Bistable ferroelectric smectic liquid crystal display device having particular orientation film
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United States of America Patent
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Feb 20, 1990
Grant Date -
N/A
app pub date -
Mar 30, 1988
filing date -
Apr 10, 1987
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Bistable ferroelectric smectic liquid crystal display device. This device comprises a tight cell inserted between two polarizers formed from two glass walls, each provided with a display-appropriate electrode connected to an electric power supply for applying an electric field for controlling the liquid crystal to a chiral ferroelectric smectic liquid crystal film inserted between the electrodes. To obtain bistability and storage of the liquid crystal, one of the walls is covered with a material constituted by a stack of a silica layer, a polyimide layer, an optionally rubbed organosilane film in contact with the liquid crystal and the other wall is provided with a silica film covered with a Nylon film.
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