Shadow mask for cathode ray tube and method of manufacturing same
US6247988A · kind A · utility
0Cited by
4References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 6, 2000 |
| Grant date | Jun 19, 2001 |
| Priority date | — |
| Expiry date | Jul 6, 2020 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J9/142
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Disclosed is a shadow mask for a cathode ray tube (CRT) and a method of manufacturing the same. The shadow mask includes a nitrogen compound. The method includes the steps of heat-treating a metallic plate having a plurality of apertures formed therein in the presence of a nitriding gas, and press-forming the metallic plate into a shadow mask shape.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.