Zeon Corporation

Toppan Printing Co., Ltd.

Hodogaya Chemical Co., Ltd.

Kazuhiro Osato

Masashi Aimatsu

Yuji Kubo

Godai Fukunaga

Takao Taguchi

Sosuke Akao

Hironobu Suda

Yuki Yasu

Kei Sakamoto

Masakazu Saito

Takao Kobayashi

Takayuki Tsukada

Hiromasa Hashimoto

Kazuki Takagi

Jiayi Shan

Fuminori Munekane

An optically anisotropic layered body including a first optically anisotropic layer and a second optically anisotropic layer, wherein the first optically anisotropic layer satisfies the following formula (1), the second optically anisotropic layer satisfies the following formula (2), and the optically anisotropic layered body satisfies the following formulae (3) and (4):1≥1>1  Formula (1),2<2≤2  Formula (2),(450)<(550)<(650)  Formula (3), and0<<1.0  Formula (4), wherein nx1, ny1, nz1, nx2, ny2, nz2, Re(450), Re(550), Re(650) and NZ are as defined in the Specification.

Optical anisotropic layered body, polarizing plate, and image display device

A phase difference plate includes a phase difference plate P1 and a phase difference plate P2. An in-plane slow axis of the phase difference plate P1 is orthogonal to an in-plane slow axis of the phase difference plate P2. The phase difference plate P2 includes a layer of a liquid crystal material oriented in an in-plane direction. An in-plane retardation ReP2(λ) at a wavelength A nm of the phase difference plate Psatisfies the following formulae (e1) and (e2): {Re2 (400)−Re2(550)}/{Re2(550)−Re2(700)}<2.90 (e1), and Re2(400)/Re2(700)>1.13 (e2). An in-plane retardation ReP1(λ) of the phase difference plate P1 at a wavelength λ nm and the in-plane retardation ReP2(λ) of the phase difference plate P2 at the wavelength λ nm satisfy the following formulae (e4) and (e5): ReP1(550)>ReP2(550) (e4), and ReP1(400)/ReP1(700)<ReP2(400)/ReP2(700) (e5).

Multilayer phase difference plate, polarizing plate, and image display device

An optically anisotropic layered body including a first optically anisotropic layer and a second optically anisotropic layer, wherein the first optically anisotropic layer satisfies 220 nm&#x3c;Re1(590)&#x3c;330 nm, Re1(450)/Re1(550)&#x2264;1.0, Re1(650)/Re1(550)&#x2265;1.0, and 0.95&#x3c;NZ1&#x3c;2.00, and the second optically anisotropic layer satisfies 110 nm&#x3c;Re2(590)&#x3c;165 nm, Re2(450)/Re2(550)&#x2264;1.0, Re2(650)/Re2(550)&#x2265;1.0, and &#x2212;1.5&#x2264;NZ2&#x2264;0.00.

Optically anisotropic laminate, circularly polarizing plate and image display device

A liquid crystal display device includes, in this order from a light source side: a first polarizer; a liquid crystal cell in which an azimuth orientation direction of a liquid crystal substance is altered by an electric field parallel to a display surface; and a second polarizer. Absorption axes of the first and second polarizers are disposed in directions orthogonal to each other. The absorption axis of the first polarizer and an orientation axis of molecules of the liquid crystal substance are disposed in parallel to each other. The device further includes: a first substrate layer between the liquid crystal cell and the first polarizer; and no substrate layer or a second substrate layer as only one layer between the liquid crystal cell and the second polarizer. An in-plane direction of an optical axis of the first substrate layer is parallel to the absorption axis of the first polarizer.

Liquid crystal display device

An optically anisotropic layered body including a first optically anisotropic layer and a second optically anisotropic layer, wherein each of refractive indices of the second optically anisotropic layer, in-plane retardations of the first optically anisotropic layer, thickness direction retardations of the second optically anisotropic layer, in-plane retardations of the optically anisotropic layered body, NZ factors of the optically anisotropic layered body, and thickness direction retardations Rth of the optically anisotropic layered body satisfies specific relationships.

