The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 08, 2000

Filed:

Dec. 01, 1998
Applicant:
Inventors:

Dong-hee Han, Suwon-si, KR;

Sung-hwan Moon, Suwon-si, KR;

Seung-kwon Han, Seoul, KR;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
313404 ; 313402 ; 313405 ; 313406 ;
Abstract

A panel assembly for a cathode ray tube includes a panel having an inner phosphor screen and a side-wall, and a shadow mask having a plurality of beam-guide apertures. The shadow mask is placed behind the phosphor screen at a predetermined distance. A shadow mask frame is attached under the shadow mask to suspend it in the panel. The panel assembly further includes a plurality of stud pins embedded into the side-wall of the panel, a spring positioned between the shadow mask frame and the stud pins to interconnect them, and a vibration damping member for damping vibration of the shadow mask by converting mechanical stress applied to the shadow mask into electrical energy. The vibration damping member is formed with piezoelectric material layers provided on at least one of an outer periphery of the stud pin and between the spring and mask frame.


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