Abstract: A compound which has a benzoxazinone ring and an aromatic ring that directly bonds to the benzoxazinone ring, and has a mesogenic core substituted by a substituent having a polymerizable functional group is excellent in terms of durability, colorless, and exhibits a high ?n while having an azomethine bond.

Abstract: An agent comprising a substituted aromatic azo compound is capable of making a liquid surface express anisotropy in a simplified manner.

Abstract: The invention relates to a liquid crystal composition comprising two or more species of liquid crystal compounds respectively having a polymerizable group, at least one species of which being a compound represented by formula (I) below, having a content of the compound of from 20% to 80% relative to the total mass of said two or more species of liquid crystal compounds.

Abstract: A color filter for use in a light-emitting display element which emits at least white light, the color filter including a circularly polarizing layer which includes a polarizing layer, the polarizing layer having an orientation layer and a liquid crystal compound layer, wherein the circularly polarizing layer is formed only in an optical path of the white light.

Abstract: A compound represented by formula (I) is disclosed. P1 and P2 represent a polymerizable group; m1 and m2 represent an integer of from 1 to 10, “A” represents a divalent group having a 5- to 18-membered aromatic hydrocarbon ring or a 5- to 18-membered aromatic hetero ring, L3 and L4 represent a C1-10 alkyl group or a C1-10 alkoxy group, k1 and k2 represent an integer of from 0 to 4, X1, X2, X3 and X4 represent —O—, —S—, —NH—, —NR— or —SiR0R00—, n1 and n2 represent 0 or 1, provided that at least one of them is 1; and L1a, L1b, L2a and L2b represent a hydrogen atom, halogen atom, —CN, —NC, —NCO, —NCS, or —OCN, provided that those in which both of X2 and X3 represent —O—, those in which one of X2 and X3 represents —O— and another represents —NH— or —NR— are excluded only when n1 is 1, both of L1a and L1b are hydrogen atoms, n2 is 1, and both of L2a and L2b are hydrogen atoms, or only when n1 is 1, both of L1a and L1b are hydrogen atoms, and n2 is 0.

Abstract: A method of producing a cellulose derivative film, the method comprising: forming a film with a solvent cast method from a dope including a cellulose derivative satisfying following conditions (a) and (b): (a) at least one among three hydroxyl groups included in a glucose unit of cellulose is substituted by a substituent of which a polarizability anisotropy ?? represented as following Expression (1) is 2.5×10?24 cm3 or higher: Expression (1): ??=?x?(?y+?z)/2, wherein ?x, ?y and ?z is as defined in the specification; and (b) when a substitution degree by a substituent of which ?? is 2.5×10?24 cm3 or higher is PA, and a substitution degree by a substituent of which ?? is lower than 2.5×10?24 cm3 is PB, the PA and PB satisfy following Expressions (3) and (4): Expression (3): 2PA+PB>3.0; and Expression (4): PA>0.2.

Abstract: An agent comprising a substituted aromatic azo compound is capable of making a liquid surface express anisotropy in a simplified manner.

Abstract: A polymerizable liquid crystal compound represented by formula (I) is disclosed. R0 and R1 represent a hydrogen atom, or a C1-4 alkyl group, provided that at least one of R0 and R1 represent a C1-4 alkyl group; A0, A1, B0 and B1 represent a single bond, or a divalent linking group having a cyclic structure; X0, X1, Y0 and Y1 represent a single bond, —O—, —S—, —OCO—, —COO—, —OCOO—, —NR2CO—, —CONR2—, —OCONR2—, —NR2COO—, —NR2CONR2—, —C?N— or —N?C—; Q0 and Q1 a single bond or a divalent aliphatic group; Z0 and Z1 represent a hydrogen atom, cyano, halogen atom or polymerizable group; and n and m each independently represent an integer of from 0 to 2.

Abstract: A polymerizable liquid crystal compound represented by formula (I) is disclosed. R0 and R1 represent a hydrogen atom, or C1-4 alkyl; L0 and L1 represent a hydrogen atom, or C1-4 alkyl group; A0 and A1 represent a divalent linking group having a 5- to 12-membered cyclic structure; B0 and B1 represent a single bond or a divalent linking group having a 5- to 12-membered cyclic structure; D0 and D1 represent —O—, —S—, or —NR2—; X0 and X1 represent a hydrogen atom, acyl group or cyano; Y0 and Y1 represent a single bond or a divalent group; Q0 and Q1 represent a C1-20 divalent aliphatic group; Z0 and Z1 represent a hydrogen atom, cyano, halogen atom or polymerizable group; and n and m each independently represent an integer of from 0 to 2.

Abstract: An optically anisotropic film comprising at least one species of liquid crystal compound which exhibits a nematic phase or a smectic phase, the liquid crystal phase showing birefringence ?n(?) at wavelength ? which satisfies the numerical expression (1) below is disclosed.

