Patent ID: 9212241
Filing Date: 2015-12-15
Classification: B29D,B29K,C08F,C08J,G02B

Abstract:
1. An optical film comprising: a polymer comprising a repeating unit A comprising a repeating unit represented by the following Chemical Formulas 1 to 3, or a combination thereof; and a repeating unit B derived from a monomer comprising an unsaturated bond copolymerizable with the repeating unit A, wherein the optical film has a short wavelength dispersion of an in-plane phase-difference value (R wherein, in Chemical Formula 1, R R wherein the alicyclic group, aromatic group, or heterocyclic group is present singularly; at least two of the alicyclic group, aromatic group, or heterocyclic group are linked to provide a condensed ring; or at least two of the alicyclic group, aromatic group, or heterocyclic group are linked via a single bond, —O—, —S—, —C(═O)—, —CH(OH)—, —S(═O) wherein, in Chemical Formula 2, R wherein, in Chemical Formula 3, R R wherein the alicyclic group, aromatic group, or heterocyclic group is present singularly; at least two of the alicyclic group, aromatic group, or heterocyclic group are linked to provide a condensed ring; or at least two of the alicyclic group, aromatic group, or heterocyclic group are linked via a single bond, —O—, —S—, —C(═O)—, —CH(OH)—, —S(═O)