A display device window includes a polymer blending resin layer and a light transmittance film disposed on the polymer blending resin layer. The polymer blending resin layer includes a continuous phase and a dispersion phase.

Optical stacks containing one or more patterned transparent conductor layers may be damaged by electrostatic discharges that occur during the optical stack manufacturing process. Such damage may result in non-conductive conductors within the patterned transparent conductor layer. An electrostatic discharge protected optical stack may include a substrate layer, a first anti-static layer having a sheet resistance of from about 10.sup.6 ohms per square (Ω/sq) to about 10.sup.9 Ω/sq, and a patterned transparent conductor layer. Methods of testing and assessing damage to patterned transparent conductors are provided.

Provided is an optical layered body which is extremely high in the stability of the antistatic performance, and has a stable surface resistance even after a durability test. The optical layered body includes an antistatic layer on one face of a light-transmitting substrate, wherein the antistatic layer is formed using a composition for an antistatic layer containing conductive fine particles, a resin component, and a solvent, and the resin component has no reactive functional groups in a molecule, and is soluble in the solvent and compatible with the conductive fine particles.

The claimed invention provides an antistatic hard coat film that is extremely excellent in white muddiness resistance and antistatic properties and sufficiently prevents an interference fringe pattern. The claimed invention provides an antistatic hard coat film including a triacetyl cellulose substrate and a hard coat layer formed on the triacetyl cellulose substrate, the hard coat layer including an antistatic agent, a (meth)acrylate resin, and a polymer of a (meth)acrylate monomer, the triacetyl cellulose substrate including a permeation layer formed by permeation of the (meth)acrylate monomer from the hard coat layer side of the interface toward the opposite side of the hard coat layer, the antistatic hard coat film satisfying Formulas (1), (2), and (3):
3 mT18 mFormula (1)
0.3Tt0.9TFormula (2)
2 mTt11 mFormula (3)
where T denotes the total thickness (m) of the permeation layer and the hard coat layer, and t denotes the thickness (m) of the permeation layer.

An omnidirectional structural color pigment having a protective coating. The pigment has a first layer of a first material and a second layer of a second material, the second layer extending across the first layer. In addition, the pigment reflects a band of electromagnetic radiation having a predetermined full width at half maximum (FWHM) of less than 300 nm and a predetermined color shift of less than 30 when the pigment is exposed to broadband electromagnetic radiation and viewed from angles between 0 and 45. The pigment has a weather resistant coating that covers an outer surface thereof and reduces a relative photocatalytic activity of the pigment by at least 50%.

A protective film placed on an upper part of a metal film for protecting the metal film placed on a glass substrate. The protective film includes a silica film. The silica film has an extinction coefficient k less than or equal to 110.sup.4, a refractive index n greater than or equal to 1.466 at a wavelength of 632 nm, and a carbon content less than or equal to 3 atomic %.

A polarizing plate comprises a polarizer; and at least one optical film on at least one side of the polarizer, wherein the optical film comprises a polyester film, the polyester film has a shrinkage difference between a length shrinkage in a first diagonal direction and a length shrinkage in a second diagonal direction of 0.1% to +0.1% with respect to either the mechanical direction (MD) or the transverse direction (TD) of the polyester film (as a reference direction). An optical display apparatus includes the polarizing plate.

In one aspect, coated optical elements are described herein. In some implementations, a coated optical element comprises an optical element and a graphene coating layer disposed on a surface of the optical element. The graphene coating layer, in some implementations, has a thickness of about 100 nm or less.

A vehicle and a building includes a window and a window film attached on the window. The window film includes a polymer film, a carbon nanotube film embedded in the polymer film, and a protective layer located on the polymer film. The carbon nanotube film includes a plurality of carbon nanotubes substantially aligned along the same direction. The carbon nanotube film is located between the protective layer and the polymer film.

An optical article includes an optical element, a low refractive index layer disposed on the optical element having an effective refractive index of 1.3 or less and a polymeric protective layer disposed on the low refractive index layer. The low refractive index layer includes a binder, a plurality of metal oxide particles dispersed in the binder, and a plurality of interconnected voids. The polymeric protective layer does not increase an effective refractive index of the optical article by greater than 10%.