METHOD FOR CORRECTING PINCUSHION OF INTERMEDIATE PORTION USING HORIZONTAL DEFLECTION COIL AND HORIZONTAL DEFLECTION COIL USED THEREFOR

摘要

PURPOSE: A method and a horizontal deflection coil are provided to reduce manufacturing costs and power consumption, while achieving improved productivity and quality. CONSTITUTION: A method comprises a step of dividing a screen bent portion(10) of a deflection coil into four sections, and extending, toward the screen, the effective length of specific part of an extension portion(13) disposed in the diagonal direction of the screen bent portion of each section so as to compulsorily generate pincushions at the edge of the screen, wherein the extension portion interconnects a neck portion(11) and the screen bent portion; and a step of suppressing pincushions generated in the previous step by the pincushion control operation of the horizontal deflection control circuit.