| abstract |
The present invention provides an optical film for controlling polarization, which is useful in the optical field such as a display and optoelectronics. An optical film having an optically anisotropic layer formed by irradiating a photosensitive thin film with polarized or non-polarized radiation. Here, the film in which the photosensitive thin film contains a polymer having at least one structure selected from the group consisting of structures represented by the following (1) to (3). -P1-CR1 = CR2-CO-Q1 -... (1), P2-CR3 = CR4-CO-Q2 -... (2), -P3-CR5 = CR6-CO-Q3 ... (3) ), Where P1, P3, Q1, and Q2 are each independently a divalent organic group having an aromatic ring, and P2, Q3 are each independently a monovalent organic group having an aromatic ring. And R1 to R6 are each independently a hydrogen atom or an alkyl group. [Selection figure] None |