Abstract: The wavelength conversion laminated film includes a laminate which has a wavelength conversion layer containing a phosphor and a gas barrier layer laminated on both the main surfaces of the wavelength conversion layer and an end face sealing layer which covers at least end faces of the wavelength conversion layer among end faces of the laminate, in which the end face sealing layer includes, from the side of the end faces of the laminate, a first metal layer coming into contact with the end faces, a resin layer, and a second metal layer in this order.

Abstract: Provided is a wavelength conversion film that suppresses a deterioration of quantum dots by oxygen and is capable of suppressing a decrease in brightness. The wavelength conversion film includes a wavelength conversion layer and auxiliary layers sandwiching the wavelength conversion layer, in which the wavelength conversion layer has polyvinyl alcohol and cured substance particles of a (meth)acrylate compound including wavelength conversion particles, and an oxygen permeability of the auxiliary layer is 1.0×100 to 1.0×10?2 cc/(m2·day·atm).

Abstract: Provided is a wavelength conversion film that suppresses the deterioration of quantum dots by oxygen and is capable of suppressing a decrease in brightness. The wavelength conversion film has a wavelength conversion layer and a base material that supports the wavelength conversion layer, the wavelength conversion layer has a binder and cured substance particles of a (meth)acrylate compound including wavelength conversion particles, and, in the wavelength conversion layer, 90% or more of the cured substance particles of the (meth)acrylate compound are present in a region 5 ?m or more apart from main surfaces in a thickness direction.

Abstract: An object is to provide: a wavelength conversion film in which deterioration of wavelength conversion particles caused by oxygen can be prevented and optical characteristics are also excellent; and a method of manufacturing the wavelength conversion film. The object is achieved with the wavelength conversion film including: a wavelength conversion layer; and a substrate that supports the wavelength conversion layer, in which the wavelength conversion layer includes a polyvinyl alcohol having a saponification degree in a range of 86 to 97 mol % and cured product particles of a (meth)acrylate compound including wavelength conversion particles.

Abstract: An object is to provide: a thin wavelength conversion film in which a phosphor can be uniformly dispersed and deterioration of the phosphor caused by oxygen can also be prevented; and a backlight unit including the wavelength conversion film. The object is achieved with the wavelength conversion film including a wavelength conversion layer and a substrate, in which the wavelength conversion layer includes a binder and particles including a phosphor, an oxygen permeability coefficient of the binder is 0.01 (cc·mm)/(m2·day·atm) or lower, an oxygen permeability coefficient of the matrix is 10 to 1000 (cc·mm)/(m2·day·atm), and a content of the particles in the wavelength conversion layer is 0.01 to 5 mass %.

Abstract: Provided is a backlight film that is used for a liquid crystal display or the like, uses a wavelength conversion film, has satisfactory durability, and enables light without color unevenness to be emitted from the backlight unit. The problem is solved by including a wavelength conversion film having a wavelength conversion layer and gas barrier films that sandwich the wavelength conversion layer; and a plurality of reflective layers provided on one main surface of the wavelength conversion film, and causing area unevenness of the reflective layer to be ±5% or less.

Abstract: An object of the present invention is to provide a backlight film that uses a wavelength conversion film used for a liquid crystal display or the like, has satisfactory durability, and is able to emit light without color unevenness. The object is achieved by including a wavelength conversion film having a wavelength conversion layer and a gas barrier film that sandwich the wavelength conversion layer; and at least one reflective layer provided on one main surface of the wavelength conversion film and causing a film thickness distribution of the reflective layer to be ±5% or less.

Abstract: A laminated film includes a functional layer laminate having a wavelength conversion layer, such as a quantum dot layer, and a gas barrier film laminated on both main surfaces and sandwiching the wavelength conversion layer, and an end face sealing layer covering a region from a portion of one main surface of the functional layer laminate to a portion of the other main surface including the entirety of end face of the functional layer laminate, in which the end face sealing layer has a build-up portion formed on the main surface of the functional layer laminate, and a width of the build-up portion measured from the end face is equal to or greater than 0.01 mm and equal to or smaller than 8% of a length of the main surface.

Abstract: The wavelength conversion laminated film includes a laminate which has a wavelength conversion layer containing a phosphor and a gas barrier layer laminated on both the main surfaces of the wavelength conversion layer and an end face sealing layer which covers at least end faces of the wavelength conversion layer among end faces of the laminate, in which the end face sealing layer includes, from the side of the end faces of the laminate, a first metal layer coming into contact with the end faces, a resin layer, and a second metal layer in this order.

Abstract: A laminated film has an optically functional layer including a quantum dot layer, performing an optical function, which can be prevented from deteriorating due to the permeation of oxygen or the like from an end face. The laminated film includes a functional layer laminate having an optically functional layer and a gas barrier layer laminated on at least one main surface of the optically functional layer and an end face sealing layer formed by covering at least some of end faces of the functional layer laminate, the end face sealing layer has an end face resin layer and a metal layer in this order from the end face side of the functional layer laminate, and the metal layer covers the entirety of the end face resin layer except for a surface of the end face resin layer coming into contact with the end faces of the functional layer laminate.

Abstract: Provided are a method and an apparatus for producing a functional film with a coating solution including a material whose performance is deteriorated by oxygen, without performance deterioration. The method for producing a functional film includes a coating step of supplying a coating solution having a dissolved oxygen concentration of 1000 ppm or less to a die coater having a backup roller and applying the coating solution to a flexible support transported in a state where the support is wound around the backup roller by the die coater, in which a reduced pressure chamber which covers a surface of the flexible support is provided on an upstream side of the die coater in a transport direction of the flexible support, and an inert gas is supplied to the reduced pressure chamber and an exhaust amount from the reduced pressure chamber is larger than a supply amount of the inert gas.

