Fluorescent luminous type display device
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United States of America Patent
Stats
-
Mar 12, 2002
Grant Date -
Dec 13, 2001
app pub date -
Dec 22, 2000
filing date -
Dec 28, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A flourescent luminous type display device capable of providing display at increased luminance while being simplified in structure. An insulating substrate constituting a vacuum airtight envelope is laminatedly formed on an inner surface thereof with cathode electrodes and emitters in order. Another insulating substrate is laminatedly formed on an inner surface thereof with an anode electrode and phosphor layers. The phosphor layers contain a secondary electron emission material. When a switch is closed, electron emitted from the emitters are permitted to be impinged on the phosphor layers, leading to luminescence thereof. The anode electrode merely has a pulse-like drive signal applied thereto through a capacitor, however, secondary electrons emitted from the phosphor layers permit the luminescence to be maintained even after stop of the drive signal.
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