Abstract: A compound of formula (1): wherein A1 and A2 are —O—, —NR—, —S—, or —CO—, in which R is a hydrogen atom or substituent; Z is one or two atoms selected from a carbon atom or a non-metal atom of Group 14, 15 or 16 in the Periodic Table, and forms a five- or six-membered ring with the C—C?C—C or C?C—C?C; R1, R2, and R3 each are a substituent; m is an integer of 0 to 4; L1 and L2 are a single bond or divalent linking group; X is a non-metal atom of Group 14, 15 or 16 in the Periodic Table, and may have a hydrogen atom or R4; and at least one of R, R1, R2, R3, and R4 is substituted with a polymerizable group; a liquid crystal composition, an optical film, a retardation sheet, a polarizing plate, and a liquid crystal display.

Abstract: A color filter for use in a light-emitting display element which emits at least white light, the color filter including a circularly polarizing layer which includes a polarizing layer, the polarizing layer having an orientation layer and a liquid crystal compound layer, wherein the circularly polarizing layer is formed only in an optical path of the white light.

Abstract: To provide an infrared-light reflective plate having improved selective reflectivity characteristics, there is provided an infrared-light reflective plate reflects an infrared-light of equal to or longer than 700 nm including a substrate, and, on at least one of surfaces of the substrate, at least four light-reflective layers, X1, X2, X3 and X4, formed of a fixed cholesteric liquid crystal phase, and disposed in this order from the substrate, wherein the reflection center wavelengths of the light-reflective layers X1 and X2 are same with each other and are ?1 (nm), and the two layers reflect circularly-polarized light in opposite directions; the reflection center wavelengths of the light-reflective layers X3 and X4 are same with each other and are ?2 (nm), and the two layers reflect circularly-polarized light in opposite directions; and ?1<?2 is satisfied.

Abstract: A process stably produces a light reflective film with plural light reflective layers formed of a fixed cholesteric liquid crystal phase, having high transparency and excellent light-reflective characteristics. The process of preparing a light reflective film having at least two light reflective layers formed of a fixed cholesteric liquid crystal phase includes first allowing a curable liquid crystal composition to form a cholesteric liquid crystal phase on a first light reflective layer formed of a fixed cholesteric liquid crystal phase, then carrying out a curing reaction of the curable liquid crystal composition under an irradiation of an ultraviolet light to fix the cholesteric liquid-crystal phase, thereby to form a second light reflective layer. In the second step, the ultraviolet light is irradiated to the curable liquid crystal composition through a member capable of lowering at least the intensity of the ultraviolet light with a wavelength of 340 nm or shorter.

Abstract: The invention relates to a polarizing plate comprising at least a polarizing layer having a K value as defined by the following expression of from 0.25 to 0.75; K=(kx?kz)/(kx?ky) wherein axes which are orthogonal to each other in a plane of the polarizing layer are an x-axis and a y-axis; an axis which is orthogonal to an x-y axis plane is a z-axis; and kx, ky and kz are an absorption coefficient along the x-axis, y-axis and z-axis directions, respectively.

Abstract: To provide a liquid crystal display device in which the transmitted light is inhibited not only in the front direction but also in oblique directions in the black state.

Abstract: An optical compensation film comprising a light absorbing layer capable of absorbing at least light of wavelength ? nm in the visible light region is disclosed. The light absorbing layer has absorption anisotropy, light absorption coefficient kz(?) in the direction normal to the surface of layer (in the direction of z-axis), with respect to light of wavelength ? nm in the visible light region, being larger than in-plane (x-y plane) light absorption coefficients kx(?) and ky(?); and the light absorbing layer has the larger degree of absorption anisotropy at the light of longer wavelength. A liquid crystal display device employing the film is also disclosed.

Abstract: A novel liquid crystal display device is disclosed. The liquid crystal display device comprises a first substrate, a second substrate, liquid crystal held between the first substrate and the second substrate, patterned layers divided into fine areas, disposed on the first substrate, comprising at least a patterned color filter layer and a patterned first optically anisotropic layer laminated in the direction of the normal line of the substrate, and a barrier wall disposed at a boundary portion of the adjacent fine areas of the patterned layers.

Abstract: The present invention relates to an optical compensation film comprising a light absorbing layer and a retardation layer, wherein the light absorbing layer shows absorption anisotropy in the plane (x-y plane) thereof with respect to light of wavelength ? nm in the visible light region and a degree of polarization P of 0.986 or smaller, and the in-plane absorption axis of the light absorbing layer and the in-plane slow axis of the retardation layer are orthogonal to each other.

Abstract: A liquid crystal display device comprising a pair of substrates, at least one polarizing film provided outside the pair of substrates, a liquid crystal cell having a red color filter, a green color filter and a blue color filter provided inside the pair of substrates, a first retardation film compensating for light of a wavelength or wavelengths corresponding to a color or colors of any one or two of the three color filters, and a second retardation film compensating for light of a wavelength that is not compensated for by the first retardation film.