Flat display screen cathode plate
US6798143B2 · kind B2 · utility
5Cited by
5References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2001 |
| Grant date | Sep 28, 2004 |
| Priority date | — |
| Expiry date | Mar 26, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J29/467
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cathode plate of a flat display screen of the type including a set of electron emission cathode conductors, organized in columns, a set of electron extraction grid conductors, organized in rows, and a peripheral protection area, surrounding an active area taking part in the display, to prevent propagation of secondary electrons out of the perimeter of the protection area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.