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: There are provided a reflection film, a windshield glass, and a head-up display system capable of suppressing formation of double images of a display image. The reflection film has a linearly polarized light reflection layer in which optically anisotropic layers and isotropic layers are laminated and a polarization converting layer, and the polarization converting layer satisfies any of conditions below. (A) The polarization converting layer is a retardation layer in which the front retardation is 30 nm to 200 nm and the angle between a slow axis direction and a direction of the transmission axis of the linearly polarized light reflection layer is 35° or less. (B) The polarization converting layer is a layer in which a helical alignment structure of a liquid crystal compound is fixed, and the number of pitches x in the helical alignment structure and the film thickness y (unit ?m) of the polarization converting layer satisfy all relational expressions below. 0.1?x?1.0??(i) 0.5?y?3.

Abstract: Provided are a reflection film, which enables high visible light transmittance, an increase in the brightness of a display image, and favorable transparency of an external tint, a windshield glass, and a head-up display system. The reflection film includes a selective reflection layer formed of a cholesteric liquid crystal layer with a cholesteric liquid crystalline phase immobilized. In each of a wavelength range of 400 nm or more and less than 500 nm and a wavelength range of 500 nm or more and less than 600 nm, a maximum value of a natural light reflectivity is 10% to 25%, the greatest difference between the greatest maximum value and the smallest minimum value of the natural light reflectivity is 3% or more, and a total value of wavelength bandwidths in a region where a reflectivity is higher than an average value of the maximum value and the minimum value of the natural light reflectivity is 20 nm to 80 nm.

Abstract: Provided are a reflection film that can display videos in a case of being applied in a head-up display, and that can also compatible with various types of authentication such as face authentication and iris authentication performed with various infrared light sources, a windshield glass, and a head-up display system. The reflection film includes a visible light selective reflection layer and an infrared light selective reflection layer. The visible light selective reflection layer has at least one reflection peak in a range of 380 nm to 850 nm, and has a natural light reflectivity of 5% to 25% at a wavelength of the reflection peak. The infrared light selective reflection layer satisfies requirement 1 or requirement 2. Requirement 1: two or more reflection peaks are provided in a range of 900 nm to 1200 nm, and a natural light reflectivity each of the reflection peaks is 26% or more.

Abstract: There are provided a linearly polarized light reflection film that has a high visible light transmittance, is capable of increasing the brightness of a display image, and is highly transparent in terms of appearance tint, a windshield glass, and a head-up display system. The linearly polarized light reflection film has a selectively reflecting layer in which an optically anisotropic layer and an isotropic layer are laminated.

Abstract: There are provided a reflection film, a windshield glass, and a head-up display system capable of suppressing formation of double images of a display image. The reflection film has a linearly polarized light reflection layer in which optically anisotropic layers and isotropic layers are laminated and a polarization converting layer, and the polarization converting layer satisfies any of conditions below. (A) The polarization converting layer is a retardation layer in which the front retardation is 30 nm to 200 nm and the angle between a slow axis direction and a direction of the transmission axis of the linearly polarized light reflection layer is 35° or less. (B) The polarization converting layer is a layer in which a helical alignment structure of a liquid crystal compound is fixed, and the number of pitches x in the helical alignment structure and the film thickness y (unit µm) of the polarization converting layer satisfy all relational expressions below. 0.1 ? x ? 1 .0 0.5 ? y ? 3 .

Abstract: An object is to provide a head-up display projector that uses a reflection member having a selective reflection layer and that can suppress the decrease in brightness of a projection image and the loss of color balance of a projection image even when the wavelength of a light beam has varied. The object is achieved by having: a light source for forming a projection image; and a reflection member having a selective reflection layer that reflects visible light and is constituted by two or more layers having selective reflection center wavelengths different from each other and an interference suppression layer that has a thickness of 10 ?m or more, wherein in the reflection member, the interference suppression layer is located closer to the side on which light from the light source is incident than the selective reflection layer is.

Abstract: An object is to provide a projection image displaying member that enables display of a projection image using p-polarized light and can provide a head-up display system having high polarizing sunglasses suitability, a windshield, and a head-up display system. The object is achieved by a projection image displaying member having a transparent substrate having an in-plane retardation of 5000 nm or more and at least one selective reflection layer, wherein the selective reflection layer is located closer to the side on which projection light is incident than the transparent substrate is.

Abstract: There are provided a projection image-displaying member, a windshield glass, and a head-up display system in which both high visible light transmittance and good tint of a screen image displayed are achieved. The projection image-displaying member has a selectively reflecting layer that wavelength-selectively reflects light. The selectively reflecting layer has a maximum reflectivity in a wavelength range of 700 to 850 nm at an incidence angle of 5° and has a peak with a reflectivity of 15% or more in a wavelength range of 470 to 540 nm. The selectively reflecting layer further has two or more peaks of reflectivity in a wavelength range of 540 to 700 nm.

