Cathodoluminescent display means using guided electrons and its control process
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United States of America Patent
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-
Jul 4, 1995
Grant Date -
N/A
app pub date -
Jul 25, 1992
filing date -
May 24, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The present invention provides a cathodoluminescent display which uses guided electrons and a control process for such display. The display is in matrix form, an image or picture point or dot being formed at each row-column intersection. Opposite the columns, outside the image dots, a source continuously emits electrons. As a function of the signal which it receives, a column electrode guides up to the selected row the electrons emitted opposite it, or drives them back to the source. The guidance column electrodes are covered by an electrically insulating layer, the guidance of the electrons taking place in a vacuum in the immediate vicinity of the insulant perpendicular to the guidance electrodes.
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