Dai Nippon Printing Co., Ltd.

Yoshihiro Nishimura

Yukimitsu Iwata

Takashi Kodama

Koichi Mikami

Gen Furui

Kazuhiro Watanabe

Tomoyuki Horio

Mariko Hayashi

Yuya Inomata

Mayu Youki

Hironori Kamiyama

Akiko Gotou

Nobuo Naitou

Shinnichi Katou

The claimed invention provides an antistatic hard coat film that is extremely excellent in white muddiness resistance and antistatic properties and sufficiently prevents an interference fringe pattern. The claimed invention provides an antistatic hard coat film including a triacetyl cellulose substrate and a hard coat layer formed on the triacetyl cellulose substrate, the hard coat layer including an antistatic agent, a (meth)acrylate resin, and a polymer of a (meth)acrylate monomer, the triacetyl cellulose substrate including a permeation layer formed by permeation of the (meth)acrylate monomer from the hard coat layer side of the interface toward the opposite side of the hard coat layer, the antistatic hard coat film satisfying Formulas (1), (2), and (3):3 &#x3bc;m&#x2264;&#x2264;18 &#x3bc;m&#x2003;&#x2003;Formula (1)0.3&#x2264;0.9&#x2003;&#x2003;Formula (2)2 &#x3bc;m&#x2264;&#x2264;11 &#x3bc;m&#x2003;&#x2003;Formula (3)where T denotes the total thickness (&#x3bc;m) of the permeation layer and the hard coat layer, and t denotes the thickness (&#x3bc;m) of the permeation layer.

Antistatic hardcoat film, process for producing same, polarizer, and image display device

The claimed invention provides an antireflection film including a light-transmitting substrate, a hard coat layer, and a low-refractive-index layer, the hard coat layer and the low-refractive-index layer being formed on the light-transmitting substrate, the low-refractive-index layer including a (meth)acrylic resin, hollow silica particles, reactive silica particles, and two kinds of antifouling agents, the hollow silica particles having an average particle size of 40 to 80 nm and a blending ratio to the (meth)acrylic resin, represented by a ratio: Amount of hollow silica particles/Amount of (meth)acrylic resin, of 0.9 to 1.4, the amount of the reactive silica particles being 5 to 60 parts by mass based on 100 parts by mass of the (meth) acrylic resin, the antifouling agents including an antifouling agent that contains a fluorine compound and an antifouling agent that contains a fluoro-silicone compound.

Antireflection film, method for producing antireflection film, polarizer and image display device

An anti-dazzling laminate made of an optical laminate including a light transparent base material and an anti-dazzling layer having a concavoconvex shape provided on the material. The laminate simultaneously satisfies formulae: 0&#x2266;G&#x2266;15 (I), 0.1&#x2266;Hs&#x2266;5.0 (II), 0.3&#x2266;Rz&#x2266;1.8 (III) wherein Grepresents a scintillation value which is a standard deviation of a variation in brightness distribution at a resolution of 100 ppi measured on the surface of the laminate; Hs represents the surface haze value of the laminate; and Rz represents the average roughness of the concavoconvex shape of the anti-dazzling layer.

Glare-proofing optical laminate

An optical laminate produced by a process for producing an anti-dazzling laminate comprising a light transparent base material and an anti-dazzling layer provided on the light transparent base material. The process includes providing the light transparent base material and forming the anti-dazzling layer having a concavoconvex shape on the light transparent base material, wherein the concavoconvex shape of the anti-dazzling layer satisfies the following requirements: Sm is not less than 100 &#x3bc;m and not more than 600 &#x3bc;m, &#x3b8;a is not less than 0.1 degree and not more than 1.2 degrees, and Rz is more than 0.2 &#x3bc;m and not more than 1 &#x3bc;m, wherein Sm represents the average spacing of concavoconvexes or profile irregularities in the anti-dazzling layer; &#x3b8;a represents the average inclination angle of the concavoconvexes or profile irregularities; and Rz represents the average roughness of the concavoconvexes or profile irregularities.

Method and apparatus for producing optical multilayer body

An optical layered body including a light-transmitting substrate and an antiglare layer provided on the light-transmitting substrate. The antiglare layer has a surface roughness on the outermost surface. In the optical layered body, a mean spacing of tops of local peak of profile S is 0.045 mm or more and 0.10 mm or less determined by the procedure disclosed in the specification. The optical layered body can attain properties such as an antiglare property, scintillation prevention and black color reproducibility such as gloss blackness simultaneously.

Optical layered body comprising a light-transmitting substrate and antiglare layer, polarizer and image display device

A method for producing an optical layered body which can attain properties such as an antiglare property, scintillation prevention and black color reproducibility such as gloss blackness simultaneously, and a production apparatus of the optical body are provided. The method includes forming an antiglare layer having a surface roughness on the light-transmitting substrate, wherein with respect to the surface roughness, when denoting a mean spacing of profile irregularities of the surface of the optical layered body by Sm, a mean inclination angle of profile irregularities by &#x3b8;a, and mean roughness of the surface roughness by Rz, Sm is 50 &#x3bc;m or more and less than 100 &#x3bc;m, &#x3b8;a is 0.1&#xb0; or more and 1.0&#xb0; or less, and Rz is more than 0.2 &#x3bc;m and 1.0 &#x3bc;m or less.

