Minolta Company, Ltd.

Konica Minolta, Inc.

Konica-minolta Holdings, Inc.

Akihito Hisamitsu

Hideaki Ueda

Takeshi Kitahora

Nobuyuki Kobayashi

Shinichi Suzuki

Keiichi Furukawa

Mitsuyo Matsumoto

Yasuo Taima

Yoshihisa Terasaka

Masako Iwamatsu

Fumie Motoori

Akihisa Nakajima

Noboru Ueda

Takeo Arai

Takeshi Hakii

Noriyuki Kokeguchi

Masakazu Okada

Tomoo Izumi

Osamu Ishige

Kaori Ono

Kenji Nishiguchi

Shoji Kotani

Taro Konuma

Shota Hatazawa

Provided is means that enables a hard coat layer to resist cracking and to have improved scratch resistance in a laminated film including a substrate, a surfactant-containing layer on one surface of the substrate, and the hard coat layer on the other surface of the substrate. The laminated film includes a substrate, a surfactant-containing layer that is disposed on one surface of the substrate and contains a surfactant, and a hard coat layer disposed on the other surface of the substrate, wherein the hard coat layer contains 0.001 to 3% by weight of a (meth)acrylic modified silicone compound.

Laminated film and method of producing the same

An optical reflective film which includes at least one unit formed by laminating a high refractive index layer and a low refractive index layer on a substrate and is characterized in that at least either of the high refractive index layer or the low refractive index layer contains two or more kinds of polyvinyl alcohols having different degrees of saponification, the high refractive index layer and the low refractive index layer contain polyvinyl alcohols having approximately the same degree of saponification, and an average degree of saponification of polyvinyl alcohols contained in the high refractive index layer and an average degree of saponification of polyvinyl alcohols contained in the low refractive index layer are different from each other.

Optical reflective film and optical reflector using the same

The near-infrared reflective film is a lamination unit including: a high refractive layer containing a first metal oxide particle and a first water-soluble polymer, a low refractive layer containing a second metal oxide particle and a second water-soluble polymer, and a mixed layer that is located between the high refractive layer and the low refractive layer and contains the first metal oxide particle, the second metal oxide particle, and a third water-soluble polymer. The refractive index of the low refractive layer is smaller than the refractive index of the high refractive layer by 0.1 or more. The first metal oxide particle and the second metal oxide particle are different metal oxides.

Near-infrared reflective film, method for producing same, and near-infrared reflector provided with near-infrared reflective film

Provided are an optical reflective film which is a system that permits the employment of a water-based coating method in view of environmental conservation and which, even in a case where the optical reflective film is produced by simultaneous multilayer coating with high production efficiency, exhibits excellent light reflecting properties at a desired wavelength and a low haze due to the suppression of an interlaminar mixing level and interfacial disorder; and an optical reflector using the same. An optical reflective film including at least one unit obtained by laminating a high refractive index layer and a low refractive index layer on a substrate, wherein the high refractive index layer and the low refractive index layer each contain one or more of polyvinyl alcohols, and when a polyvinyl alcohol having the highest content in the high refractive index layer is referred to as a 'polyvinyl alcohol (A)' and a polyvinyl alcohol having the highest content in the low refractive index layer is referred to as a 'polyvinyl alcohol (B)', a degree of saponification of the polyvinyl alcohol (A) is different from a degree of saponification of the polyvinyl alcohol (B).

The present invention provides a near-infrared reflective film and a near-infrared reflector, which can be used over large areas and are flexible, and have low haze and high visible light transmittance. The near-infrared reflective film comprises at least one unit composed of a high refractive index layer and low refractive index layer on a substrate, and is characterized in that the refractive index difference between an adjacent high refractive index layer and low refractive index layer is at least 0.1, and said high refractive index layer contains at least one type of compound (A) selected from: 1) a rutile-type titanium oxide having a volume-average particle diameter of not more than 100 nm; 2) a water-soluble polymer; and 3) the following group of compounds. Group of compounds: a carboxyl group-containing compound, hydroxamic acids, pyridine derivatives.

Near-infrared reflective film, method for manufacturing near-infrared reflective film, and near-infrared reflector

An electrochromic compound represented by Formula (1), 

Electrochromic compound, electrode, and display element

A liquid crystal composition including at least two kinds of gelling agents and a liquid crystal. The liquid crystal shows a liquid crystal phase at room temperature. A liquid crystal display device using the liquid crystal composition also is provided.

