Liquid Crystal Device Comprising Chiral Nematic Liquid Crystal Material in a Helical Arrangement

This invention generally relates to a liquid crystal device, and more particularly to such a device in the form of a liquid crystal cell such as for a display device, and further relates to a display device having the liquid crystal device, an optical waveguide device comprising the liquid crystal device, a Variable Optical Attenuator comprising the liquid crystal device, an optical switch comprising the liquid crystal device, a method of controlling transmission of polarised light, and to a further liquid crystal device. A liquid crystal device for controlling transmission of polarised light, comprising: chiral nematic liquid crystal having a helical arrangement of liquid crystal molecules in the absence of an electric field; and at least two electrodes for applying an electric field having a component normal to the helical axis of the chiral nematic liquid crystal, wherein the chiral nematic liquid crystal has negative dielectric anisotropy.

Attached files:


Patents:
WO 2,010,139,995

Inventor(s): CHOI SU SOEK [GB]; CASTLES FLYNN [GB]; MORRIS STEPHEN [GB]; GARDINER DAMIAN [GB]; COLES HARRY [GB]

Type of Offer: Sale



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