Electrochromic display device
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United States of America Patent
Stats
-
Oct 19, 1982
Grant Date -
N/A
app pub date -
Sep 10, 1980
filing date -
Oct 12, 1979
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An electrochromic display device and apparatus for producing such a device including a display electrode, a confronting electrode, and an electrolyte-impregnated porous layer disposed between the electrodes. The porous member has an average pore diameter of 0.1 to 50 .mu.m with porous spaces occupying at least 30% by volume of the porous member. Pigment is held in the porous spaces to an extent of 1 to 50% by volume of the porous spaces. With this construction, the display device provides an excellent display background.
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Cited Art Landscape
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