Fujifilm Corporation

Ryuji Saneto

Katsufumi Ohmuro

Yuuichi Fukushige

Katsumi Inoue

Akira Yamamoto

Shinichi Kanna

Jun Watanabe

Michio Nagai

Makoto Ishiguro

Hideki Kaneiwa

Shuntaro Ibuki

Masato Nagura

Naohiro Matsunaga

Megumi Sekiguchi

Tetsuya Asakura

Hiroshi Ishizuka

Yuta Fukushima

Yukito Saitoh

Masaaki Suzuki

Hiroyuki Yoneyama

Junichi Ito

Yujiro Yanai

Yoji Ito

Naoyoshi Yamada

Hirofumi Toyama

Fumitake Mitobe

Tokuju Oikawa

Nobuhiko Ichihara

Miho Asahi

Shusuke Arita

Shigekazu Suzuki

Yoshinori Maeda

Ryo Satake

Jun Noguchi

Akira Maruyama

Hiroyuki Kaihoko

Isao Fujiwara

Kenta Watanabe

Nobutaka Iwahashi

Humitake Mitobe

Takashi Tamada

Hitoshi Namikawa

Yasushi Tanabe

Yohei Hamachi

Mitsuo Osato

Chihiro Masuda

Takuji Okura

Yutaro Mitsumori

An object of present invention is to provide an optical laminate that can be used for a reflective circular polarizer with little occurrence of a ghost in a case of being used in a virtual reality display device, an electronic finder, or the like; a laminated optical film including the reflective circular polarizer; an optical article including the optical laminate; and a virtual reality display device including the optical article. The optical laminate of the present invention includes two or more laminated reflective layers, in which the laminated reflective layer includes one reflective layer A that includes at least one or more cholesteric liquid crystal layers formed of a first liquid crystal compound which substantially consists of a rod-like liquid crystal compound and that does not include a cholesteric liquid crystal layer formed of a second liquid crystal compound which substantially consists of a disk-like liquid crystal compound, and one reflective layer B that includes at least one or more cholesteric liquid crystal layers formed of the second liquid crystal compound which substantially consists of a disk-like liquid crystal compound and that does not include a cholesteric liquid crystal layer formed of the first liquid crystal compound which substantially consists of a rod-like liquid crystal compound, and predetermined requirements are satisfied.

Optical laminate, laminated optical film, optical article, and virtual reality display device

Provided are a reflective sheet including a cholesteric liquid crystal layer and having excellent reflection wavelength range, diffuse reflectivity, reflectivity, hardness, and scratch resistance; and a transfer film for a reflective sheet that is used for the reflective sheet. The reflective sheet includes a substrate, an adhesive layer, a cholesteric liquid crystal layer, and a hard coat layer in this order, in which in a cross-section of the cholesteric liquid crystal layer observed, at least a part of bright portions and dark portions has a flapping structure, the cholesteric liquid crystal layer has a pitch gradient structure in which a helical pitch changes in a thickness direction, and the helical pitch on the adhesive layer side is larger than that on the hard coat layer side.

Reflective sheet and transfer film for reflective sheet

Provided is a reflective sheet that includes a reflective layer having a wide reflection wavelength range, excellent diffusion reflection properties, and inconspicuous defects. The reflective sheet includes a plurality of reflective layers that are laminated, the reflective layers being obtained by immobilizing a cholesteric liquid crystalline phase, in a cross-section of the reflective layer observed with a scanning electron microscope, at least a part of bright portions and dark portions derived from the cholesteric liquid crystalline phase has a flapping structure, a helical pitch in one or more reflective layers changes in a thickness direction, and a thickness of a reflective layer that is formed on a surface other than a surface of the reflective layer is less than those of other reflective layers.

