Low power dissipation vacuum fluorescent display
US6051932A · kind A · utility
4Cited by
2References
19Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1998 |
| Grant date | Apr 18, 2000 |
| Priority date | — |
| Expiry date | Sep 21, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/021
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A vacuum fluorescent display comprises a plurality of filaments or filament sets, a controller, and a display portion. The controller controls one of the filaments or filament sets to be alternately connected to a power supply so as to emanate electrons as an electron source. Thus, a predetermined pattern can be displayed on the display portion in response to the electrons. The fact that the filaments or filament sets are alternately powered to induce hot-electron emanation can reduce the overall power consumption for the vacuum fluorescent display.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.