Abstract: It is an object of the present invention to provide a projection image-displaying member having excellent suitability for polarizing sunglasses, a windshield glass, and a head-up display system. The projection image-displaying member has a first polarization converting layer, at least one selectively reflecting layer, and a second polarization converting layer in this order. The first polarization converting layer and the second polarization converting layer are layers formed by fixing a helical alignment structure of a liquid crystal compound. The number of pitches in the helical alignment structure and a film thickness satisfy all relational expressions below. When the first polarization converting layer has a number of pitches x1 and a film thickness y1 (unit: ?m), 0.3?x1?2.0 and??(i) y1?1.86x1+0.13.??(ii) When the second polarization converting layer has a number of pitches x2 and a film thickness y2 (unit: ?m), 0.25?x2?2.0,??(iii) y2?1.37x2+5.5, and??(iv) y2?1.37x2+0.25.

Abstract: The present invention provides a functional film including a copolymer that contains a repeating unit represented by Formula (I) and a repeating unit represented by Formula (II) shown in the description, or a crosslinked reaction product derived from the copolymer; a polarizing plate having this functional film; and a display device.

Abstract: Provided are a projection image display member having a high visible light transmittance, suppressing a double image of a display image, and having excellent suitability of polarized sunglasses for incident light reflected from external light, a windshield glass using the projection image display member, and a head-up display system. The problem is solved such that one or more phase difference layers, one or more selective reflection layers, and one or more polarization conversion layers are provided in this order, the polarization conversion layer being a layer in which a helical alignment structure of a liquid crystal compound is fixed, and the number of pitches x of the helical alignment structure and a film thickness y (?m) of the polarization conversion layer satisfying “0.3?x?7.0”, “0.5?y?6.0”, “y?0.7x+3.2”, and “y?0.7x?1.4”.

Abstract: A laminated glass, a method for producing a laminated glass, and a reflective film that has end parts where the generation of wrinkles is prevented in a case where the laminated glass is produced by sandwiching the reflective film between two glass plates and that has a reflection wavelength range with a small variation are provided. The reflective film has wavelength-selective reflectivity. A thermal shrinkage rate in a case where the reflective film is held at 140° C. for 30 minutes is greater than 0.5% and smaller than 2.0%. The reflective film has at least one cutout portion on a side edge of the reflective film.

Abstract: A fluorine-containing copolymer composition includes repeating units derived from a fluorine-containing monomer represented by Formula (I) and from a monomer having at least two polymerizable groups, in which the latter is 3% by mass or more with respect to a total mass of the fluorine-containing copolymer, and the former is 15% by mass or more with respect to a total solid content in the composition, in the Formula (I), R1 represents a hydrogen atom or an alkyl group having 1 to 20 carbon atoms; R2 represents a group having at least one fluorine atom; and L1 represents a divalent linking group including at least one selected from the group consisting of —O—, —(C?O)O—, —O(C?O)—, —(C?O)NH—, —NH(C?O)—, a divalent aromatic group which may have a substituent, a divalent aliphatic chain group which may have a substituent, and a divalent aliphatic cyclic group which may have a substituent.

Abstract: An object of the present invention is to provide a half-mirror film for displaying a projection image having high adhesiveness, a laminated glass in which wrinkle generation of the half-mirror film is suppressed or furthermore has high adhesiveness, and an image display system using the laminated glass. The problem is solved by providing a half-mirror film for displaying a projection image including a transparent support; and a selective reflection layer reflecting light in a wavelength selective manner, in which the transparent support has an absolute value of 10 nm or less of an in-plane phase difference at a wavelength of 550 nm and a heat seal layer disposed on an opposite surface of a surface having the selective reflection layer, the heat seal layer contains a thermoplastic resin, and a mixed layer in which components of the transparent support and the heat seal layer are mixed is formed between the transparent support and the heat seal layer.