Reflective sheet

A laminate includes a substrate; and a layer (a) containing particles forming a specific uneven shape, the number of particles present on the surface of the layer (a) is 6.3 to 20 per 1 &#x3bc;m, and a heat shrinkage rate of the laminate in a case of being heated for one hour at a glass transition temperature of the substrate+10&#xb0; C. is 20% or more and less than 70%. An antireflection product has a three-dimensional curved surface having a curvature radius of 1 to 1,000 mm, and has a specific uneven shape formed of particles on the three-dimensional curved surface, the number of metal oxide particles present on the three-dimensional curved surface is 9 to 40 per 1 &#x3bc;m, and a difference between a maximum value and a minimum value of reflectivities is less than 1.2%.

Laminate, antireflection product having three-dimensional curved surface, and method of manufacturing antireflection product

A light diffraction film includes a transparent substrate; and a light diffraction layer containing a binder resin and particles, in which an average primary particle diameter of the particles is 1 &#x3bc;m to 10 &#x3bc;m, and a coverage of a surface of the transparent substrate covered with the particles is 70% to 90%.

Light diffraction film and wearable display device

An antireflection film including: a plastic substrate; and an antireflection layer, where the antireflection layer includes a metal oxide particle and a binder resin, the antireflection layer has a moth eye structure including an uneven shape formed by the metal oxide particle, a total light transmittance of the antireflection film where light is incident from a side of the antireflection layer opposite the plastic substrate is 88% or more, and where transmittances of light at wavelengths of 480 nm and 580 nm of the antireflection film where the light is incident from a side of the antireflection layer opposite the plastic substrate are respectively Tand T, T&#x2212;T&#x2264;3.5% is satisfied, and a method of manufacturing the antireflection film, and an antireflection product, a polarizing plate, an image display device, a module, and a liquid crystal display device with a touch panel, containing the antireflection film.

Antireflection film, antireflection product, polarizing plate, image display device, module, liquid crystal display device with touch panel, and method of manufacturing antireflection film

A liquid crystal display device includes a liquid crystal panel including at least a liquid crystal cell and a polarizing plate; and a backlight including at least a light source, in which the polarizing plate includes a polarizer and at least one sheet of protective film, the protective film included in the polarizing plate is positioned closest to the backlight side in the liquid crystal panel, and the protective film positioned closest to the backlight side in the liquid crystal panel is an organic solvent-soluble resin film in which an apparent shear strength measured at a surface on the backlight side is 106 MPa or greater and an apparent shear strength measured at a surface on the polarizer side is 101 MPa or less.

Liquid crystal display device

A liquid crystal display device has a liquid crystal panel including a liquid crystal cell and a polarizing plate; and a backlight unit including a light source. An outermost surface of the liquid crystal panel on the backlight unit side is a surface of a protective film included in the polarizing plate, an outermost surface of the backlight unit on the liquid crystal panel side is a surface of a diffusion member, and where an arithmetic mean roughness measured on an outermost surface of the liquid crystal panel on the backlight unit side is Ra1, a pencil hardness is P1, an arithmetic mean roughness measured on an outermost surface of the backlight unit on the liquid crystal panel side is Ra2, and a pencil hardness is P2, Expression 1: 33 nm&#x3c;Ra1&#x3c;135 nm, Expression 2: Ra2&#x3c;15 nm, and Expression 3: P1&#x3c;P2 are satisfied.

One embodiment of the present invention relates to a hard coat film including a first layer in which a polymer of a polymerizable composition containing at least one polyfunctional polymerizable compound having two or more polymerizable groups in one molecule is detected as a main component and an organic solvent-soluble resin is not detected by composition analysis using a RAMAN spectroscopy; and a second layer adjacent to the first layer, in which an organic solvent-soluble resin and a polymer of a polymerizable composition containing at least one polyfunctional polymerizable compound having two or more polymerizable groups in one molecule are detected by the composition analysis, and a thickness is greater than 15 &#x3bc;m. Further, the present invention relates to a polarizing plate, an image display device, and a method for producing the hard coat film.

