Fujifilm Corporation

Fuji Photo Film Company, Limited

Katsumi Inoue

Tetsuya Asakura

Jun Watanabe

Ryuji Saneto

Masaaki Suzuki

Hiroyuki Yoneyama

Daiki Wakizaka

Takato Suzuki

Akihiro Matsufuji

Hideyasu Ishibashi

Kenichi Fukuda

Makoto Tanaka

Shuntaro Ibuki

Akira Ikeda

Miho Asahi

Tokuju Oikawa

Shoji Yasuda

Kentaro Shiratsuchi

Satomi Suzuki

Isao Ikuhara

Kenichiro Hatayama

Shuntarou Ibuki

A method for producing an optical film is provided and includes: simultaneously coating at least two coating solutions over a transparent support, the at least two coating solutions each containing a solvent and a solute; and drying the solvent in each of the at least two coating solutions to provide at least two coating layers. When the at least two coating layers are, . . . n&#x2212;1 and n layers in sequence from the outermost surface of the at least two coating layers toward the transparent support, n being an integer of 2 or more, the main component of the solute in the n-th layer is insoluble or sparingly soluble in the main component of the solvent in the (n&#x2212;1)-th layer.

Production method of optical film, optical film and image display

An optical film, includes: a transparent support; and an optical functional layer as the outermost layer of the optical film, the optical functional layer being provided on or above the transparent support, wherein the optical functional layer has a thickness of 50 nm or more and not more than 250 nm; the optical functional layer contains low refractive index fine particles having a refractive index of not more than 1.45, high refractive index fine particles having a refractive index of 1.55 or more, and a fluorine-containing compound; the low refractive index fine particles are arranged substantially in a line on a surface of the optical functional layer on the opposite side of the transparent support; and the high refractive index fine particles are unevenly distributed in a lower part of the optical functional layer on the side of the transparent support.

Optical film, method for producing the same, polarizing plate and image display device

Provided is an antireflection film including, in the following order: a transparent support; at least one antiglare layer or diffusive layer containing a transparent resin and light-transmissive resin particles; and a low-refractivity layer having a refractive index lower than that of any of the transparent support and the antiglare layer or diffusive layer, wherein the transparent resin is formed by curing a mixture containing (A) a polyfunctional (meth)acrylate having at least two (meth)acryloyl groups, and (B) a modified polyfunctional (meth)acrylate modified through addition of any of ethylene oxide, propylene oxide or caprolactone, and the light-transmissive resin particles contain (C) high-crosslinking light-transmissive particles which are so high-crosslinking as to have a residual monomer content of at most 2.0% and which have a compression strength of from 39 to 98 N/mm.

Antireflection film, polarizing plate and image display device

Provided is an optical film including a transparent support; and an antiglare layer that comprises a light-transmitting resin and at least two kinds of light-transmitting particles, wherein the antiglare layer has a thickness of from 10 &#x3bc;m to 15 &#x3bc;m, each kind of the at least two kinds of light transmitting particles has an average particle size of from 7 &#x3bc;m to 15 &#x3bc;m, each kind of the at least two kinds of light transmitting particles has a refractive index different from a refractive index of the light-transmitting resin by from 0.001 to 0.050 in absolute value, and a total amount of the at least two kinds of light-transmitting particles are from 15 to 40 mass % based on all solid contents in the antiglare layer.

Optical film, polarizing plate, and image display

An antiglare film is provided, the antiglare film including: a support; and an antiglare layer including a surface that has asperities, wherein the antiglare layer contains at least first light-transmitting particles and second light-transmitting particles, the first light-transmitting particles have an average particle size that is 0.01 to 2.5 &#x3bc;m greater than an average thickness of the antiglare layer, the second light-transmitting particles have an average particle size that is at least 0.1 &#x3bc;m smaller than the average thickness of the antiglare layer, the first light-transmitting particles are contained in an amount of 0.1 to 2 mass % based on a total solid content in the antiglare layer, the second light-transmitting particles are contained in an amount of 2 to 30 mass % based on the total solid content in the antiglare layer, and the second light-transmitting particles include organic polymer-containing particles each of which has a core particle/shell layer structure.

Antiglare film, antireflective film, polarizing plate and image display device

An organic electroluminescent display includes a pair of substrates; an organic electroluminescent device between the pair of substrates, including: a pair of electrodes of an anode and a cathode, and a light-emitting layer between the pair of electrodes; and a light scattering film on a substrate on the viewing side of the pair of substrates, including: a transparent substrate film, and a light scattering layer which contains a light transmitting resin and a light scattering particle having a particle size of from 0.3 &#x3bc;m to 1.2 &#x3bc;m, wherein a ratio of (np/nb) is from 0.80 to 0.95 or from 1.05 to 1.35, taking a refractive index of the light scattering particle and the light transmitting resin as np and nb, respectively.

