Reflecting cell with modulable reflectivity
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United States of America Patent
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Jul 7, 2020
Grant Date -
Oct 26, 2017
app pub date -
Oct 22, 2015
filing date -
Oct 31, 2014
priority date (Note) -
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Abstract
A reflecting cell including at least two substrates each covered by an electrode and facing each other, the substrates delimitating between them a volume which separates them and which is filled with a bistable liquid crystal-type material with a threshold field, for example a cholesteric liquid crystal, both electrodes being intended to be connected to a voltage source. This cell is characterized in that at least one of the electrodes is formed by associating a pattern, which does not entirely cover the surface of the substrate considered, and a conducting layer which covers the surface of the substrate considered, the conductivity of the material of the layer being lower than that of the material of the pattern.
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