Abstract:
An alignment composition an alignment composition includes an alignment polymer and a reactive mesogen. The alignment polymer includes a polyimide backbone and a vertical alignment side chain combined with the polyimide backbone. The reactive mesogen may be represented by the following Chemical Formula 1. M5-M1-M2-M3-M4 In Chemical Formula 1, M1 represents a divalent organic group including an aromatic ring group. M2 represents M3 represents a single bond, —O—, —O—(CH2)a—O—, or —(CH2)a—O—, wherein “a” represents an integer of 1 to 20. M4 represents an alkenyl group having a carbon number of 2 to 20 and including an unsaturated carbon bond as an end group, an alkynyl group having a carbon number of 2 to 20 and including an unsaturated carbon bond as an end group, an alkenylcarbonyl group having a carbon number of 3 to 20 and including an unsaturated carbon bond as an end group, an alkenylcarbonyloxy group having a carbon number of 3 to 20 and including an unsaturated carbon bond as an end group, a an oxotetrahydrofuryl group having —(C═CH2)— substituted for at least one —CH2—, or an epoxy group. M5 represents -M2-M3-M4 or -M3-M4.
Abstract:
A composition for aligning includes a macromolecular compound and a reactive mesogen. The macromolecular compound is formed by a condensation polymerization reaction of a dianhydride monomer, and a diamine monomer including a photo reactive group. Thus, the composition for aligning includes the reactive mesogen, so that the reactive mesogen is not included in a liquid crystal layer.