Fujifilm Corporation

Yasuyuki Sasada

Yujiro Yanai

Hajime Nakayama

Miyoko Hara

Kazuya Hisanaga

Hiroyuki Yoneyama

Hiroaki Sata

Mitsuyoshi Ichihashi

Yasuo Mukunoki

Shigeaki Nimura

Shinya Watanabe

Kenichi Fukuda

Makoto Ishiguro

Takuya Inoue

Daiki Wakizaka

Kunihiro Atsumi

Yoshiaki Hisakado

Shun Nakamura

Yousuke Nishiura

Takako Nishiura, Legal Representative

Mitsuo Osato

Genya Tanaka

Shohei Yamazaki

Provided are a film including a layer A, and a layer B provided on at least one surface of the layer A, in which an elastic modulus of the layer A at 160° C. is 100 MPa to 2,500 MPa, and a value of a difference L−Lbetween a value Lobtained by subtracting a weight residual rate of the layer A at 900° C. from a weight residual rate of the layer A at 440° C. and a value Lobtained by subtracting a weight residual rate of the layer B at 900° C. from a weight residual rate of the layer B at 440° C. is 80% or less.

Film and laminate

A film includes a layer A, and a layer B provided on at least one surface of the layer A, in which a ratio of an elastic modulus of the layer A at 160° C. to an elastic modulus of the layer B at 160° C. is 1.2 or more, and a thermal conductivity of the layer A is 0.05 W/(m·K) or more. A laminate includes a layer A, a layer B, and a metal layer or a metal wire, in this order, in which a ratio of an elastic modulus of the layer A at 160° C. to an elastic modulus of the layer B at 160° C. is 1.2 or more, and a thermal conductivity of the layer A is 0.05 W/(m·K) or more.

Film, laminate, and method of manufacturing the same

Provided are a polymer film having excellent adhesiveness with a substrate, and a laminate using the polymer film. The polymer film includes a layer A and a layer B on at least one surface of the layer A, in which the layer B contains a polymer having a dielectric loss tangent of 0.01 or less or 0.005 or less or a liquid crystal polymer, and a compound having a functional group, and the functional group is at least one group selected from the group consisting of a covalent-bondable group, an ion-bondable group, a hydrogen-bondable group, a dipole-interactable group, and a curing reactive group.

Polymer film and laminate

Provided are a film capable of suppressing a distortion of a metal wire in a case where the film is adhered to the metal wire, and a laminate formed of the film. The film has a dielectric loss tangent of 0.005 or less, and has an elastic modulus of at least one surface at 160° C., which is smaller than an elastic modulus of an inside at 160° C.

An embodiment of the present invention relates to a film including a layer A, and a layer B provided on at least one surface of the layer A, in which a dielectric loss tangent of the film is 0.010 or less, and a ratio of an absorbance of the layer B at a wavelength of 355 nm to an absorbance of the layer A at a wavelength of 355 nm is 0.45 or more and 1.00 or less, and a laminate including a film having a layer A and a layer B, and a metal layer or a metal wire on a B layer side of the film, in which a dielectric loss tangent of the film is 0.010 or less, and a ratio of an absorbance of the layer B at a wavelength of 355 nm to an absorbance of the layer A at a wavelength of 355 nm is 0.45 or more and 1.00 or less.

Provided are a film which includes at least a first resin layer containing aromatic polyester amide, and a second resin layer disposed on the first resin layer, and an elastic modulus of the second resin layer at 160° C. is less than 1.0 GPa.

Film, wiring board, and method for manufacturing wiring board

A wiring board, comprising: wiring patterns that are buried in the wiring board, in which a region positioned between wiring patterns disposed in an in-plane direction of the same plane has an elastic modulus at 140° C. equal to or less than 0.1 MPa, and a dielectric loss tangent is equal to or less than 0.006.

Wiring board and method for manufacturing wiring board

Provided are a polymer film containing a polymer and a filler, in which the polymer film has a phase-separated structure including at least two phases, and all of the at least two phases have an elastic modulus of 0.01 GPa or more; and an application thereof.

A polarizing plate includes: a polarizer and an optical film, in which the optical film is laminated on at least one surface of the polarizer with an adhesive containing at least one or more polymerizable compounds, and the at least one or more polymerizable compounds are not substantially infiltrated into the optical film.

Polarizing plate and method for manufacturing the same

An optical film comprising a first domain of a polymer composition and a second domain disposed inside the first domain, wherein the second domain is a bubble having a morphology anisotropy, and the mean alignment direction of the main chain of the polymer molecule in the first domain differs from the mean direction of the major axis of the second domain, is capable of contributing toward display performance unification and body thickness reduction of an image display device.

Optical film, process of producing the same, and polarizing plate and image displaying device employing the same

A liquid crystal display includes a liquid crystal cell having a liquid crystal layer provided between two glass substrates having a thickness of 0.5 mm or less, polarization plates provided on both surfaces of the liquid crystal cell in which absorption axes of the polarization plates provided on both surfaces of the liquid crystal cell are disposed to be orthogonal with each other, and a back light provided on a rear side of the liquid crystal cell, and a difference (D&#x2212;H) between a contractive force D in an absorption axis direction of the front side polarization plate, and a contractive force H in a transmission axis direction of the rear side polarization plate is 365&#xd7;10 N/m or less.

Liquid crystal display

A polarizer having at least one optical film and at least one polarizing film, wherein the absolute value of the photo-elastic coefficient C of the optical film is 2&#xd7;10Paor more, the optical film has an in-plane direction in which the sound propagation velocity is the maximum, and the angle between the in-plane direction in which the sound propagation velocity through the optical film is the maximum and the direction of the absorption axis of the polarizing film falls within a range of from 0&#xb0; to less than 45&#xb0;, is excellent in working aptitude and can prevent optical unevenness of the liquid-crystal display device accompanied by environmental changes.

Polarizer and liquid-crystal display device

A surface light source unit includes, in the following order: a light source; a light collecting sheet having light collection portions on at least one side of the light collecting sheet; and a light transmissive substrate having a flat portion and recesses on at least one side of the light transmissive substrate.

Light transmissive substrate, method of making transmissive substrate, surface light source unit, polarizing plate, and liquid crystal device

There is provided an optical film having a small size change with a temperature change of a support of a pattern retardation film. An optical film includes: a support comprising a polymer having a moisture absorptivity of 0.5% or more; a first retardation region and a second retardation region, in which birefringence thereof is mutually different; and an optically anisotropic layer in which the first retardation region and the second retardation region are alternately patterned for every one line.

Optical film, polarizing plate and liquid crystal display device

A cellulose acylate film is provided and has a surface where a first in-plane orientation in a portion from 0 to 3 &#x3bc;m in depth from the surface is lower than a second in-plane orientation in a portion from 3 &#x3bc;m to 10 &#x3bc;m in depth from the surface.

Growing community of inventors

Minami-ashigara, Japan

Yasuyuki Sasada