Surface stabilized ferroelectric liquid crystal devices

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United States of America Patent

PATENT NO 4840463
SERIAL NO

07225464

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Abstract

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A liquid crystal device including a ferroelectric liquid crystal disposed between plates treated to enforce a particular ferroelectric molecular orientation to the plates. The devices employ alone or in combination non-planar boundary conditions, polar boundary conditions, boundaries with multiple physical states, intrinsic spontaneous splay distortion of the polarization orientation field, combined ferroelectric and dielectric torques, layers tilted with respect to the plates. The plates are spaced by a distance sufficiently small to ensure unwinding of the helix typical in a bulk of the material to form either monostable, bistable or multistable states which exhibit novel electro-optic properties. The liquid crystal is responsive to an externally applied electric field, temperature or the like to make a light valve or other electro-optical device.

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Patent Owner(s)

Patent OwnerAddress
CLARK NOEL ANot Provided

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Clark, Noel A 3106 Kittrell Ct., Boulder, CO 80303 31 1210
Lagerwall, Sven T 30 Snackvagen, Goteborg, SE 23 899

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