Field ion display device
US6570315B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 8, 2001 |
| Grant date | May 27, 2003 |
| Priority date | — |
| Expiry date | Feb 8, 2021 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J2329/46
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A field ion display device comprises a field ion emission plate, a microchannel plate and a fluorescent display plate, said plates being parallel to each other, with gaps there between, and being peripherally sealed with a thin gas filled inside. The device is addressed by X-Y encoding. When a signal is applied to an addressed point, positive ions are emitted from the corresponding point on the emission plate based on the signal strength, pass through the microchannel holes, impinge on the wall of the holes, so that the emission of the multifold secondary electrons is multiplied. Said secondary electrons are accelerated by the accelerating electrode, converted into a strong electron flow, extracted from the other side of the holes, again accelerated by the screen electrode, and finally bombard a corresponding pixel on the screen, thereby forming an image. The image has the advantage of good quality, high efficiency and low cost.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.