Abstract:
The present invention relates to polymer, homo- or copolymer or oligomer for the photoalignment of liquid crystals, especially for the planar orientation of liquid crystals, comprising a main chain and a side chain, wherein the side chain and/or main chain comprises a polar group, compositions thereof, and its use for optical and electro optical devices, especially liquid crystal devices (LCDs).
Abstract:
Interactions between molecules which are components of self-assembled monolayers and other molecules can be amplified and transduced into an optical signal through the use of a mesogenic layer. The invention provides a device and methods for detecting analytes. The device comprises a substrate onto which a self-assembled monolayer is attached and a mesogenic layer which is anchored by the self-assembled monolayer. The mesogenic layer undergoes a change in conformation in response to the molecular interaction.
Abstract:
A process for producing at a high efficiency a monomolecular chemisorption film excellent in uniformity and molecular orientation and usable as a liquid crystal alignment film. This process comprises at least the step of bringing an adsorbate solution comprising a silane surfactant and a non-aqueous organic solvent into contact with the surface of a substrate in a dry atmosphere to form a solution layer from the adsorbate solution on the surface, the step of concentration and accelerated reaction of conducting chemisorption while evaporating the organic solvent contained in the solution layer, the aging step of continuing the chemical reaction until the lapse of a predetermined time after the completion of the evaporation, and the washing step of washing out unadsorbed surfactant remaining on the surface with a non-aqueous organic solvent.
Abstract:
A chemisorptive substance comprising a novel compound which is capable of being evenly and tenaciously fixed to a substrate to form a transparent film having a very small thickness on the order of nanometer and being capable of having highly thermally stable alignment characteristics, and which has either a chemical structure containing a group represented by -CR =CR -CO- (wherein R and R each represents hydrogen, C1-3 alkyl, or C1-3 alkoxy) and a silicon-containing functional group or a linear structure containing a group represented by -CC-CC- and a group represented by -SiX (wherein X is halogeno); and an aligned liquid-crystal film and a liquid-crystal display element both being made by using the chemisorptive substance, having the desired alignment, and being excellent in the ability to control the alignment of liquid-crystal molecules and in thermal stability.
Abstract:
A surface for the alignment of liquid crystals containing directionally-linked groups and compounds useful for preparing such surfaces are disclosed.
Abstract:
Ink-jet printable compositions including nanoparticles capped with a protective layer of hydrocarbon chains and a single solvent exhibiting a single evaporation rate and having a specifically defined viscosity and surface tension that result in uniform and printable alignment layers for liquid crystal materials. Patterned liquid crystal-containing cells are also disclosed including one or more layers including the same or different nanoparticles capped with a protective layer of hydrocarbon chains printed on a surface of a substrate or even another nanoparticle-containing layer. Methods for producing the cells are also disclosed, including the step of printing a pattern on one or more portions of a cell surface utilizing a composition comprising the capped nanoparticles. Devices including the cells are also disclosed.