
A color TV tube apparatus, being of 28 inches or larger in diagonal size, having a maximum deflection angle of 115Â° or greater and less than 180Â°, and which uses a self-convergence method, the color TV tube apparatus comprising:a color TV tube; an electron gun; a deflection yoke, being mounted on a funnel part of the color TV tube and having a horizontal deflection coil for generating a pincushion-shaped horizontal deflection field, wherein the horizontal deflection coil is adjusted so that a vertical focus point of an electron beam lies 50 mm or less on the inside and 30 mm or less on the outside of each edge of the effective display screen area along the horizontal axis with a focusing of an electron beam by a lensing action of the electron gun non-operational; and a convergence correction coil, being mounted on a neck part of the color TV tube and functioning to correct convergence.