APPARATUS FOR CORRECTING MIS-CONVERGENCE OF DEFLECTION YOKE

摘要

PURPOSE: An apparatus for correcting mis-convergence of a deflection yoke is provided to correct simultaneously H-shift and Yv mis-convergence by using a ferrite bar having an H-shift correction portion and a Yv correction portion. CONSTITUTION: A deflection yoke is formed with a coil separator(10) and a deflection coil. The deflection coil is used for generating deflection magnetic field in order to deflect electron beams emitted from an electron gun to particular pixels. The deflection coil is formed with a horizontal deflection coil(12) and a vertical deflection coil(14). The horizontal deflection coil(12) is installed at the inside of the coil separator(10) to generate a horizontal deflection magnetic field of a pin cushion type toward a vertical direction. The vertical deflection coil(14) is installed at the outside of the coil separator(10) to generate a vertical deflection magnetic field of a barrel type toward a horizontal direction. A ferrite bar(16) is installed at the outside of the horizontal deflection coil(12). A mis-convergence portion is installed at a left side or a right side of the deflection yoke(12). The mis-convergence portion is formed with a ferrite bar(18) including an H-shift correction portion and a Yv correction portion.