Fluorescent display device
US4303917A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Dec 20, 1978 |
| Grant date | Dec 1, 1981 |
| Priority date | — |
| Expiry date | Dec 20, 1998 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J31/15
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fluorescent display device comprising a display tube section having a plurality of phosphur-coated anodes arranged in the form of a matrix and electrically connected together on a row-by-row basis, the anodes being grouped into a plurality of groups each having a plurality of anodes, primary control electrodes provided opposite to the anodes, one for each group, secondary control electrodes provided between the primary control electrodes and the anodes, one for each column, the groups being grouped into a plurality of blocks each containing at least two groups, and the secondary control electrodes being provided so that those disposed opposite to the corresponding columns of the blocks are electrically connected together by control-electrode wires.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.