Method for producing optical layered body, production apparatus of optical layered body, optical layered body, polarizer and image display device

An optical laminate is provided which has anti-dazzling properties and can realize excellent glare preventive properties and black reproducibility (gradation rendering of black at low brightness). The optical laminate includes a light transparent base material and an anti-dazzling layer or a light diffusion layer provided on the light transparent base material, wherein the outermost surface of the anti-dazzling layer or light diffusion layer has a concavoconvex surface. The anti-dazzling layer satisfies the requirements that Sm is not less than 100 &#x3bc;m and not more than 600 &#x3bc;m, &#x3b8;a is not less than 0.1 degree and not more than 1.2 degrees, and Rz is more than 0.2 &#x3bc;m and not more than 1 &#x3bc;m, wherein Sm represents the average spacing of concavoconvexes in the anti-dazzling layer, &#x3b8;a represents the average inclination angle of the concavoconvexes, and Rz represents the average roughness of the concavoconvexes.

Optical multilayer body, polarization plate using same, and image display

Disclosed is an anti-dazzling laminate which has anti-dazzling properties and can realize excellent glare preventive properties and black color reproducibility (gradation rendering of black color at low brightness). The anti-dazzling laminate is an optical laminate comprises a light transparent base material and an anti-dazzling layer provided on the light transparent base material, wherein the outermost surface of the anti-dazzling layer has a concavoconvex shape, and the optical laminate satisfies the following requirements: Ha is more than 0% and less than 90%, Hi is more than 0% and less than 90%, and Hi/Ha is not less than 0.8 and less than 1.0, wherein Ha represents the whole haze value of the optical laminate; and Hi represents the internal haze value of the optical laminate.

Anti-dazzling optical laminate

An anti-dazzling laminate which is an optical laminate comprising a light transparent base material and an anti-dazzling layer provided on the light transparent base material. The outermost surface of the anti-dazzling layer has a concavoconvex shape, and the optical laminate satisfies the following requirements: Ha is more than 0% and less than 8%, Hi is more than 0% and not more than 6%, and Hi/Ha is not less than 0.013 and less than 0.8, wherein Ha represents the whole haze value of the optical laminate; and Hi represents the internal haze value of the optical laminate.

A front filter for a plasma display that is mainly used as a TV display. The front filter has an anti-glare function which is capable of effectively preventing reflection concurrently with achieving black color reproduction, and a functional layer for imparting a function required of an image display device such as a light absorbing function and/or an adhesion function. This front filter has an anti-glare layer having a concavo-convex shape on an outermost surface thereof, a polyester film and a functional layer. The anti-glare layer is disposed on the observer-side surface of the front filter; at least one functional layer is disposed on the display device side.

Front filter for plasma display and plasma display

An anti-dazzling laminate formed from an optical laminate having a light transparent base material and an anti-dazzling layer provided on the light transparent base material. The optical laminate is produced by providing the light transparent base material and forming the anti-dazzling layer having a concavoconvex shape on the light transparent base material, wherein the concavoconvex shape of the anti-dazzling layer satisfies the following requirements: Sm is not less than 100 &#x3bc;m and not more than 600 &#x3bc;m, &#x3b8;a is not less than 0.1 degree and not more than 1.2 degrees, and Rz is more than 0.2 &#x3bc;m and not more than 1 &#x3bc;m, wherein Sm represents the average spacing of concavoconvexes (or profile irregularities) in the anti-dazzling layer; &#x3b8;a represents the average inclination angle of the concavoconvexes (or profile irregularities); and Rz represents the average roughness of the concavoconvexes (or profile irregularities).

Anti-glare optical multilayer body

The present invention provides an anti-dazzling laminate which has anti-dazzling properties and can realize excellent glare preventive properties and black color reproducibility, such as gradation rendering of black color at low brightness. The optical laminate comprises a light transparent base material and an anti-dazzling layer provided on the light transparent base material. The outermost surface of the anti-dazzling layer has a concavoconvex surface, and the average spacing S determined by calculation based on data obtained by measuring a roughness curve of a concavoconvex shape of the anti-dazzling layer is not less than 0.04 mm and not more than 0.30 mm.

Optical multilayer body

An optical laminate having a light transparent base material and an anti-dazzling layer provided on the light transparent base material, wherein the outermost surface of the anti-dazzling layer has a concavoconvex surface. The concavoconvex shape simultaneously satisfies the following formulae (I) 1.2&#x2266;&#x3b8;a&#x2266;2.5 and (II) 0.004&#x2266;&#x3c8;&#x2266;0.18, wherein &#x3b8;a represents the average inclination angle of the concavoconvex part; Rz represents the average roughness of concavoconvexes; Sm represents the average spacing of the concavoconvexes; and &#x3c8; represents the ratio, between Rz and Sm, defined by &#x3c8;=Rz/Sm. The optical laminate has an internal haze value of not less than 0% and not more than 50%, and the optical laminate has a surface haze value of not less than 0.5% and not more than 4.5%.

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Okayama, Japan

Yoshihiro Nishimura