Fluorescent display apparatus
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Nov 13, 1990
Grant Date -
N/A
app pub date -
Mar 29, 1989
filing date -
Mar 31, 1988
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fluorescent display apparatus as a constituent of picture elements of a large-screen display apparatus which is provided with control electrodes for controlling courses of thermoelectrons emitted from cathodes, thereby decreasing fluctuation in brightness of a fluorescent display cell emitting light upon being bombarded by the electrons and preventing the electrons from bombarding other than predetermined fluorescent display cell with result of no emission of false light.
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Cited Art Landscape
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