Composition for forming electron emission source, method for preparing electron emission source using the same, and electron emission source prepared therefrom
US7534373B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 30, 2005 |
| Grant date | May 19, 2009 |
| Priority date | — |
| Expiry date | Jan 31, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/783
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
The present invention provides a composition for forming an electron emission source comprising a carbon-based material and a vehicle comprising a resin component and a solvent component. The resin component is a material that has less than 0.5 wt % of carbon deposits after undergoing a heat treatment at 450° C. under nitrogen atmosphere. The present invention also provides a method of preparing an electron emission source using the composition for forming an electron emission source, and an electron emission source that is prepared using the electron emission source. The electron emission source prepared using the composition has a small amount of the carbon deposits which improves its electric current density and lengthens its lifespan.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.