| abstract |
The orientation film (100) comprises a first orientation layer (102) containing a first polyimide (p1) and a second orientation layer (104) containing a second polyimide (p2) and a polymer (po) obtained by polymerization of a polyfunctional monomer. The polyfunctional monomer is represented by general formula (1). P1-A1-(Z1-A2)n-P2 (1) (In general formula (1), P1 and P2 are each independently an acrylate, methacrylate, acrylamide, methacrylamide, vinyl, vinyloxy, or epoxy group; A1 and A2 are each independently a 1,4-phenylene, 1,4-cyclohexane, 2,5-thiophene, or naphthalene-2,6-diyl group; Z1 is a ‑COO‑, ‑OCO-, -O-, or -CONH- group or a single bond; and n is 0, 1, or 2.) |