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 vehicle mirror having an image display function includes an image display device, a circularly polarized light reflection layer, and a front plate formed of glass or plastic in this order. The circularly polarized light reflection layer includes a linearly polarized light reflection plate and a 1/4 wavelength plate from a side of the image display device. The linearly polarized light reflection plate and the 1/4 wavelength plate are directly in contact with each other, or only an alignment layer is included between the linearly polarized light reflection plate and the 1/4 wavelength plate. A method for producing the vehicle mirror includes forming the 1/4 wavelength plate from a composition that is directly applied to the surface of the linearly polarized light reflection plate or that is directly applied to the surface of the alignment layer directly in contact with the linearly polarized light reflection plate.

Abstract: A polymerizable composition includes a polymerizable liquid crystal compound of Formula (I) and a urethane (meth)acrylate monomer including a urethane bond and three or more (meth)acryloyl groups: Q1-Sp1A-Lm-1A-Sp2-Q2??(I) In Formula (I), A represents a cyclic divalent group (at least one is a divalent saturated hydrocarbon ring group), L preferably represents —C(?O)O— or —OC(?O)—, m represents 3 to 12, Sp1 and Sp2 preferably are alkylene, and any one of Q1 and Q2 represents a polymerizable group. A film including a layer obtained by curing the polymerizable composition; and a film adjacently including a layer obtained by curing the polymerizable composition including a polymerizable liquid crystal compound represented by Formula (I) and a layer obtained by curing a composition including a urethane (meth)acrylate monomer and a manufacturing method thereof, are also disclosed.

Abstract: There are provided a projection image-displaying member, a windshield glass, and a head-up display system in which both high visible light transmittance and good tint of a screen image displayed are achieved. The projection image-displaying member has a selectively reflecting layer that wavelength-selectively reflects light. The selectively reflecting layer has a maximum reflectivity in a wavelength range of 700 to 850 nm at an incidence angle of 5° and has a peak with a reflectivity of 15% or more in a wavelength range of 470 to 540 nm. The selectively reflecting layer further has two or more peaks of reflectivity in a wavelength range of 540 to 700 nm.

Abstract: According to the invention, there are provided a vehicle minor with an image display function including: an image display device; and a half mirror, in which the half minor includes a reflection layer, and the reflection layer is inclined with respect to a surface of an image display portion of the image display device, and a method of manufacturing a vehicle mirror with an image display function including: positioning a half minor including a reflection layer on a surface of an image display portion of an image display device such that the half mirror is inclined with respect to the surface of the image display portion. In a vehicle minor with an image display function according to the invention, image visibility is hardly reduced by outside light.

Abstract: The present invention provides a polymerizable composition containing a polymerizable liquid crystal compound represented by Formula (I) and an oxime compound, in the formula, A1 and A2 each represent a phenylene group or a trans-1,4-cyclohexylene group, L1 and L2 each represent single bond, —C(?O)O—, or —OC(?O)—, Q1 and Q2 each represent a polymerizable group or the like, m and n represent an integer of 0 to 2, X may represent —X3-Sp3-Q3 or two X's may be bonded to each other to form a fused ring, X3 represents —C(?O)O—, Sp1, Sp2, and Sp3 each represent single bond, an alkylene group, or the like, Q3 represents hydrogen atom, a cycloalkyl group, a polymerizable group, or the like, and l represents an integer of 0 to 4. The polymerizable composition hardly causes yellowing after curing and is useful for manufacturing a film and a half mirror for displaying a projection image.

Abstract: A transfer sheet includes a cured liquid crystal composition layer, a block layer including a (meth)acrylic polymer, and a thermoplastic welded layer in this order, the thermoplastic welded layer and the block layer are in direct contact with each other, and the thermoplastic welded layer includes a thermoplastic resin and an ultraviolet curable resin.

Abstract: The present invention provides a member for displaying a projected image and a projected image display system in which a clear image can be displayed with high reflectivity and high transmittance without a double image, the member for displaying a projected image including a reflection layer, and a ?/2 phase difference layer, in which the reflection layer includes a cholesteric liquid crystal layer having selective reflection in a visible light range, and the projected image display system including the member for displaying a projected image, in which the ?/2 phase difference layer is disposed on an incidence ray side with respect to the reflection layer, and the incidence ray is p-polarized light which vibrates in a direction parallel to an incidence surface.

Abstract: A vehicle mirror with an image display function includes a half mirror which includes a high-Re retardation film and a reflection layer and an image display device on the half mirror, in which the high-Re retardation film, the reflection layer, and the image display device are disposed in this order, the high-Re retardation film has a front phase difference of 5000 nm or greater, and the reflection layer is a linear polarization reflection layer or a circular polarization reflection layer.