Abstract: Objects are to provide a projection-image-displaying laminate film that enables, when used for, for example, a HUD, displaying of undistorted projection images of high-quality screen images, a laminated glass using the projection-image-displaying laminate film, and an image display system using the laminated glass. The objects are achieved with a projection-image-displaying laminate film including a half-mirror film including a selective reflection layer configured to wavelength-selectively reflect light, and a heat-sealing layer disposed on one surface of the half-mirror film, wherein the half-mirror film has a stiffness at 25° C. of 4.0 N·mm or less, and the heat-sealing layer has a thickness of 40 ?m or less, contains a thermoplastic resin, and has a surface opposite from the half-mirror film, the surface having a static coefficient of friction of 1.0 or less.

Abstract: It is an object of the present invention to provide a projection image-displaying member having excellent suitability for polarizing sunglasses, a windshield glass, and a head-up display system. The projection image-displaying member has a first polarization converting layer, at least one selectively reflecting layer, and a second polarization converting layer in this order. The first polarization converting layer and the second polarization converting layer are layers formed by fixing a helical alignment structure of a liquid crystal compound. The number of pitches in the helical alignment structure and a film thickness satisfy all relational expressions below. When the first polarization converting layer has a number of pitches x1 and a film thickness y1 (unit: ?m), 0.3?x1?2.0 and??(i) y1?1.86x1+0.13.??(ii) When the second polarization converting layer has a number of pitches x2 and a film thickness y2 (unit: ?m), 0.25?x2?2.0,??(iii) y2?1.37x2+5.5, and??(iv) y2?1.37x2+0.25.

Abstract: Provided are a projection image display member having a high visible light transmittance, suppressing a double image of a display image, and having excellent suitability of polarized sunglasses for incident light reflected from external light, a windshield glass using the projection image display member, and a head-up display system. The problem is solved such that one or more phase difference layers, one or more selective reflection layers, and one or more polarization conversion layers are provided in this order, the polarization conversion layer being a layer in which a helical alignment structure of a liquid crystal compound is fixed, and the number of pitches x of the helical alignment structure and a film thickness y (?m) of the polarization conversion layer satisfying “0.3?x?7.0”, “0.5?y?6.0”, “y?0.7x+3.2”, and “y?0.7x?1.4”.

Abstract: A copolymer includes a repeating unit represented by Formula (I); and a repeating unit represented by Formula (II), in Formula (I), R1 represents a hydrogen atom or an alkyl group having 1 to 20 carbon atoms; R2 represents an alkyl group having 1 to 20 carbon atoms and having at least one fluorine atom as a substituent, or a group including —Si(Ra3)(Ra4)O—; L represents a divalent linking group as defined herein; and Ra3 and Ra4 each independently represent an alkyl group as defined herein, in Formula (II), R10 represents a hydrogen atom or an alkyl group having 1 to 20 carbon atoms; R11 and R12 each independently represent a hydrogen atom, a substituted or unsubstituted aliphatic hydrocarbon group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group; R11 and R12 may be linked to each other; and X1 represents a divalent linking group.

Abstract: The present invention provides a functional film including a copolymer that contains a repeating unit represented by Formula (I) and a repeating unit represented by Formula (II) shown in the description, or a crosslinked reaction product derived from the copolymer; a polarizing plate having this functional film; and a display device.

Abstract: The present invention provides a functional film including a copolymer that contains a repeating unit represented by Formula (I) and a repeating unit represented by Formula (II) shown in the description, or a crosslinked reaction product derived from the copolymer; a polarizing plate having this functional film; and a display device.

Abstract: There are provided a screen image-displaying laminated glass that reduces the distortion of a projected display image, a method for producing the screen image-displaying laminated glass, and a screen image display system including the screen image-displaying laminated glass. The screen image-displaying laminated glass has a half-mirror film that has a transparent support and that has a selectively reflecting layer which wavelength-selectively reflects light, a first glass plate disposed on one surface of the half-mirror film, and a second glass plate disposed on the other surface of the half-mirror film. The longitudinal directions of bright and dark lines observed by a magic mirror method match each other at the first glass plate, the second glass plate, and the transparent support.

