C09K2219/00

POLYMER DISPERSED LIQUID CRYSTAL FILM FOR VEHICLES AND A VEHICLE INCLUDING THE SAME
20190107744 · 2019-04-11 ·

A polymer dispersed liquid crystal film for vehicles includes an electrode unit, a first electrode provided on the electrode unit, a polymer layer provided between the electrode unit and the first electrode, and a plurality of liquid crystal molecules dispersed in the polymer layer. The electrode unit includes a resin layer and a mesh-type second electrode inserted into the resin layer. The upper surface of the second electrode is exposed to the outside of the resin layer.

COMPOSITION FOR LOW THERMAL EXPANSION MEMBERS, LOW THERMAL EXPANSION MEMBER, ELECTRONIC DEVICE, AND METHOD FOR PRODUCING LOW THERMAL EXPANSION MEMBER

The present invention provides: a composition for low thermal expansion members, which is capable of forming a low thermal expansion member that has a thermal expansion coefficient close to those of the members within a semiconductor element, while having high heat resistance and high heat conductivity; and a low thermal expansion member. A composition for low thermal expansion members according to the present invention is characterized by containing: a heat conductive first inorganic filler that is bonded to one end of a first coupling agent; and a heat conductive second inorganic filler that is bonded to one end of a second coupling agent. This composition for low thermal expansion members is also characterized in that the first inorganic filler and the second inorganic filler are bonded to each other via the first coupling agent and the second coupling agent by means of a curing treatment.

Composition for heat-dissipation members, heat-dissipation member, electronic device, and method of producing heat dissipating member

The present invention relates to a composition capable of forming a heat dissipating member having high thermal conductivity and a heat dissipating member. The composition for a heat dissipating member of the present invention is a composition for a heat dissipating member that includes a first inorganic filler having thermal conductivity that is bonded to one end of a coupling agent; a second inorganic filler having thermal conductivity that is bonded to one end of a coupling agent, in which a bifunctional or higher polymerizable compound is additionally bonded to the other end of the bonded coupling agent; wherein the other end of the coupling agent bonded to the first inorganic filler is to be bonded to the polymerizable compound on the second inorganic filler during curing.

LIQUID-CRYSTALLINE MEDIUM
20190031957 · 2019-01-31 · ·

The invention relates to a liquid-crystalline medium which comprises one or more compounds of the formula BO

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in which the parameters have the meanings indicated in Claim 1, to the use of the liquid-crystalline medium for electro-optical purposes, in particular in liquid-crystal light valves for lighting devices for motor vehicles, and to liquid-crystal light valves which comprise this medium and lighting devices for motor vehicles which contain such liquid-crystal light valves and to compounds of the formula BO.

POWDER MIXTURE

An object of the present invention is to provide a powder mixture containing a polymerizable liquid crystal compound, the powder mixture having a low risk of occurrence of fire due to the flammability of solvent, causing no changes in the appearance due to, for example, precipitation or crystallization of the solute during storage at low temperatures, causing no changes in the composition due to evaporation of solvent during long-term storage or leakage of solvent during long-term storage or transportation, being not viscous and having fluidity unlike nematic liquid crystal compositions, and being easily handled. Another object is to provide a nematic liquid crystal composition, a solution composition, cured products, optical films, and display devices that employ the above-described powder mixture.

DIRECT MAPPING OF LOCAL DIRECTOR FIELD OF NEMATIC LIQUID CRYSTALS AT THE NANOSCALE

The present disclosure is directed to mesogenic compounds having a structure of Formula (I), (II) or (III): where A, B, X1, L, TG, m, and n are defined herein, and compositions containing these compounds, as well as articles made from such polymerized and prepolymerized compositions and methods of estimating the elastic constants and anchoring constants of a liquid crystal materials and mapping topological defect structures in liquid crystals using these compounds.

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Purification device for a liquid-crystal mixture

A purification device (1), for the purification of a liquid-crystal mixture, has a flow chamber (2) which has an inlet opening (3) and an outlet opening (4), arranged opposite the inlet opening, in order to be able to introduce the liquid-crystal mixture into the flow chamber (2) and discharge it from the latter, and at least one flow distribution element (5) which is arranged in the flow chamber (2) in the region of the inlet opening (3), and at least one filter element (6) which is arranged in the region of the outlet opening (4), where a length of the flow chamber (2) measured in the flow direction is at least a factor of 2 greater than a greatest internal dimension of the flow chamber (2) transverse to the flow direction.

VOXELATED LIQUID CRYSTAL ELASTOMERS

A shape-programmable liquid crystal elastomer comprises polymerized, nematic monomers. The monomers are organized into a plurality of voxels with each voxel having a director orientation.

Method of fabricating array of nanoparticle clusters using thermal transformation of sublimable liquid crystal film

The present invention relates to a method for fabricating an array of nanoparticle clusters, in which a thermally transformable organic liquid crystal film having a periodic array of micro-sized dimple-like defect structures spontaneously transformed by thermal sublimation of liquid crystal molecules is used as a template, and nanoparticles form self-assembled clusters having a uniform size with respect to the defect structures, thereby achieving a periodic array of nanoparticle clusters.

PLANAR ALIGNED NANORODS AND LIQUID CRYSTAL ASSEMBLIES

A method is described for preparing a nanorods assembly. The method comprises providing a mixture comprising at least a liquid crystal and nanorods and depositing said mixture on the surface of at least substrate. The method further comprises aligning said nanorods with their long axis of the nanorods along a preferred direction on said substrate resulting in a nanorods and liquid crystal assembly, said aligning being performed by applying an external alternating current electrical field.