Biaxial liquid crystal electro-optic devices
AssigneeKent State University
InventorSatyendra Kumar
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Abstract
An electro-optical device including a biaxial liquid crystal having a primary and secondary director is provided. A change in orientation of at least one of the directors due to an applied electric field produces a change in the optical state of the device. Response times are increased dramatically over uniaxial nematic based liquid crystal devices, offering improved performance and efficiency.
Claims22
An electro-optical device comprising first and second substrates, each of said first and second substrates coated with an alignment layer, and a liquid crystal material positioned between said substrates, said liquid crystal material comprising a biaxial nematic liquid crystal having a first principal director n and a secondary director m, wherein a change in the optical properties of said device are effected by reorienting at least one of said m and n.
A biaxial retardation film comprising first and second transparent electrodes, and a liquid crystal material positioned between said electrodes, said liquid crystal material comprising a biaxial nematic liquid crystal having a first principal director n and a secondary director m, wherein n and m are perpendicular to each other and parallel to said electrodes at an applied electric field of zero.
A method of forming an electro-optical device comprising depositing a liquid crystal material between first and second substrates, each of said first and second substrates coated with an alignment layer, said liquid crystal material comprising a biaxial nematic liquid crystal having a first principal director n and a secondary director m, wherein a change in the optical properties of said device are effected by reorienting at least one of said m and n.
Dependencies are inferred from the claim text.