Optically anisotropic laminate, polarizing plate, and image display device

A film sensor member for disposing on a visually recognizing side of a linear polarizer in an image display device including the linear polarizer, the member including a transparent electroconductive layer, a &#x3bb;/4 plate, and a &#x3bb;/2 plate in this order from the visually recognizing side, wherein the &#x3bb;/4 plate is formed of a first thermoplastic resin containing an amorphous polymer having a glass transition temperature of 150&#xb0; C. or higher or a crystallizable polymer having a melting point of 250&#xb0; C. or higher, the &#x3bb;/2 plate includes, in this order, a first outer layer formed of a second thermoplastic resin, an intermediate layer formed of a third thermoplastic resin containing an ultraviolet absorber, and a second outer layer formed of a fourth thermoplastic resin, and the &#x3bb;/2 plate has an NZ factor of 1.1 to 3.0.

Film sensor member and method for manufacturing same, circularly polarizing plate and method for manufacturing same, and image display device

A circularly polarizing plate including a polarizing film, a &#x3bb;/2 plate having a slow axis in a direction forming an angle of 22.5&#xb0;&#xb1;10&#xb0; relative to an absorption axis of the polarizing film, a &#x3bb;/4 plate having a slow axis in a direction forming an angle of 90&#xb0;&#xb1;20&#xb0; relative to the absorption axis of the polarizing film, in this order, wherein the &#x3bb;/2 plate and the &#x3bb;/4 plate have different wavelength dispersions, an NZ factor of the &#x3bb;/2 plate is 1.00&#xb1;0.05, and an NZ factor of the &#x3bb;/4 plate is 0.00&#xb1;0.05; a method for producing the same, and a method for using the same.

Circularly polarizing plate, method for producing same, broadband lambda/4 plate, organic electroluminescent display device, and liquid crystal display device

A retardation substrate is provided, which includes a substrate and an optically anisotropic solidified liquid crystal layer which is supported by the substrate and formed as a continuous film made from a same material. The solidified liquid crystal layer comprises first to third regions each having two sub-regions which are a sub-region A and a sub-region B, an in-plane birefringence of theA sub-region is larger than that of theA sub-region, the in-plane birefringence of theA sub-region is smaller than that of theA sub-region, and an in-plane birefringence of theB sub-region is the same as that of theB sub-region, smaller than that of theA sub-region and larger than that of theA sub-region.

Retardation substrate, semi-transparent liquid crystal display, and method for manufacturing retardation substrate

A liquid crystal display device may include a first substrate; a second substrate; a first polarizing plate on the first substrate; a second polarizing plate arranged on the second substrate, and so that a direction of an absorption axis of the second polarizing plate being perpendicular to a direction of an absorption axis of the first polarizing plate; a liquid crystal layer arranged between the first substrate and the second substrate; a color filter layer arranged between the liquid crystal layer and the first or the second substrate, the color filter layer having a plurality of pixels of two or more colors. The retardation thin film has in-plane birefringence index satisfying 0.75&#x2266;&#x394;n[fr]/&#x3bb;d[fr]&#x2266;1.35 for a region corresponding to a reflection part of a pixel and satisfying &#x394;n[t]&#x3c;1.2 &#xd7;10for a region corresponding to a transmission part of a pixel.

Liquid crystal display device and method for manufacturing the same

Disclosed is a carbon fibrous structure which comprises a granular part and 2-20 pieces of carbon fibers each of which has an outside diameter of 15-100 nm and which are extend outwardly from the granular part, wherein the granular part is produced in a growth process of the carbon fibers, wherein the size of granular part is 1.3 or more of times larger than the outside diameter of the carbon fibers, and wherein the mean length of the carbon fibers is not more than 20 &#x3bc;m. The carbon fibrous structure improves the physical properties of the matrix, such as electric, mechanical, or thermal properties, while maintaining the other properties of the matrix, even when added at a small amount.

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Tokyo, Japan

Kazuhiro Osato