Dai Nippon Printing Co., Ltd.

Dai Nippon Printingco., Ltd.

Junya Eguchi

Gen Furui

Shoichiro Ogumi

Tasuku Kitamura

Yukimitsu Iwata

Seika Minakoshi

Takashi Kuroda

Takashi Kodama

Seiichi Isojima

Yuki Ichikawa

Mitsuhiro Kuzuhara

Teppei Sotoda

Kousuke Matsuyama

Makoto Honda

Hiroki Nakagawa

Eiji Ooishi

Masatoshi Nishimura

Shubou Taya

Yousuke Kousaka

Yoshinari Matsuda

Hiroyuki Morikane

Syouichirou Ogumi

Takayuki Fukuda

Yuki Tobe

Nobuyuki Tobe

Masahiro Torimoto

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

Provided is an optical film that, when being incorporated into an image display device, can suppress the image display device from appearing pale. An optical film including a UV-absorbing layer containing a UV-absorbing agent B on a plastic film containing a UV-absorbing agent A, wherein fluorescence emission when the plastic film side is irradiated with excitation light having a wavelength of 365 nm and fluorescence emission when the UV-absorbing layer side is irradiated with excitation light having a wavelength of 365 nm satisfy a specific condition.

Optical film, polarizing plate, surface plate for image display device, and image display device

The present invention provides an optical layered body having excellent scratch resistance while having antireflective performance. The present invention relates to an optical layered body including a light-transmitting substrate; and at least an antiglare layer and a low refractive index layer disposed in the stated order on one surface of the light-transmitting substrate, wherein the low refractive index layer has an arithmetic average roughness Ra of projections and depressions of 4 nm or less and a ten-point average roughness Rz of the projections and depressions of 60 nm or less, where the Ra and the Rz are measured in any 5-μm square region of a surface of the low refractive index layer.

Optical layered body having specified average roughness and surface hardness

Provided is an optical sheet which is excellent in anti-glare property, contrast, and image clarity, as well as capable of displaying a powerful moving image, wherein at least one surface of the optical sheet is an uneven surface, and the uneven surface satisfies following conditions (1) to (3), provided that Rzis a ten-point average roughness according to JIS B0601: 1994 with a cut-off value of 0.8 mm, Rzis a ten-point average roughness according to JIS B0601: 1994 with a cut-off value of 0.25 mm, and SD is a standard deviation of an arithmetic average roughness Raaccording to JIS B0601: 1994 with a cut-off value of 0.8 mm:0.300 &#x3bc;m&#x2264;&#x2264;0.650 &#x3bc;m&#x2003;&#x2003;(1)0.170 &#x3bc;m&#x2264;&#x2264;0.400 &#x3bc;m&#x2003;&#x2003;(2)SD&#x2264;0.015 &#x3bc;m&#x2003;&#x2003;(3).

Optical sheet, polarizing plate, optical sheet sorting method, optical sheet production method, 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

The present invention provides an optical layered body which stably keeps light resistance such as ultraviolet resistance and oxidation resistance while keeping conventional physical properties and optical properties as the outermost surface material of an image display device, which is excellent in an antistatic property and which is capable of providing high image contrast when employed for an image display device. The optical layered body has a light transmitting substrate and a resin layer formed on one surface of the light transmitting substrate and is characterized in that the resin layer contains a binder resin, a polythiophene, an auxiliary conductive agent, and a leveling agent.

Optical layered body, method for producing optical layered body, polarizer and image display device

An antiglare film in which occurrence of screen scintillation and white muddiness can be sufficiently prevented at a high level while maintaining hard coating properties and antiglare properties, and excellent display images with a high contrast can be provided. The antiglare film includes a light-transmitting substrate; and an antiglare layer having a surface roughness on at least one surface of the light-transmitting substrate, wherein the antiglare layer contains an aggregate composed of two or more types of fine particles, and the aggregate forms a projection of the surface of the antiglare layer to form a surface roughness on the antiglare layer.

Antiglare film, polarizer, and image display device

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

Provided is an antiglare film having a hard coat property, capable of highly suppressing generation of a rainbow interference pattern and interference fringes in display images, preventing white muddiness and scintillation of a display screen, while giving high contrast in a bright room and a dark room. The antiglare film includes an antiglare layer having an uneven form on its surface and formed on one face of a transparent substrate having an in-plane birefringence and a retardation of 3000 nm or higher. The antiglare layer contains silica fine particles, organic fine particles, and a binder resin. The silica particles include particles forming agglomerates to be contained coarsely and densely in the antiglare layer. The agglomerates are distributed densely around the organic fine particles, and some agglomerates adhere to surfaces of the organic particles and/or some silica particles are impregnated in the inside of the organic particles.

Antiglare film, polarizer and image display device

An optical film, a polarizing plate, a liquid crystal panel, and an image display apparatus are provided, wherein interference fringes can be made to be invisible, and cloudiness can be reduced. In accordance with one aspect of the present invention, an optical film is provided, including a light transmissive substrate, and a functional layer disposed on the light transmissive substrate, wherein the functional layer has a concavo-convex surface forming a surface of the optical film. Assuming that a slope angle of the concavo-convex surface with respect to a film plane of the optical film in a cross section along a direction normal to the film plane is a surface angle, a percentage of a region in which the surface angle is 0.05&#xb0; or more is 50 % or more in the concavo-convex surface, and the root mean square slope R&#x394;q of a roughness curve on the concavo-convex surface is 0.003 or less.

The present invention aims to provide an antiglare film that can be thinned without lowering the hard coat properties and antiglare properties, highly suppress scintillation and white muddiness, and provide display images with a high contrast. The antiglare film includes a light-transmitting substrate and an antiglare layer with surface roughness on one face of the light-transmitting substrate, wherein the antiglare layer contains silica fine particles, organic fine particles, and a binder resin, part of the silica fine particles form agglomerates and the agglomerates are contained in the antiglare layer sparsely and densely, the agglomerates of the silica fine particles are densely distributed around the organic fine particles, and part of the agglomerates densely distributed around the organic fine particles are attached to the surface of the organic fine particles and/or have some of the silica fine particles contained in the agglomerates impregnate the inside of the organic fine particles.

Anti-glare film, polarizing plate and image display device

Provided is an optical layered body which sufficiently suppresses generation of interference fringes and curls, can make a hard coat layer thin, and prevent an increase in production cost. Provided is an optical layered body having a hard coat layer formed on one surface of a light-transmitting substrate, wherein the hard coat layer has a surface roughness on its surface and the surface roughness satisfies the following inequalities of &#x3b8;a and Kr where &#x3b8;a is an average inclination angle of the uneven part and Kr is Kurtosis of the unevenness:0.01&#xb0;&#x2266;&#x3b8;a&#x2267;0.10&#xb0;1&#x2266;Kr&#x2266;3.

Growing community of inventors

Tokyo, Japan

Junya Eguchi