Windows with electrically controllable transmission and reflection
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United States of America Patent
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Apr 28, 2009
Grant Date -
Dec 7, 2006
app pub date -
Mar 15, 2006
filing date -
Mar 15, 2005
priority date (Note) -
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Abstract
A window having electrically controllable transmission and reflection includes a layer of liquid crystal material and polarizers on either side thereof. Different combinations of absorptive and reflective polarizers are disclosed. These different combinations can be used in different applications to achieve the desired results. Transparent, conductive layers are provided to apply an electrical field to the liquid crystal material so as to selectively control the rotation of the polarization of light passing therethrough.
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