- PHOTOALIGNING MATERIALS
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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).
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Page/Page column 79
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- PHOTOALIGNING MATERIALS
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The present invention relates to polymer, homo- or copolymer or oligomer, which, when irradiated with polarised light orients perpendicular to the polarization direction of polarized actinic light, for the photoalignment of liquid crystals, especially for the planar orientation of liquid crystals, and which derives from at least one monomer (I), compositions thereof, and its use for optical and electro optical devices, such as, liquid crystal devices (LCDs), especially for planar orientation of liquid crystals.
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Page/Page column 95
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- Compound
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The present invention provides a compound comprising a repeating unit of formula (I) ???in which:Arepresents a nitrogen atom, a carbon atom, a group -CR1- or an aromatic or alicyclic group, wherein R1 represents a hydrogen atom or lower alkyl,Mrepresents a repeating monomer unit;n1 to n3each independently represent 0 or an integer having a value of from 1 to 3, with the proviso that 1 1 + n2 + n3 1, P2, P3each independently represent a photoactive group; andB1 to B4each independently represent a residue of general formula II as well as photoactive polymers prepared from such compounds and the use of such compounds in the preparation of liquid crystal orientation layers and structured and unstructured electro-optical elements.
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- Photoactive silane derivatives for liquid crystals
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The invention provides novel cross-linkable, photoactive silane derivatives and mixtures with 3-aryl-acrylic acid esters and amides. The present invention also provides orienting layers for liquid crystals, and non-structured and structured optical elements and multi-layer systems based on the silane mixtures and derivatives.
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