Patent classifications
G02B1/16
Carbon nanotube-based curable coating composition providing antistatic abrasion-resistant coated articles
The present invention relates to a curable composition, providing, upon curing, an abrasion-resistant, transparent, antistatic coating, comprising carbon nanotubes and a binder comprising at least one epoxysilane compound, preferably an epoxyalkoxysilane, and optionally fillers such as nanoparticles of non electrically conductive oxides and/or additional binder components such as tetraethoxysilane. The invention further relates to optical articles comprising a substrate, and, starting from the substrate, an abrasion- and/or scratch-resistant coating, and an antistatic coating formed by depositing directly onto said abrasion- and/or scratch-resistant coating the above referred curable composition. The obtained optical articles exhibit antistatic properties, high optical transparency with about 91-92% of transmittance, low haze and improved abrasion resistance.
In-cell liquid crystal panel and liquid crystal display device
An in-cell type liquid crystal panel is disclosed including an in-cell type liquid crystal cell provided with a liquid crystal layer, a first transparent substrate and a second transparent substrate sandwiching the liquid crystal layer, and a touch sensing electrode unit related to a touch sensor and a touch-driven function between the first transparent substrate and the second transparent substrate and a pressure-sensitive adhesive layer attached polarizing film disposed, via a first adhesive layer and without interposing a conductive layer, to the first transparent substrate side on a viewing side of the in-cell type liquid crystal cell. The pressure-sensitive adhesive layer attached polarizing film comprises a surface treatment layer, a first polarizing film, and a first pressure-sensitive adhesive layer in this order, or comprises the surface treatment layer, the first polarizing film, an anchor layer, and the first pressure-sensitive adhesive layer in this order.
Composition for transparent antistatic coating
The present invention relates to a curable composition providing upon curing a transparent antistatic coating comprising a silica organosol, a salt comprising an alkali cation and a Bronsted acid. The invention further relates to optical articles comprising a substrate at least partially coated with a transparent antistatic coating formed by depositing onto substrate and curing the above curable composition. The obtained optical articles exhibit enhanced antistatic properties, high optical transparency, low haze and good mechanical properties, in particular a good abrasion resistance.
Composition for transparent antistatic coating
The present invention relates to a curable composition providing upon curing a transparent antistatic coating comprising a silica organosol, a salt comprising an alkali cation and a Bronsted acid. The invention further relates to optical articles comprising a substrate at least partially coated with a transparent antistatic coating formed by depositing onto substrate and curing the above curable composition. The obtained optical articles exhibit enhanced antistatic properties, high optical transparency, low haze and good mechanical properties, in particular a good abrasion resistance.
Optical film, and optical barrier film, color conversion film and backlight unit each using the same
An optical film comprises a first transparent film substrate, a matte layer arranged on the first transparent film substrate and having irregularities, the matte layer having a coefficient of static friction of not larger than 0.3 and a maximum height roughness Rz of not less than 0.05 μm to not larger than 8 μm.
Optical film, and optical barrier film, color conversion film and backlight unit each using the same
An optical film comprises a first transparent film substrate, a matte layer arranged on the first transparent film substrate and having irregularities, the matte layer having a coefficient of static friction of not larger than 0.3 and a maximum height roughness Rz of not less than 0.05 μm to not larger than 8 μm.
Polarizing plate and liquid crystal display device
A polarizing plate includes: a polyvinyl alcohol-based polarizer; and transparent protective films provided on both surfaces of the polyvinyl alcohol-based polarizer with an adhesive layer interposed between each of the transparent protective films and the polyvinyl alcohol-based polarizer. A first transparent protective film contains a (meth)acrylic resin and an ultraviolet absorber, the (meth)acrylic resin having an unsaturated carboxylic acid alkyl ester unit and a glutarimide unit represented by the general formula (1), having an imidization ratio of 2.5 to 5.0% and an acid value of 0.10 to 0.50 mmol/g, and having an acrylic ester unit of less than 1% by weight. A second transparent protective film contains a cycloolefin-based resin. ##STR00001##
R.sup.1 and R.sup.2 each independently represent hydrogen or an alkyl group; and R.sup.3 represents an alkyl group, a cycloalkyl group, or an aryl group.
Polarizing plate and liquid crystal display device
A polarizing plate includes: a polyvinyl alcohol-based polarizer; and transparent protective films provided on both surfaces of the polyvinyl alcohol-based polarizer with an adhesive layer interposed between each of the transparent protective films and the polyvinyl alcohol-based polarizer. A first transparent protective film contains a (meth)acrylic resin and an ultraviolet absorber, the (meth)acrylic resin having an unsaturated carboxylic acid alkyl ester unit and a glutarimide unit represented by the general formula (1), having an imidization ratio of 2.5 to 5.0% and an acid value of 0.10 to 0.50 mmol/g, and having an acrylic ester unit of less than 1% by weight. A second transparent protective film contains a cycloolefin-based resin. ##STR00001##
R.sup.1 and R.sup.2 each independently represent hydrogen or an alkyl group; and R.sup.3 represents an alkyl group, a cycloalkyl group, or an aryl group.
Optical Article Comprising an Antireflective Coating with a Low Reflection Both in the Ultraviolet Region and in the Visible Region
This invention relates to an ophthalmic lens with a low reflection in the ultraviolet region, comprising a transparent substrate with a front main face and a rear main face, said rear main face being coated with a multilayered antireflective coating comprising a stack of at least one layer having a refractive index higher than 1.6 and of at least one layer having a refractive index lower than 1.55, wherein: the mean reflection factor R.sub.uv on said rear face between 280 nm and 380 nm, weighted by the function W(λ), is lower than or equal to 5%, preferably is lower than or equal to 4%, for an angle of incidence of 35°, the Chroma C* of reflected light is equal to or lower than 4, preferably lower than or equal to 3, for an angle of incidence (θ) of 15°.
Optical Article Comprising an Antireflective Coating with a Low Reflection Both in the Ultraviolet Region and in the Visible Region
This invention relates to an ophthalmic lens with a low reflection in the ultraviolet region, comprising a transparent substrate with a front main face and a rear main face, said rear main face being coated with a multilayered antireflective coating comprising a stack of at least one layer having a refractive index higher than 1.6 and of at least one layer having a refractive index lower than 1.55, wherein: the mean reflection factor R.sub.uv on said rear face between 280 nm and 380 nm, weighted by the function W(λ), is lower than or equal to 5%, preferably is lower than or equal to 4%, for an angle of incidence of 35°, the Chroma C* of reflected light is equal to or lower than 4, preferably lower than or equal to 3, for an angle of incidence (θ) of 15°.