Abstract: Provided are a method and an apparatus for producing a film with a coating solution including a material whose performance is deteriorated by oxygen functional film, without performance deterioration. The apparatus for producing a functional film includes a coating device which has a backup roller and a die coater and applies a coating solution having a dissolved oxygen concentration of 1000 ppm or less and including 10000 ppm or less of an organic solvent to a flexible support transported in a state where the support is wound around the backup roller to form a coated film, a lamination device which laminates a coated surface of the coated film and the film on the backup roller, and an inert gas atmosphere forming device which forms an inert gas atmosphere in a space including the coated surface from a coating start position to a lamination start position on the backup roller.

Abstract: An object of the present invention is to provide a laminated film including a functional layer such as a quantum dot layer and having an appropriate shape, in which a member such as a quantum dot performing a function can be prevented from deteriorating due to the permeation of oxygen or the like from an end face. The object is achieved by a laminated film including a functional layer laminate having a functional layer and a gas barrier layer laminated on the functional layer and an end face sealing layer covering at least some of end faces of the functional layer laminate, in which the planar shape of the functional layer laminate is a shape in which the corners of a polygon are cut out, or the end faces of the functional layer laminate have a tapered shape.

Abstract: Provided are a highly flat laminated film having an optically functional layer such as a quantum dot layer, in which a member such as a quantum dot performing an optical function can be prevented from deteriorating due to the permeation of oxygen or the like from an end face, and a method for manufacturing a laminated film. The laminated film includes a functional layer laminate having an optically functional layer and a gas barrier layer laminated on at least one main surface of the optically functional layer and an end face sealing layer formed by covering at least a portion of the end face of the functional layer laminate, and the end face sealing layer has an oxygen permeability of equal to or lower than 10 cc/(m2·day·atm).

Abstract: The present invention provides a functional film having an optical functional layer that exhibits an optical function and is capable of suppressing deterioration of the optical functional layer, and a method thereof. The functional film includes an optical functional layer, a resin layer which surrounds end surfaces of the optical functional layer, and gas barrier supports between which the optical functional layer and the resin layer are sandwiched, in which an oxygen permeability of the resin layer is 10 cc/(m2·day·atm) or less, and a difference between a thickness of the optical functional layer and the resin layer is within 30%; and a production method including forming a frame-shaped resin layer on a surface of a first gas barrier support, filling the inside of the frame with a polymerizable composition which becomes an optical functional layer, laminating a second gas barrier support on the resin layer, and curing the polymerizable composition.

Abstract: Provided is manufacturing method of a quantum dot-containing laminated body including: forming a coating film by applying a quantum dot-containing composition which contains quantum dots, a curable compound, and a thixotropic agent and has a viscosity in a case of a shear rate of 500 s?1 of 3 to 100 mPa·s and a viscosity in a case of a shear rate of 1 s?1 of equal to or greater than 300 mPa·s, onto a first base material; laminating a second base material onto the coating film; and applying external stimuli to the coating film sandwiched between the first base material and the second base material for hardening, and forming a quantum dot-containing layer. The manufacturing method realizes high productivity, obtains a quantum dot-containing layer without coating streaks, and has slight film thickness unevenness of the quantum dot-containing laminated body.

Abstract: A functional laminated film includes a gas barrier film; and a light-extracting layer provided on the surface of the gas barrier film, in which the gas barrier film includes a base film and a barrier laminate which is provided on the base film and includes an organic layer and an inorganic layer, the inorganic layer and the light-diffusing layer are in direct contact with each other, and the light-diffusing layer is a layer formed from a light-diffusing layer forming material including organic light-diffusing particles and a binder that contains titanium oxide fine particles, a polyfunctional acrylic monomer, and a silane coupling agent.

Abstract: Even in the case where a coating liquid is applied onto an inorganic vapor-deposited film deposited on a support in advance, it is possible to effectively prevent cissing with a simple configuration and no increase in thickness of a product. A coating liquid preparation apparatus for preparing a coating liquid containing an actinic ray curable component, a coating apparatus for applying the coating liquid onto an inorganic vapor-deposited film deposited on a belt-like support in advance to form a coating, a first irradiation apparatus for irradiating the coating with an actinic ray, and a drying apparatus for drying the coating irradiated are provided in this order, and in the first irradiation apparatus, irradiation with an actinic ray is made in a state where the coating is wet, to place the curing rate of the curable component in the coating in a range of 10 to 80%.

Abstract: The present invention provides a die coater which can improve a distribution of film thickness in the width direction of a coating, and can reduce the length of an end part of the coating, and a method for producing a coated film. The die coater includes: a main body of a die block, which has a manifold and a slit that communicates with the manifold and discharges a coating liquid therefrom; and spacers that are arranged on each of both end parts in a width direction of the slit and define a width of a flow channel of the coating liquid, wherein an area of a notch region in each spacer is larger than an area of a virtual triangle.

Abstract: Even in the case where a coating liquid is applied onto an inorganic vapor-deposited film deposited on a support in advance, it is possible to effectively prevent cissing with a simple configuration and no increase in thickness of a product. A coating liquid preparation apparatus for preparing a coating liquid containing an actinic ray curable component, a coating apparatus for applying the coating liquid onto an inorganic vapor-deposited film deposited on a belt-like support in advance to form a coating, a first irradiation apparatus for irradiating the coating with an actinic ray, and a drying apparatus for drying the coating irradiated are provided in this order, and in the first irradiation apparatus, irradiation with an actinic ray is made in a state where the coating is wet, to place the curing rate of the curable component in the coating in a range of 10 to 80%.