Raychem Limited

John R Havens

Robert H Reamey

Harriette Atkins

Aldrich N Lau

Mark F Wartenberg

Paul S Drzaic

Akira Tomita

Laurence M Welsh

Wayne Montoya

Janusz Wojtowicz

Anne Gonzales

James Strain

Kathleen Di Zio

Kathleen DiZio

Jinlong Cheng

Philip J Jones

Lanchi P Vo

Brackin L Andrews

Frank Wasilewski

Damoder Reddy

Kevin Malloy

Binh Vu Cao

John Mazzanti

Gil Garza

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

An encapsulated liquid crystal layer is patterned by placing a mask into contact with a coated substrate. The mask is held against the substrate, for example, by a vacuum, to form a seal. The assembly is submerged in a solvent to dissolve the exposed region of the encapsulated liquid crystal material.

Method and apparatus for patterning encapsulated liquid crystal layers

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 colored reflective liquid crystal display employs a liquid crystal light valve switchable between a light scattering and a transmissive state. Positioned on the non-viewing side of the light valve is a reflector which reflects light of selected wavelengths and transmits the other wavelengths.

Colored liquid crystal display having a reflector which reflects

Method of making liquid crystal composite which has interfacial material

A liquid crystal display is made from an encapsulated liquid crystal structure comprising a liquid crystal composition dispersed in a containment medium. Selected additives may be added to the encapsulated liquid crystal structure to improve performance characteristics such as the operating field, the hysteresis, and the voltage holding ratio.

Encapsulated liquid crystal structures, apparatus containing the same,

A method is described for making a liquid crystal composite in which droplets of a liquid crystal material dispersed in a matrix material. An encapsulating material at least partially separates the liquid crystal material from the matrix material. This construction permits the matrix material to be selected on the basis of its processing and environmental properties and the encapsulating material to be selected on the basis of its emulsifying ability and orientational interactions with liquid crystal material. Light valves made from such a composite exhibit improved electro-optical properties.

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Menlo Park, CA, United States of America

John R Havens