Color cathode ray tube with reduced halo
US5637956A · kind A · utility
0Cited by
4References
13Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 21, 1994 |
| Grant date | Jun 10, 1997 |
| Priority date | — |
| Expiry date | Jun 21, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2229/4872
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An electron beam aperture of a second grid electrode of a color cathode ray tube is a rectangular hole formed in the center of a slit-like recess having longer sides extending in the horizontal direction. The vertical width of the rectangular hole is greater than the width of each shorter side of the slit-like recess.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.