Liquid crystalline electrooptical device

Details Liquid crystalline electrooptical device Liquid crystalline electrooptical device

1995-05-04

1996-08-06

Sikes, William L.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 99, 359100, 359 55, 359 84, G02F 11337, G02F 1137

Patent

active

055439500

ABSTRACT:
An electrooptical light modulating device includes a liquid crystalline material disposed between first and second opposing cell wall structures and comprising liquid crystal of positive dielectric anisotropy. The first cell wall structure is treated with a first aligning material to homeotropically align liquid crystal molecules of the material and the second cell wall structure is treated with a second aligning material that is different from the first aligning material to homeotropically align liquid crystal molecules of the material, whereby the liquid crystal exhibits a unipolar electrooptic effect in the presence of an electric field.

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