A water-responsive interpenetrating polymer network, a preparation method and use thereof are provided. The water-responsive interpenetrating polymer network comprises an interpenetrating polymer network formed by a cholesteric liquid crystal polymer and a polyionic liquid; wherein the cholesteric liquid crystal polymer is formed by polymerization of a liquid crystal mixture; and the polyionic liquid contains a hydrophilic group or is a hydrophilic salt. The interpenetrating polymer network is water responsive without needs of activation with an alkaline solution, which simplifies the preparation process, and has stable water responsiveness performance after prolonged and/or repeated exposure to water. The water-responsive interpenetrating polymer network can be used to prepare light reflective coatings and reflective devices, and has higher commercial value.

Provided is a polymerizable composition including a quantum dot, a polyfunctional thiol, a first (meth)acrylate, and a second (meth)acrylate, in which the first (meth)acrylate is a polyfunctional (meth)acrylate, the second (meth)acrylate is a mono- or higher functional (meth)acrylate having a functional group selected from the group consisting of a carboxy group, a hydroxy group, a phosphate group, and an amino group, and a molecular weight of the second (meth)acrylate is equal to or less than a molecular weight of the polyfunctional thiol.

Provided is an optical laminate used for a viewing angle control system, and an image display device, including a light absorption anisotropic layer formed of a liquid crystal composition containing a liquid crystal compound and a dichroic substance, a first adjacent layer in contact with one surface of the light absorption anisotropic layer, and a second adjacent layer in contact with a surface of the light absorption anisotropic layer opposite to the one surface, in which a content of the dichroic substance is 7.0% by mass or greater, an angle θs between a transmittance central axis of the light absorption anisotropic layer and a surface of the light absorption anisotropic layer in a normal direction is in a range of 5° to 60°, and both refractive indices n1 and n2 of the first and second adjacent layers, respectively, are in a range of 1.46 to 1.72.

A compound includes, in a molecule, a structure A represented by the following A and a structure B represented by the following B, in which the compound includes two or more of the structures B in the molecule. A: A structure in which at least one or more aromatic ring structures are included and a total number of π electrons of the aromatic ring structure in the molecule is 8 or more. However, an aryl amine structure represented by a predetermined structure is excluded. B: A fluorine-containing terminal structure represented by a predetermined structural formula.

Provided are a liquid crystal composition which has excellent planarity in a case of being formed into a coating film and is also capable of forming a reflective layer having excellent diffuse reflectivity, a reflective layer that is formed using the liquid crystal composition, and a method for producing a reflective layer. Provided also is a copolymer that can be used as an alignment control agent for a liquid crystal compound.

Provided is an optical film capable of neutralizing both the tint as viewed in a transmittance central axis direction and the tint as viewed in a direction inclined from a transmittance central axis, and an optical laminate and an image display device formed of this optical film. The optical film includes a light absorption anisotropic layer in which an angle θ between a transmittance central axis and a normal direction of a layer surface is in a range of 0° to 45°, and a tint adjusting layer containing at least one organic coloring agent compound

Provided is a composition that is capable of forming a polarizer layer having an excellent degree of alignment and excellent adhesiveness to another layer in a case of being applied to a laminate, a polarizer layer, a laminate, and an image display device. The composition of the present invention is a composition including at least a polymer liquid crystal compound, a dichroic material, and a low-molecular-weight liquid crystal compound, in which the polymer liquid crystal compound is a copolymer having a repeating unit (1) represented by Formula (1), the low-molecular-weight liquid crystal compound is a compound represented by Formula (LC), and relationships represented by Expressions |log P(SP1)−log P(SPL1)|≤2.0 (11), |log P(MG1)−log P(SP1)|≥4.5 (12), and |log P(ML)−log P(SPL1)|≥4.0 (13) are satisfied.

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Provided is a low-cost image display apparatus that has asymmetry in the display characteristics in the right-to-left direction, displays a clear image to the driver, exhibits an appropriate viewing angle control function that reduces reflected glare on the window glass, and is thinly made While causing no moire, and there are also provided an information display system for a vehicle, and an optical film. The image display apparatus includes a viewing-side polarizing plate, a liquid crystal cell, a backlight-side polarizing plate, an optical film, and a backlight in this order, in which the optical film includes an optically anisotropic layer and a polarizer in this order from the liquid crystal cell side, the absorption axis of the backlight-side polarizing plate and the absorption axis of the polarizer are parallel or orthogonal to each other, the optically anisotropic layer is optically uniaxially anisotropic, while in a case where the optic axis of the optically anisotropic layer is projected onto the polarizer as viewed from the viewing-side of the image display apparatus, the azimuthal angle of the optic axis is +50° to +70° or −50° to −70° with respect to the horizontal direction, the average tilt angle of the optic axis with respect to the main surface of the optically anisotropic layer is 20° to 45°, and the in-plane phase difference Re (550) of the optically anisotropic layer is 70 nm to 240 nm.

An object of the present invention is to provide a liquid crystal composition capable of forming an optically anisotropic layer with suppressed cissing during formation of an optically anisotropic layer and an excellent alignment degree, a fluorine-containing polymer, an optically anisotropic layer, a laminate, and an image display device. The liquid crystal composition of the present invention is a liquid crystal composition including a liquid crystal compound and an interface improver, in which the interface improver is a fluorine-containing polymer having a repeating unit B1 represented by Formula (B-1) and a repeating unit B2 having a fluorine atom.

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Provided are a decorative film including a base material and a reflective layer having a convex structure, in which, in a cross section obtained by cutting the convex structure in a direction perpendicular to a plane direction of the decorative film, in a case where a direction in which an average Φ.sub.AVE of positive tilt angles is a largest is defined as a first direction and a direction in which the average Φ.sub.AVE of the positive tilt angles is a smallest is defined as a second direction, the decorative film has a region A in which Φ.sub.AVE in the first direction is 3° or more and Φ.sub.AVE in the second direction is less than 3°; and applications thereof.