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United States of America Patent
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Apr 12, 1994
Grant Date -
N/A
app pub date -
Oct 15, 1991
filing date -
Apr 13, 1989
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A display comprises a static unit (8) on which is mounted a rotating unit (7) driven by a motor (12). The rotating unit carries light emitting diodes (6) arranged as vertical columns which sweep around a cylindrical surface. The light emitting diodes (6) are controlled by a control circuit (6) in accordance with data stored in a memory (61) so as to provide a cylindrical display. The control circuit (60) and memory (61) are located in the rotating unit 97) and the memory (612) has a capacity for storing several different images for display.
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