Surface stabilized ferroelectric liquid crystal devices with die

Details Surface stabilized ferroelectric liquid crystal devices with die Surface stabilized ferroelectric liquid crystal devices with die

1992-10-30

1996-09-10

Sikes, William L.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359100, G02F 113

Patent

active

055551114

ABSTRACT:
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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