| 摘要 |
PURPOSE:To provide a liquid crystal display element improved in display contrast and the visual angle characteristic of display colors uniformly over the entire surface of a screen by applying a polymer soln. on one surface of a film substrate, then imparting a difference in shearing force on both surfaces to apply a deformation to a film. CONSTITUTION:This process for production has a stage for applying the polymer soln. on at least one surface of the film substrate consisting of a thermoplastic resin and having light transmittability, then applying the difference in the shearing force on both surfaces to apply the deformation to the film and produces the optically anisotropic element having the optical axis neither in the film plane nor in the normal direction. The optically anisotropic element RF having the optical axis inclined from the normal direction of the liquid crystal cell is arranged between a polarizing plate B and a liquid crystal cell CE. Light is made incident diagonally on the liquid crystal cell CE and the light L2 which is elliptically polarized by transmitting this cell is modulated to the original linearly polarized light by a phase delay action at the time of transmitting the optically anisotropic element RF. The same transmittance is obtd. even at various diagonal incidences. The good liquid crystal display element having no dependency on visual angles is obtd. |
