A polymerizable composition containing: a) a polymerizable compound having one or two or more polymerizable groups and satisfying formula (I): Re(450 nm)/Re(550 nm)<1.0 (I); b) at least one photopolymerization initiator selected from the group consisting of alkylphenone-based compounds, acylphosphine oxide-based compounds, and oxime ester-based compounds; and c) a polymerization inhibitor. An optically anisotropic body, a retardation film, an antireflective film, and a liquid crystal display device that are produced using the polymerizable liquid crystal composition. The polymerizable composition is excellent in solubility and has high storage stability, so that no precipitation of crystals etc. occurs. When a film-shaped polymer is produced by polymerizing the above composition, the unevenness of the surface of the coating film is small while the alignment of the liquid crystal is maintained, and high durability is obtained. Therefore, the polymerizable composition is useful.

The present invention provides a liquid crystal composition with which a light absorption anisotropic film excellent in plane shape uniformity with a high alignment degree can be formed, a method of producing same, a light absorption anisotropic film, a laminate, and an image display device. The liquid crystal composition contains a high-molecular weight liquid crystal compound, and a dichroic substance, where the composition is a copolymer containing 90% by mass or more of a repeating unit (1) of Formula (1) and 10% by mass or less of a repeating unit (2) of Formula (2). In Formulae (1) and (2), P1 to P3 represent main chains, L1 to L3 represent a single bond or divalent linking group, P2 to SP3 represent a single bond or spacer group (SP1), M1 to M3 represent mesogenic groups, T1 represents a terminal group, and n and m are integers of 0 or 1. ##STR00001##

Provided is a composition for forming a photo-alignment film that improves a surface state of a liquid crystal layer having excellent liquid crystal alignment properties of the liquid crystal layer provided on a photo-alignment film, and an optical laminate formed of the composition. The composition includes a polymer A which has a repeating unit A1 containing a photo-aligned group and a repeating unit A2 containing a cationically polymerizable group, a polymer B which has a repeating unit B1 containing a cationically polymerizable group and does not contain a photo-aligned group, and at least one acid generator selected from the group consisting of a photoacid generator and a thermal acid generator, in which the polymer B has 90% by mass or greater of a repeating unit, in which a hydrogen bond element of a Hansen solubility parameter is less than 10.0, with respect to all repeating units of the polymer B.

An object of the present invention is to provide an optical film which is excellent in the adhesiveness between a polymer support and a photo alignment film and in which a liquid crystal compound having reverse wavelength dispersibility is uniformly aligned. The optical film is obtained by laminating, in the following order: a polymer support containing an additive; a photo alignment film; and an optically anisotropic film, wherein the optically anisotropic film is formed of a polymerizable liquid crystal composition containing a polymerizable liquid crystal compound having reverse wavelength dispersibility, and an amount of a component derived from the additive of the polymer support, which is contained in a boundary region with the optically anisotropic film in the photo alignment film is 0.10 to 0.50 mass % with respect to a total mass of the photo alignment film.

The present invention relates to compositions comprising a combination of benzothiadiazole and thiadiazoloquinoxaline derivatives, to liquid-crystalline media containing the compositions, and to the use of the compositions and the media in optical, electronic and electro-optical devices, in particular in devices for regulating the passage of energy from an outside space into an inside space, for example in switchable windows.

Described herein are compounds of formula (I), and pharmaceutically acceptable salts, solvates, hydrates, isotopically labeled derivatives and radiolabeled derivative thereof, and pharmaceutical compositions thereof. Also provided are methods and kits involving the inventive compounds or compositions for detecting and imaging Tau aggregates in the brain for detection of Alzheimer's disease (AD) in a subject.

Disclosed is a polymerizable liquid crystal material wherein an amount of a salt represented by the following formula (I) is less than 0.01 parts by mass per 100 parts by mass of a polymerizable liquid crystal compound, and an amount of a nitrogen-containing compound represented by the following formula (II) is 0.01 parts by mass or less per 100 parts by mass of the polymerizable liquid crystal compound. R.sup.1 to R.sup.5 each independently represent a hydrogen atom or a C1-C7 alkyl group, R.sup.6 and R.sup.7 represents a hydrogen atom, and X represents F.sup.−, Br.sup.−, Cl.sup.−, I.sup.−, HSO.sub.4.sup.−, 1/2(HPO.sub.4.sup.2−), H.sub.2PO.sub.4.sup.−, R—C(═O)—O.sup.−, 1/2(.sup.−O—(C═O)—R′—(C═O)—O.sup.−) or R—SO.sub.3.sup.−, where R represents a hydrogen atom or a monovalent hydrocarbon group, and R′ represents a single bond or a divalent hydrocarbon group. ##STR00001##

To suppress a phenomenon where an optical axis of the optically anisotropic layer is tilted when the optically anisotropic layer is produced by using a liquid crystalline compound showing smectic phase as a materials showing a higher level of orderliness. An optically anisotropic layer wherein a polymerizable composition, containing one or more polymerizable rod-like liquid crystal compound showing a smectic phase, is fixed in a state of smectic phase, and a direction of maximum refractive index of the optically anisotropic layer is inclined at 10° or smaller to the surface of the optically anisotropic layer, a method for manufacturing the same, a laminate and a method for manufacturing the same, a polarizing plate, a liquid crystal display device, and an organic EL display device.

A liquid crystal composition is provided containing a first liquid crystal compound represented by formula (1): ##STR00001##
and a second liquid crystal compound represented by formula (2): ##STR00002## Also provided is a method for producing the liquid crystal composition having a desired wavelength dispersion characteristic.

An optically anisotropic multi-layered product including an optically anisotropic layer (Sm), and an optically anisotropic layer (N), wherein: the optically anisotropic layer (Sm) is an optically anisotropic layer that contains a liquid crystal compound (A-Sm) fixed in a state in which a smectic liquid crystal phase is exhibited; the optically anisotropic layer (N) is an optically anisotropic layer that contains a liquid crystal compound (A-N) fixed in a state in which a nematic liquid crystal phase is exhibited; and the optically anisotropic layer (Sm) and the optically anisotropic layer (N) have a common in-plane slow axis direction. A method for producing the optically anisotropic multi-layered product is also provided.