Display assembly including an electro-optical cell and a photovoltaic cell
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United States of America Patent
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May 4, 2004
Grant Date -
Mar 7, 2002
app pub date -
Jul 23, 2001
filing date -
Jul 21, 2000
priority date (Note) -
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status (Latency Note)
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Abstract
A display assembly is disclosed including an electro-optical cell (28), for example a liquid crystal cell, and a photovoltaic cell (61) acting as a back reflector. In order to improve the aesthetic appearance of the display, the photovoltaic cell (61) reflects predetermined wavelengths and thus exhibits a desired color in the transparent zones (90) of the electro-optical cell. In particular, the reflected light can be colored by reflection onto a multi-layered reflective filter including a transparent electrode (69) of the photovoltaic cell. This cell may form part of the dial of a watch.
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