abstract |
An object of the present invention is to provide a retardation film having high retardation expression and good mechanical strength and durability. The retardation film of the present invention contains a cellulose derivative and at least one compound represented by the following general formula (1). (In the general formula (1), R 1 and R 2 each independently represents an alkyl group, a cycloalkyl group, an aryl group or a heterocyclic group; X 1 represents a single bond, —NR 4 —, —O— or X 2 represents a single bond, —NR 5 —, —NR 5 — (C═O) —, —O— or —S—; R 4 and R 5 each independently represents hydrogen; Represents an atom, an alkyl group, a cycloalkyl group, an aryl group or a heterocyclic group; R 3 represents a substituent; n represents an integer of 0 to 4; and when n is 2 or more, a plurality of R 3 are They may be the same or different, and adjacent R 3 may be bonded to each other to form a ring) [Chemical 1] |