Patent ID: 6469431
Filing Date: 2002-10-22
Classification: H01J

Abstract:
A color cathode-ray tube comprisinga shadow mask and a mask frame for fixing the shadow mask, the shadow mask being a flat plate in which many slot or dot apertures are formed, in a condition in which a tension is applied in one direction, the shadow mask being fixed in the mask frame in an end portion relative to the direction in which a tension is applied, the shadow mask being provided with a vibration attenuator attached to the shadow mask and attenuating the vibration on the entire surface of the shadow mask due to the vibration propagated to the color cathode ray tube, the vibration attenuator being attached to a second end portion of the shadow mask in a direction perpendicular to the direction in which the tension is applied, the second end portion not being fixed in the mask frame, in which the vibration attenuator does not have any portion adhering to the shadow mask and also is movable.