Electron emitting device, electron source, image forming apparatus and producing methods of them
US6827619B2 · kind B2 · utility
9Cited by
7References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 25, 2002 |
| Grant date | Dec 7, 2004 |
| Priority date | — |
| Expiry date | Mar 2, 2023 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2201/3165
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
In an electron emitting device, an electron source and an image forming apparatus making use of it, and producing methods of them, an organic film is present on a pair of conductive films forming the electron emitting device. This organic film is placed in an area on the conductive films. This prevents occurrence of leak paths between the conductive films, which used to occur because of change of the organic film on the substrate into a conductor where the organic film existed on the substrate outside the area of the conductive films, and prevents decrease in electron emission efficiency.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.