Image pickup device including electron-emitting devices
US6744063B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jan 5, 2001 |
| Grant date | Jun 1, 2004 |
| Priority date | — |
| Expiry date | Jan 8, 2022 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J1/312
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An image pickup device includes a pair of first and second substrate facing each other with a vacuum space interposed therebetween, and a plurality of electron-emitting devices provided over said first substrate and a photoconductive layer provided over said second substrate. Each electron-emitting device includes an insulating layer deposited over an electron source layer formed over an ohmic electrode; and a metal thin film electrode deposited over said insulating layer. The insulating layer and said metal thin film electrode have an island region of electron-emitting section in which their film thicknesses are gradually reduced toward said electron source layer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.