Liquid crystal composition containing at least two kinds of gelling agents and liquid crystal display device using the same

Disclosed is a liquid crystal display apparatus comprising a pair of substrates and a liquid crystal layer provided between the substrates, the liquid crystal layer containing a liquid crystal composition that exhibits a cholesteric phase. The liquid crystal composition contains a mixture of a chiral material and nematic liquid crystal. The liquid crystal display layer is configured to satisfies the following conditions:

Liquid crystal display element

A liquid crystal display apparatus includes a first liquid crystal layer having first liquid crystal exhibiting a cholesteric phase at a room temperature, and being tuned to selectively reflect light of a wavelength &lgr; within a visible wavelength range; and a second liquid crystal layer disposed on the first liquid crystal layer, having second liquid crystal exhibiting a cholesteric phase at the room temperature, and being tuned to selectively reflect light of a wavelength &lgr; within the visible wavelength range, wherein a difference between the selective reflection wavelengths &lgr; and &lgr; is in a range from 100 nm to 150 nm.

Two layer liquid crystal display apparatus

Liquid crystal element

An organic electro-luminescence display element comprising at least a positive electrode, an organic luminescent film and a negative electrode, wherein the positive electrode is formed of an electrically conductive film having transparency, the negative electrode is formed of a metal film containing metal having a low work function, and the negative electrode is connected to a power supply lead portion made of a transparent and conductive film.

Organic electro-luminescence display element, finder screen display device, finder and optical device

A chiral nematic liquid crystal composition that exhibits a cholesteric phase, said chiral nematic crystal composition comprising 55 wt % to 90 wt % of a nematic liquid crystal composition that comprises, as main components thereof, a liquid crystal ester compound and a liquid crystal pyrimidine compound, wherein said liquid crystal ester compound does not include a tolan skeleton therein and said liquid crystal pyrimidine compound includes a fluorine atom therein; and 10 wt % to 45 wt % of at least one chiral agent. A liquid crystal light modulating apparatus comprising a pair of substrates at least one of which is transparent; and the chiral nematic liquid crystal composition disposed between the substrates.

Liquid crystal composition and liquid crystal light modulating apparatus

Disclosed is a liquid crystal display element which comprises a pair of substrates and a liquid crystal layer held between the pair of substrates and including liquid crystal that exhibits a cholesteric phase. At least one of the substrates has an orientation film that comprises a polyimide having a mesogenic group therein and has not undergone rubbing.

In liquid crystal display element having cholesteric liquid crystal between substrates, being substantially polymer free, integral value in visible wavelength range of &lcub;exp&minus;&lsqb;2(&lgr;&minus;nP) /&Dgr;n P &rsqb;&rcub;R is 40-60% of integral value in visible wavelength range of function f(&lgr;) representing wavelength-light reflectance spectrum in colored state. In liquid crystal display element having liquid crystal composition between substrates, at least one substrate has functional surface contacting liquid crystal composition, the functional layer being capable of adjusting orientated state of liquid crystal molecules close to substrate and different orientated state of liquid crystal molecules remote from substrate. Chiral nematic liquid crystal, of nematic liquid crystal mixture having refractive index anisotropy of 0.2-0.34 and at least one chiral material, exhibits cholesteric phase at room temperature, has phase transition temperature of 60&deg; C. or higher and positive dielectric constant anisotropy, and wavelength of selectively reflected light is from 480-700 nm.

An organic electroluminescent display element has at least a positive electrode, an organic luminescent film, an electron injection layer and a negative electrode. Each of the positive and negative electrodes is formed of a transparent conductive film, the electron injection layer is formed of a thin transparent film made of a halogenide of an alkali metal or an alkaline earth metal, or an organic metal complex containing an alkali metal or an alkaline earth metal as a metal, and the organic metal complex is at least one complex selected from the group consisting of acetylacetonate complexes, &agr;-nitroso-&bgr;-naphthol complexes, salicylaldoxime complexes, cupferron complexes, benzoinoxime complexes, bipyridine complexes, phenanthroline complexes, crown complexes, proline complexes and benzoylacetone complexes.

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Amagasaki, Japan

Akihito Hisamitsu