Patent ID: 7087273

Claim:
A method of producing a liquid crystal film, the method comprising: (a) forming a layer of a polymerizable liquid crystalline composition on an alignable film in an aligned liquid crystal orientation; and (b) polymerizing the layer such that the aligned orientation is fixed; wherein the polymerizable liquid crystalline composition comprises an oxetane compound represented by the formula Z 1 -(CH 2 ) n -L 1 -P 1 -L 2 -P 2 -L 3 -P 3 -L 4 -(CH 2 ) m -Z 2 (1) wherein Z 1 and Z 2 are each independently a group represented by any one of formulas (2), (3) and (4) below, L 1 , L 2 , L 3 , and L 4 each independently indicate direct bond or are a group represented by any of —O—, —O—CO—, or —CO—O—, P 1 and P 2 are each independently a group represented by formula (5) below, and P 3 indicates direct bond or is a group represented by formula (5) below, n and m are each independently an integer of 2 to 6; wherein X is selected from the group consisting of hydrogen, methyl, or halogen.