CATHODE-RAY TUBE AND CATHODE-RAY TUBE DISPLAY DEVICE

摘要

PURPOSE:To restrain alternating electric field (unnecessary radiating electric field) emitted from a display surface of a cathode-ray tube display device. CONSTITUTION:Capacitance between a deflection yoke 6 and an interior conductive film 13 is reduced by reducing an area of the interior conductive film 13 formed in a funnel 9 of a cathode-ray tube device 1 opposite to the deflection yoke 6. Thereby, pulse voltage supplied to the deflection yoke reduces ampilitude of alternating voltage generated in the interior conductive film by capacitive coupling and the alternating field radiated frontwardly from a face plate 3 of the cathode-ray tube caused by the alternating voltage can be restrained.