Abstract: There is provided a light emitting device that can be used as a light guide plate and has an excellent antireflection function to extraneous light, and an optical body includes: a base material; a macro concave-convex structure that is formed on one surface of the base material and emits internally propagating light that is injected in an inside of the base material from a side surface of the base material, from another surface of the base material; and a micro concave-convex structure formed periodically to follow each of both surfaces of the base material and a surface of the macro concave-convex structure, and having an average period of concavity and convexity of less than or equal to a wavelength of visible light. The surface of the macro concave-convex structure has an inclined surface, and an arrangement of the micro concave-convex structure is a zigzag arrangement.

Abstract: There is provided a novel and improved optical body, master, and method for manufacturing an optical body in which the anti-reflection characteristics are improved even further, and fabrication is facilitated, the optical body having a concave-convex structure in which structures having convex shapes or concave shapes are arrayed on an average cycle less than or equal to visible light wavelengths. The structures have an asymmetric shape with respect to any one plane direction perpendicular to a thickness direction of the optical body. Accordingly, the anti-reflection characteristics are improved even further, and fabrication is facilitated.

Abstract: The optical device 1 according to the present disclosure includes substrates 10 provided opposite to each other, a partition wall 20 formed between opposing faces of the substrates 10 and separating adjacent spaces, and a fluid 30 filled in each space 20b separated by the partition wall and containing an electric field control material, wherein the optical device further includes, between at least one of the substrates 10 and the partition wall 20, a fine uneven layer 40 having fine uneven shapes and a conductive layer 50 formed according to a shape of the fine uneven layer.

Abstract: An optical body that has excellent anti-reflection performance and transmittance for light having wavelengths in the visible light band and good absorption performance for light having wavelengths in the near-infrared band is provided. To solve the above problem, the present disclosure provides an optical body 100 including a base material 20, a dye-containing resin layer 30 formed on the base material 20, and an anti-reflection layer 40 formed on the resin layer 30 and having a micro uneven structure in at least one surface. The average spectral transmittance of the optical body 100 for light in a wavelength range of 420 to 680 nm is 60% or greater, and the minimum spectral transmittance of the optical body 100 for light in a wavelength range of 750 to 1400 nm is less than 60%.

Abstract: There is provided an optical body and a display device that enable wavelength dependence of a reflectance to be reduced and reflection of incident light to be further suppressed, the optical body including: a concave-convex structure formed on a surface of a base material. An average period of concavities and convexities of the concave-convex structure is equal to or shorter than a wavelength belonging to a visible light band. A standard deviation of differences between respective positions of bottom faces of the concavities of the concave-convex structure in a normal direction of a flat surface of the base material and a median of the positions of the bottom faces is greater than or equal to 25 nm.

Abstract: Provided is a fine concave-convex laminate that is reduced in thickness, has excellent antireflection performance, and can suppress scattering and absorption of short-wavelength light. A fine concave-convex laminate comprises a substrate, a first transparent organic layer, and a second transparent organic layer laminated in the stated order, wherein the first transparent organic layer has a fine concave-convex structure at a surface facing the second transparent organic layer, the second transparent organic layer has fine concave-convex structures at both surfaces, and a thickness of a composite layer composed of the first transparent organic layer and the second transparent organic layer is 15 ?m or less.

Abstract: There is provided a novel, improved optical body, the micro concave-convex structure of which can be protected without the use of a protective film, a film adhesive body, and a method for manufacturing an optical body, the optical body including: an optical film, on one surface of which is formed a first micro concave-convex structure in which an average cycle of concavities and convexities is less than or equal to a visible light wavelength; and a master film that covers the first micro concave-convex structure. The master film is provided with a second micro concave-convex structure formed on a surface that faces the first micro concave-convex structure, the second micro concave-convex structure is made of a cured curing resin, and has a reverse shape of the first micro concave-convex structure, and the optical film and the master film are separable from each other.

Abstract: Provided is a laminate and an anti-reflection structure that can be thinned, are excellent in anti-reflection performance and can keep reflection chromaticity neutral. In the laminate according to the present disclosure, a part of a light shielding film has a non-light shielding portion without a light shielding film; an anti-reflection structure is formed in the non-light shielding portion through an adhesion layer, and a fine uneven structure has an uneven period that is equal to or less than a wavelength of visible light; and a color difference (?E) between a reflected light by the light shielding film and a reflected light by the anti-reflection structure expressed in the formula shown below is equal to or less than 1.5.

Abstract: There is provided a new and improved master manufacturing method, master, and optical body enabling more consistent production of optical bodies having a desired haze value, the master manufacturing method including: forming a first micro concave-convex structure, in which an average cycle of concavities and convexities is less than or equal to visible light wavelengths, on a surface of a base material body that includes at least a base material; forming an inorganic resist layer on the first micro concave-convex structure; forming, on the inorganic resist layer, an organic resist layer including an organic resist and filler particles distributed throughout the organic resist; and etching the organic resist layer and the inorganic resist layer to thereby superimpose and form on the surface of the base material a macro concave-convex structure and a second micro concave-convex structure.

Abstract: Provided is an anti-reflection structure with excellent anti-reflection performance and transparency, and with reduced generation of wrinkles on the surface. The present disclosure is an anti-reflection structure 10 including at least an adhesion layer 20 and an anti-reflection layer 30 formed on the adhesion layer 20 and having fine uneven structures on both sides thereof. The storage elastic modulus E? of the adhesion layer 20 is equal to or greater than 25 MPa, and fine uneven structures formed on both sides of the anti-reflection layer 30 each have an uneven period P equal to or less than the wavelength of visible light.

