Flat panel display device including electron beam sources and control electrodes
US7400083B2 · kind B2 · utility
0Cited by
4References
3Claims
0Family size
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Key dates
| Filing date | Sep 10, 2004 |
| Grant date | Jul 15, 2008 |
| Priority date | — |
| Expiry date | Dec 12, 2025 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J29/48
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
Using a cathode material with which an electron emission having sufficient intensity is obtained with a low electric field, over a back substrate, cathodes and first control electrodes are formed on the same plane, which is parallel to the back substrate, thus forming electron beam sources, and second control electrodes, which focus electrons taken out from the electron beam sources, are formed, whereby it is possible to obtain an image display of high brightness.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.