Dai Nippon Printing Co., Ltd.

Michiaki Takei

Gen Furui

Yukimitsu Iwata

Masafumi Tanaka

Jun Tsujimoto

Keisuke Ikeda

Osamu Watanabe

Tomoyuki Horio

Sho Suzuki

Tatsuya Kozakai

Kio Mizuno

Keisuke Endou

Atsushi Washio

Keita Iwahara

Takanobu Tadaki

To provide an antireflection member which not only has a low reflectance, but also is enhanced in scratch resistance, and an image display device comprising the antireflection member. An antireflection membercomprising a low refractive index layeron a transparent substrate, in which the low refractive index layerincludes a binder resin and silica particlesand, a ratio of Si element attributed to the silica particles, obtained by analysis of a surface region of the low refractive index layerby X-ray photoelectron spectroscopy, is 10.0 atomic percent or more and 18.0 atomic percent or less and a ratio of C element under the assumption that the ratio of Si element is defined to be 100 atomic percent is 180 atomic percent or more and 500 atomic percent or less.

Antireflective member, and polarizing plate, image display device and antireflective article each equipped with same

An optical film having high anti-glare properties and favorable fingerprints wiping off properties is provided. The optical film has a first surface, and a second surface which is a surface opposite to the first surface, wherein the optical film comprises an anti-reflection layer and an anti-glare layer in this order from the first surface to the second surface, the first surface has a profile of depressions and projections, the first surface has an arithmetic mean height Sa of 0.05 μm or more specified in ISO 25178-2:2012, and the first surface satisfies the relation represented by the following Expression 1: Sw×Vmp≤2.00 (Expression 1) wherein 'Sw' represents a tilt angle (degrees) of 30 μl pure water droplet flowing down on the first surface; and “Vmp” represents a value of a peak material volume (ml/m) of the first surface specified in ISO 25178-2:2012.

Optical film, and polarizing plate, surface plate, image display panel and image display device using the optical film, and method for producing the optical film, and method for selecting optical film, and evaluation method of finger print wiping property

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Okayama, Japan

Michiaki Takei