Abstract: An adhesive film includes a single adhesive layer. The single adhesive layer includes an acrylic polymer and an ultraviolet light absorber capable of absorbing in a wavelength range between 320 nanometers and 390 nanometers. The single adhesive layer has first and second opposing major surfaces and a core between the first and second opposing major surfaces. The first and second opposing major surfaces each has an elastic modulus that is higher than an elastic modulus of the core, or the first and second opposing major surfaces each has an elastic modulus that is lower than an elastic modulus of the core. The article can be, for example, an automotive display that includes the adhesive film.

Abstract: A backlight according to an embodiment includes a reflecting portion, a nonwoven fabric disposed opposing the reflecting portion, a reflective polarization portion disposed along a surface of the nonwoven fabric opposite to the surface of the nonwoven fabric opposing the reflecting portion, a side wall surrounding a cavity formed between the reflecting portion and the nonwoven fabric, and a light source disposed proximate the side wall and configured to illuminate light in the cavity, wherein a haze value of the nonwoven fabric is 90% or greater, an effective transmittance of the nonwoven fabric is 0.8 or greater, and a basis weight of the nonwoven fabric is 60 g/m2 or greater.

Abstract: Problem: To provide an optically clear adhesive with a high dielectric constant having an excellent balance of adhesive strength and cohesive strength as well as excellent optical characteristics, and an optical laminate containing the same. Solution: The optically clear adhesive of an embodiment of the present disclosure comprises a polymer of an acrylic monomer composition containing a hydroxyl group-containing monomer and at least 0.09 mass % and less than 50 mass % of a monofunctional alkyl (meth)acrylate, wherein the number of moles of OH in 100 g of the adhesive is at least 0.3 and at most 0.90.

Abstract: To provide a detaching method capable of detaching a first substrate and a second substrate bonded together through a pressure-sensitive adhesive film, while minimizing the physical external load imposed on these substrates. A method for detaching a first substrate and a second substrate bonded together by a pressure-sensitive adhesive film comprising a pressure-sensitive adhesive polymer having dispersed therein a thermally decomposable metal hydroxide or metal salt hydrate filler, the method comprising a step of heating the pressure-sensitive adhesive film to a temperature capable of causing decomposition and dehydration of the metal hydroxide or metal salt hydrate, thereby accelerating the detachment.

Abstract: To provide a detaching method capable of detaching a first substrate and a second substrate bonded together through a pressure-sensitive adhesive film, while minimizing the physical external load imposed on these substrates. A method for detaching a first substrate and a second substrate bonded together by a pressure-sensitive adhesive film comprising a pressure-sensitive adhesive polymer having dispersed therein a thermally decomposable metal hydroxide or metal salt hydrate filler, the method comprising a step of heating the pressure-sensitive adhesive film to a temperature capable of causing decomposition and dehydration of the metal hydroxide or metal salt hydrate, thereby accelerating the detachment.