LIGHT MODULATING MATERIAL AND LIGHT MODULATING METHOD

摘要

A light modulating material comprising at least one kind of dichroic dye having a substituent represented by the following Formula (1) and at least one kind of host liquid crystal between a pair of electrodes, and changing the transmittance of incident light. In the formula (1), Het is oxygen atom or sulfur atom; B¹ and B² each independently represent an arylene group, a heteroarylene group or a bivalent cyclic aliphatic hydrocarbon group; Q¹ represents a bivalent linking group; C¹ represents an alkyl group, a cycloalkyl group, an alkoxy group, an alkoxycarbonyl group, an acyl group, or an acyloxy group; j represents 0 or 1; p, q and r each independently represent an integer from 0 to 5; n represents an integer from 1 to 3; (p + r) n is an integer from 3 to 10. Formula (1): - (Het)_j- {(B¹)_p - (Q¹)_q - (B²)_r}_n - C¹