Abstract: A polarizing element, containing: a transparent support; a light absorption anisotropic layer formed of a dichroic dye composition; and a transparent resin cured layer, with the layers being laminated in this order on the support, and with the composition containing at least one dichroic dye of formula (I) which has nematic mesomorphism but containing no liquid crystalline achromatic compound: wherein R1 to R4 are a hydrogen atom or a substituent; R5 and R6 are a hydrogen atom or an alkyl group; L1 represents —N?N—, —CH?N—, —N?CH—, —C(?O)O—, —OC(?O)— or —CH?CH—; A1 represents a phenyl, naphthyl or aromatic heterocyclic group; B1 represents a divalent aromatic hydrocarbon or divalent aromatic heterocyclic group; and n is an integer from 1 to 5.

Abstract: A liquid crystalline composition, having a liquid crystalline dichroic azo dye that is represented by formula (I) and has an expression temperature of the nematic phase of 150° C. to 300° C. in a temperature elevating process, and at least one liquid crystalline dichroic azo dye, wherein an expression temperature of the nematic phase of the liquid crystalline composition is 120° C. or higher in a temperature elevating process: wherein Ar1 and Ar3 each independently represent a substituted or unsubstituted, aromatic hydrocarbon ring group or aromatic heterocyclic group; Ar2 is a divalent substituted or unsubstituted aromatic hydrocarbon group or a divalent substituted or unsubstituted aromatic heterocyclic group; n represents an integer of 1 or more; and when n is an integer of 2 or more, Ar2s may be the same as or different from each other.

Abstract: A polarizing element, containing: a transparent support; a light absorption anisotropic layer formed of a dichroic dye composition; and a transparent resin cured layer, with the layers being laminated in this order on the support, and with the composition containing at least one dichroic dye of formula (I) which has nematic mesomorphism but containing no liquid crystalline achromatic compound: wherein R1 to R4 are a hydrogen atom or a substituent; R5 and R6 are a hydrogen atom or an alkyl group; L1 represents —N?N—, —CH?N—, —N?CH—, —C(?O)O—, —OC(?O)— or —CH?CH—; A1 represents a phenyl, naphthyl or aromatic heterocyclic group; B1 represents a divalent aromatic hydrocarbon or divalent aromatic heterocyclic group; and n is an integer from 1 to 5.