PRODUCTION OF LIQUID CRYSTAL ORIENTED FILM

摘要

PROBLEM TO BE SOLVED: To obtain a process for producing an oriented film having a polarized light irradiation stage of high throughput by irradiating the oriented film with polarized light through a phase mask or hologram element. SOLUTION: The surface of a substrate 1 is coated with transparent electrodes 2 and an oriented film forming compd. 3. The oriented film forming compd. 3 is irradiated with the polarized light emitted from a polarized light source 4, by which the oriented film 7 is formed. An optical system including a slit 5 and a lens 6 is provided with the phase mask 8. The polarized light is enlarged with good uniformity by the phase mask 8, by which the large area simultaneous irradiation is made possible. A similar effect is obtainable even if the hologram element 8 is used in place of the phase mask 8. The oriented film forming compd. 3 is preferably an oriented film forming compd. contg. photosensitive groups. The polarized light is preferably UV light and further preferably UV pulse laser beam.