摘要:
The invention relates to an alignment layer comprising a polymerized liquid crystal material with homeotrophic orientation, to methods of its preparation, to polymerizable liquid crystal compositions and liquid crystal polymers used for the preparation of the alignment layer, to liquid crystal devices comprising the alignment layer, and to a method of controlling the electrooptical steepness of a liquid crystal display comprising at least one alignment layer by varying the surface anchoring energy of the alignment layer.
摘要:
The invention relates to an optical compensator for liquid crystal displays comprising at least one O plate retarder, and at least one twisted A plate retarder with a twist angle φ of more than 90°, and further relates to a liquid crystal display comprising such a compensator.
摘要:
The invention that relates to an optical compensator for liquid crystal displays comprising: at least one O plate retarder; at least one planar A plate reader; at least one negative C plate retarder; and further relates to a liquid crystal display comprising such a compensator.
摘要:
An achromatic quarter wave film (AQWF) comprising at least one quarter wave film (QWF) and at least one half wave film (HWF), each of said QWF and HWF comprising polymerized or vitrified anisotropic material, to methods and materials for the preparation of the AQWF, its use in optical devices like compensators and liquid crystal displays, and to a liquid crystal display comprising such an AQWF.
摘要:
The invention relates to a broadband reflective polarizer that comprises a layer of a polymerized mesogenic material exhibiting a helically twisted molecular structure with planar alignment, said reflective polarizer being obtainable by a process wherein a mixture of a chiral polymerizable mesogenic material comprisinga) at least one achiral polymerizable mesogenic compound,b) at least one chiral compound that can in addition be polymerizable and/or mesogenic,c) a polymerization initiator,is coated on a substrate or between two substrates in form of a layer, aligned in a planar orientation so that the axis of the molecular helix extends transversely to the layer, and polymerized by exposure to heat or actinic radiation, and optionally the substrates are removed from the polymerized material, characterized in that said polymerizable material is coated and polymerized between two different substrates, and/or at least one of said substrates comprises a barrier layer on the surface adjacent to the layer of said polymerizable material, to a process of preparing such a broadband reflective polarizer and to a liquid crystal display comprising such a broadband reflective polarizer
摘要:
The invention relates to a combination of optical films comprising a twisted A-plate retarder and a polarizer, its use in displays and optical elements, and to displays comprising such a combination.
摘要:
The invention relates to a liquid-crystalline medium containing one or more compounds of the formula I and one or more compounds selected from the group of the compounds of the formula IA to IE in which R0, R1, R2, X1, X2, A1, Z1, m, p, q, v have the meanings indicated in claim 1, and to the use thereof in electro-optical liquid-crystal displays.
摘要:
The invention relates to a compensated liquid crystal display (LCD) of the In Plane Switching (IPS) mode and to a compensator for use in an IPS-LCD.
摘要:
The invention relates to an alignment layer comprising a polymerized liquid crystal material with homeotrophic orientation, to methods of its preparation, to polymerizable liquid crystal compositions and liquid crystal polymers used for the preparation of the alignment layer, to liquid crystal devices comprising the alignment layer, and to a method of controlling the electrooptical steepness of a liquid crystal display comprising at least one alignment layer by varying the surface anchoring energy of the alignment layer.
摘要:
The invention relates to a polymeric composite material which:is based on a liquid crystal polymer component,exhibits a high glass transition temperature of at least 60.degree. C. and a scattering texture when deposited as a thin film,can be rendered transparent by being heated above the glass transition temperature and/or clearing temperature, andis obtained by mixing a liquid crystal polymer component, a reactive liquid crystalline component, optionally a polymerization initiator component, and/or further additive components, with subsequent polymerization.