Liquid crystal film and liquid crystal display device equipped with same

A liquid crystal film obtained by fixing an aligned structure of a liquid crystal material containing at least a side chain polymeric liquid crystalline substance obtained by copolymerizing the (meth)acrylic portion of a (meth)acrylic compound having an oxetanyl group represented by formula (1) below with another (meth)acrylic compound and a difunctional low molecular weight liquid crystalline substance having two oxetanyl groups represented by formula (2):

• wherein R1 is hydrogen or methyl;
• R2, R3, and R4 are each independently selected from the group consisting of hydrogen, methyl,and ethyl;
• L1, L2, L3, and L4 are each independently selected from the group consisting of a single bond, —O—, —O—CO—, and —CO—O—;
• M1 and M2 are each independently represented by a formula selected from the group consisting of formulas (3) , (4) and (5) below;
• and l, m, n, and o are each independently an integer from 0 to 10:
• —P1-L5-P2-L6-P3— (3)
• —P1-L5-P3— (4)
• —P3— (5)
• wherein P1 and P2 are each independently a group selected from the group consisting of formulas (6) below;
• P3 is a group selected from the group consisting of formulas (7) below;
• and L5 and L6 are each independently selected from the group consisting of a single bond, —CH═CH—, —C≡C—, —O—, —O—CO— and CO—O—: