STRUCTURE FOR DAMPING VIBRATION OF SHADOW MASK IN FLAT CATHODE RAY TUBE

摘要

The present invention relates to a shadow mask anti-vibration structure of a planar cathode ray tube. To this end, the present invention provides a shadow of a flat cathode ray tube having a plurality of damper wires fixed to the mask support and positioned in a tensioned state between beam through holes on the shadow mask using a shadow mask fixed to the mask support and predetermined members. In the mask vibration damping structure, the shadow mask vibration damping structure of a flat cathode ray tube, characterized in that the first natural frequency of the damper wire is included in the range larger or smaller than the range of the shadow mask third natural frequency ± 10% value To provide. By the present invention, the anti-vibration effect is improved in the planar cathode ray tube, thereby simplifying the number of parts and the process.