| 摘要 |
The cold cathode device according to the present invention comprises a first electrode (2) formed on a substrate (1), an insulating film (3) formed on the first electrode, a thin film (4) formed on the insulating film for generating excited electrons and a second electrode (5) formed on the thin film. The electrons are injected by the second electrode during the first half-wave of each period of an A.C. voltage. The injected electrons form the space charge layer between the insulating film and the thin film. During the second half-wave of each period, the excited electrons are generated from the electrons stored in the space charge layer within the thin film and are emitted by the second electrode.
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