Organic electroluminescent display having light scattering film

An organic electroluminescent display includes a pair of substrates; an organic electroluminescent device between the pair of substrates, including: a pair of electrodes of an anode and a cathode, and a light-emitting layer between the pair of electrodes; and a light scattering film on a substrate on the viewing side of the pair of substrates, including: a transparent substrate film, and a light scattering layer which contains a light transmitting resin and a light scattering particle having a particle size of front more than 1.2 &#x3bc;m to 3.0 &#x3bc;m, wherein a ratio of (np/nb) is from 0.80 to 0.95 or from 1.05 to 1.35, taking a refractive index of the light scattering particle and the light transmitting resin as np and nb, respectively.

Organic electroluminescent display

An optical film is provided and includes: a transparent support; and a light diffusion layer containing light-transmitting particles and a binder. The light diffusion layer has an average thickness of from 7.5 to 30 &#x3bc;m, and the average thickness of the light diffusion layer is from 1.4 to 3.5 times as large as an average particle diameter of the light-transmitting particles.

Optical film, antireflection film, polarizing plate and image display device

To provide a protective film for a polarizing plate that shows a water vapor transmission rate (WVTR) of 30 g/m&#xb7;day or less at 60&#xb0; C. and a relative humidity of 40%, a water vapor transmission rate (WVTR) 80 g/m&#xb7;day or more and 300 g/m&#xb7;day or less at 60&#xb0; C. and a relative humidity of 95% and a value obtained by dividing the difference between WVTRand WVTRby the water vapor transmission rate (WVTR) at 60&#xb0; C. and a relative humidity of 60%, or (WVTR-WVTR) /WVTR, 2.0 or more.

Protective film for polarizing plate, polarizing plate, and liquid crystal display device

A light-scattering film is provided and includes a transparent support having thereon at least a light-scattering layer. When substantially parallel light is incident on a surface of the film at an incident angle of 5&#xb0;, the reflectance for an angle &#x3b8; in the light-receiving part measured in a plane containing the film normal line and the incident direction is R(&#x3b8;), the value obtained by normalizing R(&#x3b8;) by the reflectance of regular reflection is Rrel(&#x3b8;), and the value calculated from the maximum variation |dRrel(&#x3b8;)/d&#x3b8;|max for the angle &#x3b8; is a scattering coefficient A (formula 1), the reflection coefficient B (formula 2) calculated from the scattering coefficient A and the 5&#xb0; specular reflectance Rs is from 2.0 to 5.0.Scattering coefficient=1/(10rel(&#x3b8;)/&#x3b8;|max)&#x2003;&#x2003;(Formula 1)Reflection coefficient=2.2&#xd7;log 10()&#x2212;7.5&#xd7;log 10()+5.9&#x2003;&#x2003;(Formula 2)

Light-scattering film, polarizing plate and image display

An optical film comprising a transparent support and a layer having internal scattering properties, wherein the optical film has an image sharpness, as measured in an optical comb width of 0.5 mm in conformity to JIS K7105, of from 30.0% to 99.9%, a haze value as caused by surface scattering of less than 3%, and a haze value as caused by internal scattering of from 15 to 40%.

Optical film and process for production the same, antireflection film and process for production the same, polarizing plate including the film, liquid crystal display device including the polarizing plate, and liquid crystal display device

An object of the present invention is to provide an optical film assured of reflectance low enough to suppress glaring and excellent in the scratch resistance, antifouling property and antistatic property, and another object is to provide a polarizing plate and a display, using such an antireflection film. These objects can be attained by an optical film, particularly, an antireflection film, containing a support and a thin film layer formed by coating a composition containing fine particles and a binder, in which the SP value ((B/A)&#xd7;100)) which is a ratio of an average particle filling factor (B) in the region of 30% of the film thickness on the upper side opposite the support to an average particle filling factor (A) in the entirety of the thin film layer is 90% or less; and a polarizing plate and an image display, using the optical film.

Optical film, polarizing plate and image display using the same

A touch panel comprising: a cellulose film provide with a hard coat layer having a pencil hardness of 2H or more; a polarizing film; a retardation plate; a first transparent conductive film; a second transparent conductive film; and a substrate, in this order, wherein the first and second transparent conductive films are provided so as to face to each other, and the cellulose film, the hard coat layer, the polarizing film, the retardation plate and the first transparent conductive film define a movable substrate.

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Minami-ashigara, Japan

Katsumi Inoue