Polymer dispersed liquid crystal (PDLC) film using heat or an electric field to change state and the other to change back
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United States of America Patent
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Dec 14, 1999
Grant Date -
N/A
app pub date -
Mar 28, 1996
filing date -
Mar 30, 1995
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
There is disclosed an information displaying medium having a base member and a writable displaying unit disposed thereon. The writable displaying unit has a reversible displaying element including a polymer/liquid crystal composite film. A processing means including a control means and an information recording unit is buried in the base member and functions as a semiconductor device. A communication means is buried in the base member for exchanging signals with an external apparatus.
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