Flat display apparatus with supplemental biasing
US5436530A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | May 20, 1994 |
| Grant date | Jul 25, 1995 |
| Priority date | — |
| Expiry date | May 20, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J31/126
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A flat display apparatus is disclosed which includes a grid interposed between and spaced apart from control electrodes and an electron source. The grid which includes holes has a higher potential applied than the one applied to a cathode so as to enable electrons to pass through the holes. An additional grid may be interposed between and spaced apart from the grid and the control electrodes. Alternatively, a rear electrode is located between adjacent porous cover electrodes to connect them, and a second rear electrode is located near the rear electrode and has a lower potential applied than the one applied to the cover electrodes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.