Apparatus and method of operation for an electron beam source
US4651058A · kind A · utility
6Cited by
3References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 9, 1985 |
| Grant date | Mar 17, 1987 |
| Priority date | — |
| Expiry date | Jan 9, 2005 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J31/124
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Apparatus and method for substantially equalizing the potential drop along a line cathode used in an electron beam source adapted for use in a flat display device. The apparatus and method ensure that electrons from a power source are fed through both ends of the line cathode, substantially simultaneously. Thereby, the potential drop along the axial length of the line cathode is decreased, improving the uniformity of brightness of the display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.