Nitto-denko Corporation

Megachips Corporation

Nitto Denko Corproation

Ikuo Kawamoto

Hironori Motomura

Miki Shiraogawa

Seiji Umemoto

Naoki Takahashi

Shunsuke Shuto

Satoru Kawahara

Hideyuki Yonezawa

Nobuyuki Kozonoi

Tadayuki Kameyama

Kazuya Hada

Tsuyoshi Chiba

Shunsuke Shutou

Tomohiro Takeyasu

Kentarou Takeda

Takashi Kamijo

Hideo Sugawara

Mitsuru Honjo

Takashi Matsutani

Sadahiro Nakanishi

Yuki Haraguchi

Motoki Haishi

Yuuji Saiki

Yasufumi Miyake

Toshihiko Sugimoto

Masatoshi Tomonaga

Motoyasu Tanaka

Masahiro Hata

Akira Arima

Masato Bitou

Takashi Kamijou

Misaki Sabae

Masayasu Yamamoto

Hitoshi Morita

An information reception device is provided with: operation surface which is adjusted to produce a characteristic index vibration by an object contact; a storage device stores candidate information (candidate information is related with the index vibration) which serves as a candidate of input information; a microphone which acquires observation information according to observation of the actual vibration arising in the surrounding environment; and a CPU. The CPU (selecting part) judges whether or not the index vibration exists in the observation information acquired. When the CPU judges that the index vibration exists, the CPU selects the candidate information which is related with the index vibration as the input information.

Information reception system, recording medium, and information input method

A translucent conductive film includes a film substrate, a metal wiring layer provided as a pattern, and a colored layer. The film substrate has a plurality of protrusions on a surface at a side where the metal wiring layer is provided. The metal wiring layer has a line width of greater than 5 &#x3bc;m but less than 8 &#x3bc;m, and the metal wiring layer having a thickness of greater than or equal to 0.1 &#x3bc;m but less than 0.5 &#x3bc;m. The colored layer is provided on a main surface of the metal wiring layer at a viewing side but not on a side surface of the metal wiring layer.

Translucent conductive film

To provide a touch senor having an improved productivity, and also achieving high reliability since there is no occurrence of a wire break in a metal wiring and having good usability since the metal wiring layer is less likely to be visually recognized. A touch senor of the present invention includes a film substrate () having a plurality of protrusions on both surfaces (), () thereof, a metal wiring layer () provided over one surface () of the film substrate, a circular polarizer film () provided at a viewing side A of film substrate (), and a metal wiring layer () provided over the other surface () of the film substrate (). The metal wiring layer () has a line width of greater than 5 &#x3bc;m but less than or equal to 8 &#x3bc;m, and a thickness of greater than or equal to 0.1 &#x3bc;m but less than 0.5 &#x3bc;m.

Touch sensor

A method for producing a laminated optical film that allows three-dimensional images to be reproduced, which is preferably used in a large image display apparatus. One embodiment of the method includes laminating a polarizing plate and a &#x3bb;/4 plate and forming a &#x3bb;/2 layer partially on the &#x3bb;/4 plate. The polarizing plate and the &#x3bb;/4 plate are laminated such that an angle between an absorption axis of a polarizer of the polarizing plate and a slow axis of the &#x3bb;/4 plate is substantially 45&#xb0;, and the &#x3bb;/2 layer is formed such that an angle between the absorption axis of the polarizer and a slow axis of the &#x3bb;/2 layer is substantially 45&#xb0;.

Method of producing a laminated optical film

Provided are a laminated optical film capable of enhancing a contrast ratio in an oblique direction remarkably while enhancing viewing angle characteristics when being used in a liquid crystal display apparatus or the like, and a liquid crystal panel and a liquid crystal display apparatus using the laminated optical film. The laminated optical film of the present invention includes a polarizer, a first optical compensation layer, and a second optical compensation layer in the stated order, in which the first optical compensation layer has a refractive index profile of nx&#x3e;nz&#x3e;ny and is placed so that a slow axis direction thereof is substantially parallel to or substantially perpendicular to an absorption axis direction of the polarizer, and the second optical compensation layer converts linearly polarized light into circularly polarized light or circularly polarized light into linearly polarized light in a visible light region.

Laminated optical film, and liquid crystal panel and liquid crystal display apparatus using the laminated optical film

An object of the present invention is to provide an optical film capable of contributing to reduction in thickness, preventing uneven heating, and favorably preventing light leak in black display, and an image display apparatus using such an optical film. An optical film of the present invention includes a polarizer, a first optical compensation layer having a refractive index profile of nx&#x3e;ny=nz, and a second optical compensation layer having a refractive index profile of nx&#x3e;ny&#x3e;nz in the stated order. In the optical film, an angle formed between an absorption axis of the polarizer and a slow axis of the first optical compensation layer is +17&#xb0; to +27&#xb0; or &#x2212;17&#xb0; to &#x2212;27&#xb0;, an angle formed between the absorption axis of the polarizer and a slow axis of the second optical compensation layer is +85&#xb0; to +95&#xb0;, and an Nz coefficient of the second optical compensation layer is 1.2&#x2266;Nz&#x2266;2.

Optical film, method of producing the same, and image display apparatus using the optical film

An optical compensation layer-attached polarizing plate including a polarizing plate, an optical compensation layer and another optical compensation layer that are laminated in this order, wherein the optical compensation layer has the relation nx&#x3e;ny=nz, including a resin with a photoelastic coefficient absolute value of at most 2.0&#xd7;10m/N, and has an in-plane retardation (nx&#x2212;ny)din the range of 200 nm to 300 nm, the optical compensation layer has the relation nx&#x3e;ny&#x3e;nz, including a resin with a photoelastic coefficient absolute value of at most 2.0&#xd7;10m/N, and has an in-plane retardation (nx&#x2212;ny)din the range of 90 nm to 160 nm, a slow axis of the optical compensation layer makes an angle of 10&#xb0; to 30&#xb0; with an absorption axis of the polarizing plate, and a slow axis of the optical compensation layer makes an angle of 75&#xb0; to 95&#xb0; with the absorption axis of the polarizing plate.

