| abstract |
PROBLEM TO BE SOLVED: To provide a retardation film that contributes to improvement of viewing angle characteristics of a liquid crystal display device. Means discotic liquid crystal compound represented by the following general formula (I) (R 1 and R 2 are each independently a hydrogen atom or a substituted or unsubstituted, aliphatic hydrocarbon group, an aryl group, a heteroaryl group; R 3 is A boronic acid compound represented by a substituted or unsubstituted aliphatic hydrocarbon group, aryl group or heteroaryl group), and a repeating unit having a predetermined hydrophilic group and a repeating unit derived from a fluoroaliphatic group-containing monomer A retardation film having an optically anisotropic layer formed from a liquid crystal composition containing at least one kind of a copolymer containing a unit or a fluorine-containing compound having a predetermined hydrophilic group, In the isotropic layer, the retardation film is in a state in which molecules of the discotic liquid crystal compound are substantially vertically aligned. [Chemical 1] [Selection figure] None |