Hard coat film, polarizing plate including the same, image display device, and method for producing hard coat film

A liquid-crystal display device having a backlight unit emitting unpolarized blue light, a light conversion member, a polarization separating member, a backlight-side polarizer, a liquid crystal cell, and a display-side polarizing plate wherein the polarization separating member separates the unpolarized blue light into blue transmitted light and blue reflected light which are linearly polarized in vibration directions that are orthogonal to each other, and transmits some of light in a wavelength range each of 500 nm to 600 nm and 600 nm to 650 nm, the light conversion member includes a fluorescent material that, due to blue light entering the light conversion member, emits green light which is linearly-polarized light and red light which is linearly-polarized light; and a transmission axis of the backlight-side polarizer is parallel to vibration directions of the green and red light, is improved in terms of front surface luminance and color reproduction region.

Liquid-crystal display device

A liquid crystal display device improved in front surface luminance, having a backlight unit, a light conversion member, a polarization separating member, a liquid crystal cell, and a display-side polarizer; the backlight unit includes an unpolarized blue light source and a reflection member that converts circularly-polarized to unpolarized blue light and reflects same; the light conversion member includes a circularly polarized luminescence fluorescent material that emits green and red lights which are circularly-polarized; the polarization separating member includes a reflection polarizer that separates the unpolarized blue light into blue transmitted light that is right- or left-circularly-polarized light and blue reflected light that is the other circularly-polarized light and a &#x3bb;/4 plate that converts the blue transmitted light, the green and red lights, which are circularly-polarized, to linearly-polarized lights; and an absorption axis of the display-side polarizer is parallel to vibration directions of the blue, green and red lights, which are linearly-polarized.

A liquid crystal display device, in which a backlight unit, a light conversion member, a selective reflection member, a liquid crystal cell, and a display-side polarizer are disposed in this order, the backlight unit includes a light source that emits unpolarized light having a light emission central wavelength in a wavelength range of 300 nm to lower than 430 nm, the selective reflection member reflects 60% to 100% of the unpolarized light entering the selective reflection member and transmits at least some of light in a wavelength of higher than 430 nm to 650 nm, and the light conversion member includes an aligned fluorescent material that emits blue, green and red light which are linearly polarized in a vibration direction parallel to an absorption axis of the display-side polarizer, is improved in terms of the front surface luminance.

A thin optical film with high hygrothermal durability and high front contrast, includes cellulose acylate whose degree of substitution of acyl group is from 2.0 to 2.6 and at least one optical performance developer, wherein the cellulose acylate has a mannose content of 0.2% by mass or less, and the optical film has a thickness of 40 &#x3bc;m or thinner and satisfies:&#xd7;1.1&#x2003;&#x2003;Formula I&#xd7;1.1&#x2003;&#x2003;Formula IIwherein, A denotes the depthwise region ranging from one surface up to 2 &#x3bc;m depth of the optical film, and B denotes the depthwise region ranging from the other surface up to 2 &#x3bc;m depth, and Mand Mrepresent the mannose content in regions A and B; Cand Crepresent the content of the optical performance developer in regions A and B; and M, M, Cand Care given in % by mass.

Optical film, polarizing plate, and liquid crystal display device

Provided is a transparent laminate which does not have a problem in which a transparent electrode pattern is visually recognized, a capacitance type input device having the transparent laminate, and an image display device provided with the capacitance type input device as a constituent element. The transparent laminate of the invention includes a region where a transparent substrate, a first transparent film having a refractive index of 1.6 to 1.78 and a film thickness of 55 nm to 110 nm, a transparent electrode pattern, and a second transparent film having a refractive index of 1.6 to 1.78 and a film thickness of 55 nm to 110 nm are laminated in this order in a plane.

Transparent laminate, capacitance type input device, and image display device

Provided is a transparent laminate which does not have a problem in which a transparent electrode pattern is visually recognized, a capacitance type input device having the transparent laminate, and an image display device provided with the capacitance type input device as a constituent element. The transparent laminate of the invention includes a region where a transparent substrate, a first transparent film which contains a metal oxide and has a film thickness of 55 nm to 110 nm, a transparent electrode pattern, and a second transparent film which contains 5 mass % to 80 mass % of metal oxide particles and has a film thickness of 55 nm to 110 nm are laminated in this order in a plane.

Growing community of inventors

Kanagawa, Japan

Ryuji Saneto