Double-faced vacuum fluorescent display device and method for driving same
AssigneeFutaba Denshi Kogyo K.K.
InventorsYukio Ogawa, Kazuyoshi Ishikawa, Katsutoshi Kougo, Yoshikazu Iidaka, Hiroaki Kawasaki
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Abstract
A simple and slim double-faced vacuum fluorescent display device has no grid, thereby lowing the power consumption and fabrication cost thereof. Anode electrodes on one of the front plate and the back plate function as grids for anode electrodes on the other one of the front plate and the back plate. The light emitted from anode electrodes is not blocked by grids, thereby enhancing light emitting efficiency thereof.
Claims19
A double-faced vacuum fluorescent display device including a front plate, a back plate and a filament installed between the front plate and the back plate facing each other,
- characterized in that the front plate has one or more front anode electrodes and the back plate has one or more back anode electrodes, each anode electrode containing a fluorescent layer coated thereon;
- the front anode electrodes function as control electrodes to control an electron emission from the filament toward the back anode electrodes;
- and the back anode electrodes function as control electrodes to control the electron emission from the filament toward the front anode electrodes.
A double-faced vacuum fluorescent display device including a front plate, a back plate and a filament installed between the front plate and the back plate facing each other,
- characterized in that the front plate has one or more front anode electrodes and the back plate has one or more back anode electrodes, each anode electrode containing a fluorescent layer coated thereon;
- when the front anode electrodes are selected to be turned on to emit light, the back anode electrodes function as control electrodes to control an electron emission from the filament toward the front anode electrodes;
- and when the back anode electrodes are selected to be turned on to emit light, the front anode electrodes function as control electrodes to control the electron emission from the filament toward the back anode electrodes.
Dependencies are inferred from the claim text.