Provided are a display device including a resin containing a repeating unit represented by chemical formula (1), a resin composition comprising the resin, and a pixel separation unit formed of the resin composition, in which the display device is a display device including a first electrode formed on a substrate, a pixel separation unit formed on the first electrode to partially expose the first electrode, and a second electrode installed to face the first electrode, and the pixel separation unit has an absorbance of 0.5/μm or more at a wavelength of 550 nm.

The present invention relates to an actuator using a photo-responsive shape-changing construct, the actuator comprising: a 1-1 polymer film and a 1-2 polymer film, configured to undergo a bending deformation in response to a light irradiation; a first restricting member provided between the 1-1 polymer film and the 1-2 polymer film so as to allow the 1-1 polymer film and the 1-2 polymer film to be connected to each other; and a rotation member configured to rotate as the rotation member, at least in part, is pushed by an end of the 1-1 polymer film along with the bending deformation of the 1-1 polymer film.

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.

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A preparation method for a temperature-responsive light reflecting coating is provided comprising: forming a main chain cholesteric phase liquid crystal polymer by a polymerization reaction between an acrylate liquid crystal and an amine, and coating the main chain cholesteric phase liquid crystal polymer on a substrate to form a light reflecting coating, wherein the acrylate comprises a chiral acrylate, and the reflection wavelength of the reflecting coating is determined by the content of the chiral acrylate liquid crystal and the polymerization degree of the main chain cholesteric phase liquid crystal polymer formed. The method may further comprise cross-linking the main chain cholesteric phase liquid crystal polymer to obtain a polymer network so as to form a solid coating. The present disclosure further provides a temperature-responsive light reflecting coating. The preparation of the main chain cholesteric phase liquid crystal polymer of the present disclosure requires only a simple thermally-driven polymerization reaction.

The present invention relates to an optical code including a film of a charge-transfer material, as well as methods thereof. Described herein are optical codes having anisotropic and/or isotropic regions within the film, which can be provided in a pattern that serves as an optical code.

Provided is a liquid crystal alignment agent that makes it possible to obtain a liquid crystal alignment film having a superior balance among solvent resistance, liquid crystal alignment properties, and voltage holding ratio. The liquid crystal alignment agent contains a polymer [P] including: at least one ring structure of an oxetane ring and an oxirane ring; (B) a functional group that reacts with at least one of the oxetane ring and the oxirane ring by heating; and (C) an optically aligning group.

A highly thermally conductive epoxy compound, and a composition, a material for a semiconductor package, a molded product, an electric and electronic device, and a semiconductor package, each including the highly thermally conductive epoxy compound. The epoxy compound is represented by Chemical Formula 1 below and has at least one mesogenic naphthalene unit.

E.sub.1-M.sub.1-L.sub.1-M.sub.2-L.sub.2-M.sub.3-E.sub.2  Chemical Formula 1

In Chemical Formula 1, at least one of M.sub.1, M.sub.2, or M.sub.3, which are mesogenic units, is a naphthalene unit. M.sub.1, M.sub.2, M.sub.3, L.sub.1, L.sub.2, and E.sub.1 and E.sub.2 are as defined in the detailed description.

A non-linear side chain liquid crystal polyorganosiloxane differs from previous side chain liquid crystal polyorganosiloxanes. A method for preparing the non-linear side chain liquid crystal polyorganosiloxane involves hydrosilylation reaction of a SiH rich intermediate with an aliphatically unsaturated mesogenic compound. A liquid crystal composition containing the non-linear side chain liquid crystal polyorganosiloxane is useful in dynamic scattering mode electro-optic device for various applications.

The present invention relates to an optical code including a film of a charge-transfer material, as well as methods thereof. Described herein are optical codes having anisotropic and/or isotropic regions within the film, which can be provided in a pattern that serves as an optical code.

A preparation method for a temperature-responsive light reflecting coating is provided comprising: forming a main chain cholesteric phase liquid crystal polymer by a polymerization reaction between an acrylate liquid crystal and an amine, and coating the main chain cholesteric phase liquid crystal polymer on a substrate to form a light reflecting coating, wherein the acrylate comprises a chiral acrylate, and the reflection wavelength of the reflecting coating is determined by the content of the chiral acrylate liquid crystal and the polymerization degree of the main chain cholesteric phase liquid crystal polymer formed. The method may further comprise cross-linking the main chain cholesteric phase liquid crystal polymer to obtain a polymer network so as to form a solid coating. The present disclosure further provides a temperature-responsive light reflecting coating. The preparation of the main chain cholesteric phase liquid crystal polymer of the present disclosure requires only a simple thermally-driven polymerization reaction.