Dai Nippon Printing Co., Ltd.

Gen Furui

Takashi Kodama

Yukimitsu Iwata

Makoto Honda

Junya Eguchi

Jun Tsujimoto

Shoichiro Ogumi

Yoshihiro Nishimura

Mitsuhiro Kuzuhara

Seika Minakoshi

Shigeki Murakami

Koichi Mikami

Hiroko Suzuki

Kiyoshi Itoh

Masafumi Tanaka

Mariko Hayashi

Seiichi Isojima

Teppei Sotoda

Michiaki Takei

Sanae Yoshida

Keisuke Ikeda

Takumi Yoneyama

Kousuke Matsuyama

Makio Kurashige

Kazutoshi Ishida

Takashi Kuroda

Hiroki Nakagawa

Shumpei Nishio

Norinaga Nakamura

Seiji Shinohara

Masayuki Tsunekawa

Eiji Ooishi

Shubou Taya

Tomoyuki Maekawa

Tasuku Kitamura

Yosuke Takayama

Hidetake Miyazaki

Tomohiro Ogawa

Aya Naitou

Masaharu Sato

Takayuki Fukuda

Syouichirou Ogumi

Provided is an anti-glare film that can suppress reflection and impart a sense of luxury by suppressing surface graininess. The anti-glare film includes a first main surface and a second main surface opposite to the first main surface, in which when the average inclination angle with a cut-off value of 0.8 mm of the first main surface is defined as θaand the average inclination angle with a cut-off value of 2.5 mm of the first main surface is defined as θa, the anti-glare film satisfies the following Equations (1) and (2).0.20 degrees≤θ≤0.70 degrees  (1)|θ|≤0.10 degrees  (2)

Antiglare film, and polarizing plate, surface plate, and image display device that use same

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 film which has high anti-glare properties, enables a suppress of a reduction in jet-black appearance by reflected scattered light, and has favorable scratch resistance. An optical film having a surface with depressions and projections, wherein the surface with depressions and projections has a peak material volume Vmp of 0.010 ml/mor more and 0.050 ml/mor less specified in ISO 25178-2:2012, and a minimum autocorrelation length Sal of 4.0 μm or more and 12.0 μm or less specified in ISO 25178-2:2012.

Optical film, image display panel, and image display device

Provided is an optical film which has high anti-glare properties and high scratch resistance and enables a suppression in reflected scattered light. An optical film having a surface with depressions and projections, wherein the surface with depressions and projections has a developed interfacial area ratio Sdr of 0.010 or more and 0.060 or less specified in ISO 25178-2:2012, and a minimum autocorrelation length Sal of 4.0 μm or more and 12.0 μm or less specified in ISO 25178-2:2012.

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

Provided is an anti-glare film that can suppress glare in various display devices with different distances between the display elements and the anti-glare layer. The anti-glare film includes an anti-glare layer, wherein the anti-glare layer has a 500-μm square area, as measured for surface roughness, satisfying condition 1 and condition 2 below, where the maximum peak height is defined as P, a plane having a height obtained by adding P/6 to the average height is defined as the first reference plane, the number of projections exceeding the first reference plane is defined as N1, a plane having a height obtained by adding P/3 to the average height is defined as the second reference plane, and the number of projections exceeding the second reference plane is defined as N2:is 0.20 μm or more and 1.20 μm or less; and  <condition 1>0.20≤2/1≤0.45.  <condition 2>.

Anti-glare film; anti-glare article, touchscreen, and display device using same; and method for selecting anti-glare film

Provided is an anti-glare film excellent in anti-glare properties and capable of suppressing reflected scattered light. The anti-glare film includes an anti-glare layer, the anti-glare film having an uneven surface, wherein for an amplitude spectrum of elevation of the uneven surface, when a sum of amplitudes corresponding to spatial frequencies of 0.005 μm, 0.010 μm, and 0.015 μmis defined as AM1 and an amplitude at a spatial frequency of 0.300 μmis defined as AM2, AM1 is 0.070 μm or more and 0.400 μm or less, AM2 is 0.0050 μm or more, and AM2<AM1.

Anti-glare film and image display device

Provided is a method for selecting a touch panel pen writing member that enhances the efficiency for product design and quality management of writing members. A method for selecting a touch panel pen writing member, in which a writing member satisfying the following requirement A1-1 is selected as the touch panel pen writing member: &#x3c;Requirement A1-1&#x3e; A touch panel pen is secured in a state of being in contact with the surface of the touch panel pen writing member at an angle of 60 degrees, then while a vertical load of 100 gf is kept applied to the touch panel pen and while the touch panel pen writing member is moved 40 mm in one direction at a speed of 14 mm/second, the kinetic friction force in the movement direction given to the touch panel pen is measured at intervals of 0.001 seconds, and an average of the kinetic friction forces obtained every 0.001 second is calculated. Furthermore, after the movement of 40 mm in one direction of the touch panel pen writing member is completed, the vertical load of 100 gf applied to the touch panel pen is maintained, the touch panel pen is kept in the state of being in contact with the surface of the touch panel pen writing member at an angle of 60 degrees. In this state, the residual friction force in the movement direction given to the touch panel pen is measured at intervals of 0.001 seconds, and an average of residual friction forces obtained every 0.001 second is calculated. The average of the kinetic friction force and the average of the residual friction force satisfy a relationship '0.45&#x3c;average of residual friction force/average of kinetic friction force'.

