Cold cathode electron source element with conductive particles embedded in a base
US5760536A · kind A · utility
13Cited by
6References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 23, 1994 |
| Grant date | Jun 2, 1998 |
| Priority date | — |
| Expiry date | Nov 23, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2201/30457
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A cold cathode electron source element having a cold cathode on a substrate. The cold cathode has dispersed in a cold cathode base particles of a conductive material having a lower work function than the base and a particle size which is sufficiently smaller than the thickness of the cold cathode. The element can be driven with a low voltage to induce high emission current in a stable manner. The cold cathode is easily processable. The element can have an increased surface area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.