Fluorescent display device and driving method thereof
US5844531A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 31, 1995 |
| Grant date | Dec 1, 1998 |
| Priority date | — |
| Expiry date | Mar 31, 2015 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01J31/127
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A fluorescent display device is disclosed which includes: a cathode unit including a plurality of cathodes arranged in a matrix array; an anode unit including first and second groups of anode electrodes disposed above the cathode unit, arranged parallel to each other and coated with a fluorescent substance, the anode electrodes of each group being connected commonly with each other by wiring, the anode electrodes of one of the first and second groups being disposed as alternating with those of the other group; a voltage applying circuit for applying voltages of opposite polarities respectively to the first and second anode portions and alternating the polarities of the voltages; and a display controlling circuit for controlling electron emitting positions on the cathode unit and said voltage applying circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.