Emitting device having electron emitting nanostructures and method of operation
US7501750B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 31, 2005 |
| Grant date | Mar 10, 2009 |
| Priority date | — |
| Expiry date | Jan 27, 2027 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S977/742
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
An emission device is provided for extracting electrons onto an anode of a visual display. The emission device (10) includes a conductivity limited material (18) positioned between first and second electrodes (14, 16) and having a surface (26). A plurality of catalytic nanoparticles (22) are distributed throughout the conductivity limited material (18), wherein some of the catalytic particles (22) are contiguous to the surface (26). A plurality of nanostructures (24), such as carbon nanotubes, are grown from the catalytic nanoparticles (22) contiguous to the surface (26). A voltage is applied across the conductivity limited material (18) having a plurality of catalytic particles (22) embedded therein, thereby causing the electrons to tunnel between the catalytic particles (22). An anode (28) is spaced apart from the nanostructures (24) for extracting and receiving electrons emitted from the nanostructures (24) when a first potential is applied across the first and second electrodes (14, 16) and a second potential is applied to the anode (28).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.