Panel assembly for cathode ray tube with vibration damping member
US6100629A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 1, 1998 |
| Grant date | Aug 8, 2000 |
| Priority date | — |
| Expiry date | Dec 1, 2018 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2229/0744
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.