Fluorescent display device and method for driving same
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United States of America Patent
Stats
-
Jan 22, 2002
Grant Date -
Jul 5, 2001
app pub date -
Dec 13, 2000
filing date -
Dec 13, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In a fluorescent display device having control electrodes and anodes, each anode having an anode electrode and a fluorescent layer formed thereon, a filament is installed between the control electrodes and the anode electrodes. When an anode is selected to be turned on to emit light, a first voltage (V1) is applied to the filament, a second voltage (V2) is applied to the selected anode and a third voltage (V3) is applied to a control electrode facing the selected anode, wherein V2 is greater than V1 and V3 is equal to or greater than V1. When a voltage applied to a target control electrode is lower than a voltage applied to the filament by more than a predetermined voltage difference, an anode facing the target control electrode is not turned on to emit light even when V2 is applied thereto.
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