Optical compensation layer-attached polarizing plate, liquid crystal panel, liquid crystal display, image display, and method for producing optical compensation layer-attached polarizing plate

A twist-obliquely oriented liquid crystal layer and a twist-obliquely oriented film is formed by forming an alignment layer, on a substrate, containing at least one selected from a glassy macromolecule and a silane coupling agent, performing a rubbing treatment on the alignment layer, and then applying a liquid crystal coating solution containing a chiral agent and a photopolymerizable liquid crystal composition.

Method for producing film with twisted tilted alignment, film with twisted tilted alignment, and image display using same

A method for manufacturing liquid crystal alignment film of the present invention comprises the steps of: (1) aligning a transparent substrate film by rubbing; (2) laminating a surface protective sheet having a release force of 0.5 N/50 mm or less onto an aligned face of the transparent substrate; (3) coating a liquid crystal material comprising a liquid crystal monomer and/or a liquid crystal polymer onto the aligned face after releasing the surface protective sheet; and (4) fixing the liquid crystal material after aligning the liquid crystal material. The method can make satisfactorily align the liquid crystal material on the substrate.

Method for manufacturing liquid crystal alignment film, liquid crystal alignment film, optical film and image viewing display

A polarizing plate with optical compensation layers that performs a wide viewing angle compensation with respect to a liquid crystal cell, allows circularly polarized light to be obtained over a wide range of light wavelengths, contributes to the reduction in thickness, prevents thermal irregularity from occurring, and can effectively prevent light leakage from occurring in a black display. The polarizing plate includes a polarizer, a first optical compensation layer, and a second optical compensation layer that are stacked together in this order. The first optical compensation layer is formed of a liquid crystal compound and has a relationship of nx&#x3e;ny=nz and an in-plane retardation Reof 100 to 170 nm. The second optical compensation layer has a relationship of nx=ny&#x3e;nz and a thickness direction retardation Rthof 30 to 400 nm. The angle formed between the absorption axis of the polarizer and the slow axis of the first optical compensation layer is in the range of 'plus' or 'minus' 25 to 65 degrees.

Polarizing plate with optical compensation layer, method of producing the same, and liquid crystal panel, liquid crystal display, and image display including the same

The present invention provides a method of producing an elliptically polarizing plate including the steps of: forming a first birefringent layer on a surface of a transparent protective film; laminating a polarizer on a surface of the transparent protective film; forming a second birefringent layer on a surface of the first birefringent layer; and forming a third birefringent layer on a surface of the second birefringent layer. The first birefringent layer is arranged on the opposite side against the polarizer with respect to the transparent protective film. The step of forming the first birefringent layer includes the steps of: applying a liquid crystal material onto a substrate subjected to an alignment treatment; treating the applied liquid crystal material, so as to form the first birefringent layer on the substrate; and transferring the first birefringent layer onto a surface of the transparent protective film.

Method of producing elliptically polarizing plate and image display using the elliptically polarizing plate

An obliquely oriented liquid crystal layer and an obliquely oriented film is provided by performing a rubbing treatment on a homeotropically orienting substrate and, after the rubbing treatment, applying a liquid crystal coating solution containing at least one of a homeotropically orienting liquid crystal composition and a photopolymerizable liquid crystal composition on the homeotropically orienting substrate.

Method for producing film with tilted alignment, film with tilted alignment, and image display using same

A retardation plate characterized by being obtained by laminating a homeotropic liquid-crystal film formed from a homeotropic liquid-crystal polymer of the side chain type or from a homeotropic liquid-crystalline composition comprising the side chain type liquid-crystal polymer and a photopolymerizable liquid-crystal compound to a stretched film having a retardation function. In the retardation plate, the retardation in the thickness direction can be regulated to a value in a wide range.

Retardation plate, process for producing the same, and optical film

The present invention provides a polarizing member constituted by, at least, a cholesteric liquid-crystal layer (), a quarter-wave plate (), and an optical rotatory layer (). By the polarizing member according to the present invention, the plane of polarization of light linearly polarized by a combination of the cholesteric liquid-crystal layer and the quarter-wave plate are rotated by the optical rotatory layer so that the linearly polarized light is supplied to an absorption type polarizer () with good coincidence between the plane of polarization of the linearly polarized light and the axis of polarization of the absorption type polarizer. Thus, there can be obtained a liquid-crystal display device which has luminance improved by prevention of absorption loss and is excellent in display quality. That is, in a liquid-crystal display device improved in luminance by use of a cholesteric liquid-crystal layer, coloring can be suppressed evenly in all obliquely viewing azimuths while good viewing characteristic can be achieved in a frontal direction.

Liquid crystal display device having a polarization member that includes a cholesteric liquid crystal layer and solid optical rotatory film

A liquid crystal orientation film, which is formed of a liquid crystal polymer, having a satisfactory orientation property is obtained by a method for manufacturing a liquid crystal orientation film, comprising the steps; coating a polymerizable liquid crystal monomer on an orientation substrate; orienting said polymerizable liquid crystal monomer in a state of liquid crystal; polymerizing said polymerizable liquid crystal monomer to form a liquid crystal orientation layer (1); coating a liquid crystal polymer on said liquid crystal orientation layer (1); and orienting said liquid crystal polymer in a state of liquid crystal to form a liquid crystal orientation layer (2).

Growing community of inventors

Ibaraki, Japan

Ikuo Kawamoto