Aperture grill for a color cathode ray tube

Details Aperture grill for a color cathode ray tube Aperture grill for a color cathode ray tube

1998-07-28

2000-08-29

Patel, Nimeshkumar D.

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

313403, 313407, H01J 2980

Patent

active

061113476

ABSTRACT:
An aperture grill for a color cathode ray tube includes a mask having a plurality of slits, a frame for securing the mask in a taut state, and a vibration suppressing unit for suppressing the vibration of the mask. The vibration suppressing unit comprises a plurality of damping wires having ends fixed on opposing sides of the frame and stretched over the mask in a lengthwise direction, and a plurality of protrusions extending from the damping wires and spaced apart from each other a predetermined distance. The protrusions make contact with or are welded to slit formation elements of the mask, or are partly inserted into the slits and contact lateral sides of the neighboring slit formation elements to suppress vibration of the slit formation elements.

REFERENCES:
patent: 4504764 (1985-03-01), Sakamoto et al.
patent: 4827179 (1989-05-01), Adler et al.
patent: 5647653 (1997-07-01), Cherukuri
patent: 5672935 (1997-09-01), Ito et al.

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