Method for selecting touch panel pen writing member, touch panel system, touch panel pen writing member, touch panel, and display device

Provided are: an optical film, wherein interference fringes can be suppressed from being generated, cloudiness is not observed, and a manufacture cost can be reduced. In accordance with one aspect of the present invention, there is provided an optical filmincluding a functional layer, wherein the functional layerhas a concavo-convex surfaceA; and in a state in which the concavo-convex surfaceA is irradiated with parallel light travelling in a direction sloped at 10&#xb0; with respect to a normal direction N of the optical film, in an angle distribution of reflected light intensities measured in a plane including both directions of the normal direction N and the travelling direction T of the parallel light, a value obtained by subtracting &#xbd; angle width from 1/100 angle width is 0.7&#xb0; or more and 1.4&#xb0; or less.

Optical film, polarizing plate, liquid crystal panel, and image display apparatus

An antiglare film, including: a light transmissive substrate; and an antiglare layer that is disposed on a light transmissive substrate and includes a concavo-convex surface, wherein a surface of the antiglare film is a concavo-convex surface; the antiglare film has a total haze value of 0% or more and 5% or less; the antiglare film has an internal haze value of 0% or more and 5% or less; and assuming that a transmission image sharpness of the antiglare film, measured using an optical comb with a width of 0.125 mm, is C (0.125), and that a transmission image sharpness of the antiglare film, measured using an optical comb with a width of 0.25 mm, is C (0.25), an expression (1) and an expression (2) described below are satisfied:(0.25)&#x2212;(0.125)&#x2267;2%&#x2003;&#x2003;(1); and(0.125)&#x2267;65%&#x2003;&#x2003;(2).

Anti-glare film, polarizer, liquid-crystal panel, and image display device

The present invention provides an antiglare film that has a thin antiglare layer and suppresses generation of scintillation and white muddiness at significantly high levels, while maintaining the hard-coating property and antiglare property, thereby providing favorable high-contrast display images. The present invention is an antiglare film including: a light-transmitting substrate; and an antiglare layer that has surface roughness and is provided on one face of the light-transmitting substrate, wherein the antiglare layer has plural rod-shaped projections having an aspect ratio of at least 2 on the opposite side of the surface contacting the light-transmitting substrate, the projections of the antiglare layer occupy 20 to 40%, per unit area, of the opposite side of the surface contacting the light-transmitting substrate, and Nindicating the number of all projections and Nindicating the number of rod-shaped projections among all the projections, per unit area of the surface of the antiglare layer, satisfy the following formula (1):&#x3e;0.2&#x2003;&#x2003;(1).

Antiglare film, polarizer, and image display device

An antiglare film that includes light-transmitting substrate and a diffusion layer, the diffusion layer having a surface roughness on a surface thereof and being formed on at least one side of the light-transmitting substrate, wherein the diffusion layer contains a cured product of a binder component and organic fine particles (A) dispersed in the cured product of the binder component, and the following expression is satisfied: |N&#x2212;n|&#x3e;|n&#x2212;n|&#x3e;0 where Nrepresents a refractive index of the organic fine particles (A) before the organic fine particles (A) are introduced into the diffusion layer, nrepresents a refractive index of the organic fine particles (A) in the diffusion layer, and nrepresents a refractive index in the cured product of the binder component.

Anti-glare film, method for producing anti-glare film, polarizer and image display device

The present invention provides an antiglare film having an excellent antiglare property and being capable of suitably preventing an occurrence of scintillation and a decrease in contrast. The antiglare film includes a light-transmitting substrate and a diffusion layer. The diffusion layer has a surface roughness and is formed on at least one side of the light-transmitting substrate, wherein the diffusion layer contains organic fine particles (A), organic fine particles (B), and a cured product of a binder component, and satisfies the expressions: (1) &#x394;&#x3c;&#x394;; (2) R&#x3e;R; and (3) C/R&#x3c;C/R, where Cand Crepresent a content of the organic fine particles (A) or the organic fine particles (B) in the diffusion layer, respectively, Rand Rrepresent an average particle size thereof, respectively, and &#x394;and &#x394;represent a refractive index thereof relative to the cured product of the binder component, respectively.

Anti-glare film, method for producing anti-glare film, polarizer, and image display device having different size particles with impregnation layers

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Tokyo, Japan

Gen Furui