| abstract |
PROBLEM TO BE SOLVED: To provide an optical phase difference element manufacturing method having an optically anisotropic layer having a highly precise and complicated orientation pattern, easy to manufacture and excellent in practicality. An optical retardation element having an alignment film (12, 14, 16) and an optically anisotropic layer (13, 15, 17) on a support (11), the alignment film (12). 14, 16) contains at least one compound having a photoreactive group, and the optically anisotropic layer 13, 15, 17) has at least three kinds of regions having different fast axes or slow axes. It is a phase difference element. [Selection] Figure 1 |