Provided is a liquid crystal composition and a use thereof. The liquid crystal composition has a reverse-wavelength dispersion property and excellent high-temperature durability, and the liquid crystal composition can be applied to a retardation layer, a circularly polarizing plate, or a display device, for example, an organic light emitting display device.

Provided are a cured product of a curable composition including a compound represented by General Formula (1), in which a birefringence Δn at a wavelength of 587 nm is 0.00≤Δn≤0.01; an optical member; a lens; a compound represented by General Formula (1); a curable resin composition containing the compound; a cured product; a diffractive optical element; and a multilayer diffractive optical element.

Pol.sup.1-Sp.sup.a-L.sup.1-Ar-L.sup.2-Sp.sup.b-Pol.sup.2  Genera Formula (1) Ar represents an aromatic ring group represented by a specific formula, L.sup.1 and L.sup.2 represent —O—, Sp.sup.a and Sp.sup.b represent a linking group having the shortest atom number of 11 or more and linking Pol and L, Pol.sup.1 and Pol.sup.2 represent a polymerizable group, and in Sp.sup.a and Sp.sup.b, a linking portion to L.sup.1 or L.sup.2 is —CH.sub.2— and a linking portion to Pol.sup.1 or Pol.sup.2 is a carbon atom.

To prevent arcing discharge of a liquid crystal device. Provided is a liquid crystal device including a liquid crystal layer, a first substrate, a second substrate and an insulating film, wherein the liquid crystal layer is arranged between the first substrate and the second substrate, the first substrate includes electrode 1, the second substrate includes electrode 2, the insulating film is arranged between electrode 1 and electrode 2, and the insulating film is a cured product of a thermosetting polymer composition.

Self-aligned liquid crystal materials and structures are disclosed. The structures can exhibit piezoelectric and flexoelectric properties.

An aspect of the present invention relates to a method for producing a cholesteric liquid crystal based shell. The method comprises producing a cholesteric liquid crystal shell, solidifying the cholesteric liquid crystal shell so as to obtain a solid shell and perforating the solid shell. A second aspect of the present invention relates to a cholesteric liquid crystal based solid shell comprising a perforation. Other aspects of the present invention pertain to a coating composition comprising a plurality of cholesteric liquid crystal based solid shells, an item comprising a tag that comprises the cholesteric liquid crystal based solid shells and a method for authenticating the item.

Disclosed are a polymer-stabilized liquid crystal composition and the use thereof. The composition comprises one or two polymerizable compounds represented by general formula I: (I), and further comprises a negative dielectric anisotropy liquid crystal composition, wherein the negative dielectric anisotropy liquid crystal composition has a dielectric anisotropy of Δε≤−1.5; and the added amount of the polymerizable compound(s) represented by general formula I is 0.1-0.5% of the total mass of the negative dielectric anisotropy liquid crystal composition. A polymer film formed after the polymerization of the provided liquid crystal composition containing the polymerizable compound(s) has a very good uniformity, such that the problem of liquid crystal displays having poor display can be improved. Moreover, an alignment film formed after the polymerization of the polymerizable liquid crystal composition has an excellent alignment force, and can improve residual image problems caused by an insufficient alignment force in a PSVA liquid crystal display. The provided liquid crystal composition containing the polymerizable compound(s) can realize an adjustable response speed, and can in turn meet the requirements of different technical process conditions.

##STR00001##

A liquid-crystal (LC) medium containing one or more dyes and one or more polymerizable compounds, its use for optical, electro-optical and electronic purposes, in particular in LC displays, especially in colour LC displays of the PSA (polymer sustained alignment) or SA (self-aligning) mode containing a quantum dot colour filter (QDCF), an LC display of the PSA or SA mode containing the LC medium and containing a QDCF, and to a process of manufacturing the LC display.

Provided are a liquid crystal composition that is capable of forming a light absorption anisotropic film having a low reflectance, and a light absorption anisotropic film, a laminate, and an image display device, each of which is obtained using the liquid crystal composition. The liquid crystal composition contains a side-chain type high-molecular-weight liquid crystalline compound and a dichroic substance, in which the side-chain type high-molecular-weight liquid crystalline compound is a copolymer having a repeating unit M including a mesogenic group and a repeating unit F including a fluorine atom.

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.

Liquid crystal mixtures containing a photoalignment component A) containing a photoreactive mesogen of formula I,

##STR00001## a liquid-crystalline component B) containing one or more nematogenic compounds, and a polymerizable component C) containing one or more polymerizable compounds of formula P,

P.sup.a-Sp.sup.a-(A.sup.p).sub.n2-Sp.sup.b-P.sup.b  P and a method of producing such LC media, the use of such media in LC devices, and LC devices containing such a LC medium, and further a process for the fabrication of such liquid crystal displays and the use of the liquid crystal mixtures for the fabrication of such liquid crystal display.