Abstract: There is provided an optical body and a display device that enable wavelength dependence of a reflectance to be reduced and reflection of incident light to be further suppressed, the optical body including: a concave-convex structure formed on a surface of a base material. An average period of concavities and convexities of the concave-convex structure is equal to or shorter than a wavelength belonging to a visible light band. A standard deviation of differences between respective positions of bottom faces of the concavities of the concave-convex structure in a normal direction of a flat surface of the base material and a median of the positions of the bottom faces is greater than or equal to 25 nm.

Abstract: There is provided an optical body and a display device that enable wavelength dependence of a reflectance to be reduced and reflection of incident light to be further suppressed, the optical body including: a concave-convex structure formed on a surface of a base material. An average period of concavities and convexities of the concave-convex structure is equal to or shorter than a wavelength belonging to a visible light band. A standard deviation of differences between respective positions of bottom faces of the concavities of the concave-convex structure in a normal direction of a flat surface of the base material and a median of the positions of the bottom faces is greater than or equal to 25 nm.

Abstract: There is provided an optical body with improved antireflection capability, a display device, and a method for manufacturing an optical body, the optical body including: a first concave-convex structure formed on a surface of a base material; and a second concave-convex structure superimposed on the first concave-convex structure. An average concave-convex period of the first concave-convex structure is larger than a wavelength in a visible light region, an average concave-convex period of the second concave-convex structure is less than or equal to the wavelength in the visible light region, and projecting parts of the second concave-convex structure extend in a direction normal to a flat plane of the base material.

Abstract: Provided are a cylindrical base, a master and a method for manufacturing a master enabling a uniform transfer of a fine pattern. A cylindrical base of a quartz glass having an internal strain in terms of birefringence of less than 70 nm/cm is used. A resist layer is deposited to an outer circumference surface of this cylindrical base, a latent image is formed on the resist layer, the latent image formed on the resist layer is developed and the pattern of the developed resist layer is used as a mask for etching to form a structure including concaves or convexes arranged in a plurality of rows on the outer circumference surface of the cylindrical base.

Abstract: Provided is an optical filter having different color correction effects for specific wavelength regions depending on the angle of incident light. The optical filter includes a transmission portion transmitting light and an absorption portion absorbing light between a plane of incidence and a plane of emission, and the volume of the transmission portion is larger than the volume of the absorption portion. For the optical filter, when the transmission spectrum S0 of light incident at 0° and the transmission spectrum S60 of light incident at 60° are superimposed, the transmittance (%) at 60° is lower than the transmittance (%) at 0° by 15% or more for a first wavelength band, and the difference between the transmittance (%) at 60° and the transmittance (%) at 0° is lower by 10% or more less for a second wavelength band.

Abstract: A laminate includes a thin film structural body and retention films. A first retention film is stacked on one face of the thin film structural body and a second retention film is stacked on another face of the thin film structural body. The thin film structural body has a first fine irregularity structure at a face that is in contact with the first retention film and has a second fine irregularity structure at a face that is in contact with the second retention film. The first retention film has a third fine irregularity structure at a face that is in contact with the thin film structural body. The second retention film has a fourth fine irregularity structure at a face that is in contact with the thin film structural body. The laminate includes a half cut section. The second retention film contains a UV-curable resin.

Abstract: To manufacture a transferred object in which a transfer failure is restrained with higher efficiency. Provided is a master including a base material, a pattern layer provided on one surface of the base material, a micro concave-convex structure being formed in the pattern layer, and an absorption layer provided to be sandwiched between the base material and the pattern layer, and having a light absorption coefficient larger than a light absorption coefficient of the pattern layer.

Abstract: There is provided an optical body with improved antireflection capability, a display device, and a method for manufacturing an optical body, the optical body including: a first concave-convex structure formed on a surface of a base material; and a second concave-convex structure superimposed on the first concave-convex structure. An average concave-convex period of the first concave-convex structure is larger than a wavelength in a visible light region, an average concave-convex period of the second concave-convex structure is less than or equal to the wavelength in the visible light region, and projecting parts of the second concave-convex structure extend in a direction normal to a flat plane of the base material.

Abstract: A transparent laminate including a transparent substrate and structure layer, wherein the structure layer contains protrusion portions, depression portions, or both on a surface thereof, and an average distance between the adjacent protrusion portions or between the adjacent depression portions is equal to or less than a visible light wavelength, the structure layer includes a polymerized product of an active energy ray curable resin composition, the resin composition includes a composition of a (meth)acryloyl group-containing polymerizable compound, the compound composition includes one or more from each of (A), (B), and (C): (A) a monofunctional (meth)acryloyl group-containing polymerizable compound; (B) alkylene glycol di(meth)acrylate; and (C) trifunctional or higher (meth)acrylate, the (A) satisfies certain conditions specifying a type and amount of a compound, and a ratio (E?150/E?50) of storage elastic modulus E?150 of the structure layer at 150° C. to storage elastic modulus E?50 thereof at 50° C.

Abstract: A method of forming an antireflection optical body (16a) includes: an application step of applying an adhesive (12) other than an epoxy adhesive onto an adherend (11); a fixing step of pressing a substrate film (15) having a fine structure body (16) at one surface side thereof against the adherend (11) from an opposite surface side to the one surface side to fix the adherend (11) and the fine structure body (16) through the adhesive (12); and a peeling separation step of releasing the pressing of the substrate film (15) and peeling fixed fine structure body (16) that is fixed to the adherend (11) through the adhesive (12) from the substrate film (15) while separating the fixed fine structure body (16) from fine structure body (16) on the substrate film (15) at a location where the fine structure body (16) is fixed to the adherend (11) such that the fixed fine structure body (16) is formed on the adherend (11) as an antireflection optical body (16a).