Abstract: An object of the present invention is to provide a half-mirror film for displaying a projection image having high adhesiveness, a laminated glass in which wrinkle generation of the half-mirror film is suppressed or furthermore has high adhesiveness, and an image display system using the laminated glass. The problem is solved by providing a half-mirror film for displaying a projection image including a transparent support; and a selective reflection layer reflecting light in a wavelength selective manner, in which the transparent support has an absolute value of 10 nm or less of an in-plane phase difference at a wavelength of 550 nm and a heat seal layer disposed on an opposite surface of a surface having the selective reflection layer, the heat seal layer contains a thermoplastic resin, and a mixed layer in which components of the transparent support and the heat seal layer are mixed is formed between the transparent support and the heat seal layer.

Abstract: According to the present invention, there are provided a film forming composition, which contains a polymer having a repeating unit represented by General Formula (I) and a curable compound, an optical film having a film formed of the composition, a hardcoat film, a polarizing plate, and a method for manufacturing a hydrophilized hardcoat film. In General Formula (I), R1 represents a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, L represents an ester bond, an ether bond, a phenylene group, or an amide bond, R2 and R4 each independently represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 20 carbon atoms, or a halogenated alkyl group having 1 to 20 carbon atoms, and R3 represents a hydrogen atom or a substituent.

Abstract: A fluorine-containing copolymer composition includes repeating units derived from a fluorine-containing monomer represented by Formula (I) and from a monomer having at least two polymerizable groups, in which the latter is 3% by mass or more with respect to a total mass of the fluorine-containing copolymer, and the former is 15% by mass or more with respect to a total solid content in the composition, in the Formula (I), R1 represents a hydrogen atom or an alkyl group having 1 to 20 carbon atoms; R2 represents a group having at least one fluorine atom; and L1 represents a divalent linking group including at least one selected from the group consisting of —O—, —(C?O)O—, —O(C?O)—, —(C?O)NH—, —NH(C?O)—, a divalent aromatic group which may have a substituent, a divalent aliphatic chain group which may have a substituent, and a divalent aliphatic cyclic group which may have a substituent.

Abstract: The present invention provides a functional film including a copolymer that contains a repeating unit represented by Formula (I) and a repeating unit represented by Formula (II) shown in the description, or a crosslinked reaction product derived from the copolymer; a polarizing plate having this functional film; and a display device.

Abstract: A copolymer includes a repeating unit represented by Formula (I); and a repeating unit represented by Formula (II), in Formula (I), R1 represents a hydrogen atom or an alkyl group having 1 to 20 carbon atoms; R2 represents an alkyl group having 1 to 20 carbon atoms and having at least one fluorine atom as a substituent, or a group including —Si(Ra3)(Ra4)O—; L represents a divalent linking group as defined herein; and Ra3 and Ra4 each independently represent an alkyl group as defined herein, in Formula (II), R10 represents a hydrogen atom or an alkyl group having 1 to 20 carbon atoms; R11 and R12 each independently represent a hydrogen atom, a substituted or unsubstituted aliphatic hydrocarbon group, a substituted or unsubstituted aryl group, or a substituted or unsubstituted heteroaryl group; R11 and R12 may be linked to each other; and X1 represents a divalent linking group.

Abstract: The invention is directed to a method for manufacturing a hardcoat film including a hardcoat layer having a surface of which a water contact angle is 65° or less by applying, drying, and curing a composition for forming the hardcoat layer on a base material film, in which the composition for forming the hardcoat layer contains the components (a) to (d) as defined herein, and, in a case in which a total solid content of the composition for forming the hardcoat layer is set to 100% by mass, a content of the component (b) is 40% to 80% by mass, a content of the component (c) is 10% to 40% by mass, and a content of the component (d) is 10% to 40% by mass.

Abstract: According to the present invention, there are provided a film forming composition, which contains a polymer having a repeating unit represented by General Formula (I) and a curable compound, an optical film having a film formed of the composition, a hardcoat film, a polarizing plate, and a method for manufacturing a hydrophilized hardcoat film. In General Formula (I), R1 represents a hydrogen atom or an alkyl group having 1 to 20 carbon atoms, L represents an ester bond, an ether bond, a phenylene group, or an amide bond, R2 and R4 each independently represent a hydrogen atom, a halogen atom, an alkyl group having 1 to 20 carbon atoms, or a halogenated alkyl group having 1 to 20 carbon atoms, and R3 represents a hydrogen atom or a substituent.