| abstract |
To provide a liquid crystal display element exhibiting high display contrast. A pair of opposed substrates, at least one of which is a transparent electrode, sandwiched between the pair of substrates, Host liquid crystal and - (Het) m - {( B 1) p - (Q 1) q - (B 2) r} and a liquid crystal layer containing a dichroic dye having a substituent represented by n -C 1, the host liquid crystal angle 60 ° to 90 ° with respect to the opposing surface of the substrate It is a guest-host type liquid crystal display element formed by orientation. In the formula, Het is a sulfur atom or oxygen atom, B 1 and B 2 are each a divalent aryl group, heteroaryl group or cyclic aliphatic hydrocarbon group, Q 1 is a divalent linking group, and C 1 is Each represents a substituent such as an alkyl group. m is 0 or 1, p, q and r are each 0 to 5, n is 1 to 3, but (p + r) × n is 3 to 1 0. |