Lighted dot matrix display
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
Sep 15, 1981
Grant Date -
N/A
app pub date -
Sep 4, 1979
filing date -
Sep 4, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A dot matrix display of the liquid crystal type operative in either transmissive or reflective modes includes means to illuminate the back of the display, and means for electrically reversing the image on the display from dark on a light background to light (transparent) on dark background for transmissive viewing when the effective light intensity of the illuminating means is greater than the effective ambient light intensity on the front of the display.
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Cited Art Landscape
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