Dai Nippon Printing Co., Ltd.

Dai Nippon Printingco., Ltd.

Masayuki Tsunekawa

Kana Yamamoto

Tadafumi Shindo

Shubou Taya

Toshiki Iwasaki

Kentaro Hata

Ryohei Miyata

Makio Kurashige

Kazutoshi Ishida

Gen Furui

Yukimitsu Iwata

Tomoyuki Horio

Hiroko Suzuki

Shumpei Nishio

Norinaga Nakamura

Seiichi Isojima

A sparkle contrast correcting method includes a step of acquiring a first sparkle contrast that is caused by an anti-glare layer that is disposed on a surface of an electronic display and information that represents a first measurement condition, the first sparkle contrast being used as a comparison standard and being measured in the first measurement condition by using a first imaging lens that images emitted light from the anti-glare layer and a first two-dimensional image sensor on which the emitted light is imaged, a step of acquiring a second sparkle contrast that is caused by the anti-glare layer and information that represents a second measurement condition, the second sparkle contrast being used as a comparison target and being measured in the second measurement condition that differs from the first measurement condition by using a second imaging lens that images emitted light from the anti-glare layer and a second two-dimensional image sensor on which the emitted light is imaged, and a step of correcting the second sparkle contrast, based on a ratio between the first measurement condition and the second measurement condition for comparison with the first sparkle contrast.

Sparkle contrast correcting method, comparing method, comparing apparatus, electronic display manufacturing method, and anti-glare layer manufacturing method

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.

Optical layered body and image display device

It is intended to provide a writing sheet for a touch panel pen which can offer favorable writing feeling. The present invention provides a writing sheet for a touch panel pen (A) given below, the writing sheet having a surface whose maximum peak height Rp of a roughness curve and maximum valley depth Rv of the roughness curve defined in JIS B0601: 2001 satisfy the following conditions (A1) and (A2), and whose average wavelength &#x3bb;a calculated according to the following expression (i) from average tilt angle &#x3b8;a and arithmetic average roughness Ra defined in JIS B0601: 2001 satisfies the following condition (A3): 2.0 &#x3bc;m&#x2264;Rp&#x2264;8.0 &#x3bc;m (A1), 0.8 &#x3bc;m&#x2264;Rv&#x2264;6.0 &#x3bc;m (A2), 45 &#x3bc;m&#x2264;&#x3bb;a&#x2264;300 &#x3bc;m (A3), and &#x3bb;a=2&#x3c0;&#xd7;(Ra/tan(&#x3b8;a)) (i), &#x3c;touch panel pen (A)&#x3e; the touch panel pen having an angled part in at least a portion of a tip region, wherein a volumetric change of the tip region upon application of a vertical load of 100 gf is 1.0% or less.

Writing sheet for touch panel pen, touch panel, touch panel system, display device, and method for selecting writing sheet for touch panel pen

Provided is an optical laminate for a front surface of an in-cell touch panel liquid crystal element in which the thickness can be reduced while necessary functions are ensured, and a liquid crystal screen becoming cloudy can be prevented. The optical laminate for a front surface of an in-cell touch panel liquid crystal element comprises a phase difference plate, a polarizing film, and a surface protective film in this order, and further comprises a conductive layer. The surface protective film has optical anisotropy that scatters linear polarized light emitted from the polarizing film, and a thickness of the optical laminate is in a range of 90 &#x3bc;m to 450 &#x3bc;m.

Optical laminate for front surface of in-cell touch panel liquid crystal element and in-cell touch panel liquid crystal display device using same

An optical laminate for a front surface of an in-cell touch panel liquid crystal element has reduced thickness while avoiding cloudiness of the liquid crystal screen. The optical laminate for a front surface of an in-cell touch panel liquid crystal element comprises a phase difference plate, a polarizing film, and a transparent substrate in this order, and further comprises a conductive layer. The transparent substrate has optical anisotropy that scatters linear polarized light emitted from the polarizing film, the phase difference plate, the polarizing film, and the transparent substrate are laminated without other layers or only through the conductive layer, and a thickness of the optical laminate is in a range of 32 &#x3bc;m to 300 &#x3bc;m.

Provided is an optical layered body having excellent blocking resistance. The optical layered body includes a triacetyl cellulose substrate and a hard coat layer, the hard coat layer having fine surface roughness that has an average PV roughness Rtm of 2.2 to 11.5 nm, a base roughness depth R3z of 2.5 to 13.5 nm, and a ten-point average roughness Rz of 2.6 to 13.5 nm, and satisfy the relation Rtm&#x3c;R3z&#x2266;Rz.

Optical layered body, polarizer, and image display device

Provided is a hard coat film having high hardness and excellent restorability in view of the above circumstances. A hard coat film comprising: a light-transmitting substrate; and a hard coat layer, the hard coat layer comprising a cured product of a composition for a hard coat layer, the composition including an isocyanuric skeleton-containing urethane(meth)acrylate.

Hard coat film, polarizer and image display device

There is disclosed an electrode plate for a nonaqueous electrolyte secondary battery, which comprises a collector and an active material layer provided on at least one side of the collector, in which the active material layer has one or more slits. Such an electrode plate can facilitate infiltration of a liquid electrolyte even when wound at high density and can have high stability of quality. There is also disclosed a nonaqueous electrolyte secondary battery with high capacity and high quality, which is constructed using the above-mentioned electrode plate.

Method of producing an electrode plate for a nonaqueous electrolyte secondary battery

An electric double layer capacitor electrode which has a low collector resistance and a high capacitance even when it is provided with an electrode active material layer containing more activated carbon is disclosed. A method for producing such an electric double layer capacitor electrode and an electric double layer capacitor are also disclosed. The electric double layer capacitor is characterized by sealing a polarized electrode, wherein a pattern of electrode active material layer is formed on at least one surface of a collector through intermittent application by a die-coating method or a comma reverse method and the pattern is composed of electrode active material layers arranged at intervals at least in the longitudinal direction of the collector, at least a pair of polarized electrodes, a separator and an electrolytic solution in a container.

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Tokyo, Japan

Masayuki Tsunekawa