Raychem Limited

Kathleen Di Zio

Robert H Reamey

Aldrich N Lau

Lanchi P Vo

John R Havens

Hundi Panduranga Kamath

Akira Tomita

Harriette Atkins

Brackin L Andrews

Damoder Reddy

Anne Gonzales

Jinlong Cheng

A liquid crystal light composite in which discrete volumes of a liquid crystal material are dispersed in a matrix material is produced by a process in which a reactive additive formulation is added and photopolymerized. The reactive additive formulation includes mono- and multifunctional compounds in specified proportions and a photoinitiator. The reactive additive formulation reduces the operating field and may also improve other electro-optical properties.

Method of making liquid crystal composite

A method is disclosed for making a liquid crystal composite in which droplets of a liquid crystal material are dispersed in a polymer matrix. At least one further material separates the liquid crystal material from the polymer matrix. This construction permits the polymer matrix to be selected on the basis of its environmental properties and the further material to be selected on the basis of its orientational interactions with liquid crystal material. Light valves made from such a composite exhibit improved electro-optical properties.

Liquid crystal composite and method of making

A method is disclosed for making a liquid crystal light valve in which the electro-optically active element is a liquid crystal composite sandwiched between two electrodes. The liquid crystal composite comprises plural volumes of liquid crystal material dispersed in a polymer matrix. By use of a tie layer, the problem of stress clearing is markedly reduced or eliminated. The tie layer material can be either a liquid crystal material or a telomer, crosslinkable or otherwise.

Method of making a liquid crystal light valve

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Palo Alto, CA, United States of America

Kathleen Di Zio