Patent ID: 6979945
Filing Date: 2005-12-27
Classification: H01J

Abstract:
1. A cathode ray tube, comprising: a front panel; a fluorescent screen formed on an interior surface of the panel; a funnel fastened to the panel, the funnel including a neck part and a screen part opposing the neck part, wherein the screen part is fastened to the panel; an electron gun coupled to the neck part for emitting electron beams, the electron beams formed of a plurality of electrons; a deflection yoke for deflecting electrons within the electron beams in horizontal and vertical directions, wherein the deflection yoke includes horizontal deflection coils for horizontally deflecting electrons within the electron beams and vertical deflection coils for vertically deflecting electrons within the electron beams, wherein a portion of at least one of the horizontal and vertical deflection coils proximate the screen part has a roughly rectangular cross section; a holder for holding and insulating the horizontal and vertical deflection coils; and a ferrite core exterior of the vertical deflection coils, wherein a cross section of a portion of the ferrite core proximate the screen part includes diagonal regions, horizontal regions, and vertical regions, wherein a thickness of the diagonal regions is less than thicknesses of the horizontal and vertical regions.