REFLECTIVE TYPE PRISM USING A PHASE DELAY ELEMENT AND THE MANUFACTURING METHOD THEREOF

摘要

PURPOSE: A reflective prism using phase delay materials is provided to simplify a process through a protection effect of a transparent resin layer in a prism shape. CONSTITUTION: A prism-shaped transparent polymer layer is prepared. A protective polymer film for protecting the polymer layer is prepared. The protective polymer film and a transparent resin layer are rubbed. Double refraction phase delay materials are coated on the prism-shaped transparent polymer layer. The rubbed surface of the polymer film is covered on the transparent polymer layer on which the double refraction phase delay materials are coated. The phase delay material layer coated on the prism-shaped transparent polymer layer is annealed to be well-aligned by the rubbed protective polymer film. [Reference numerals] (AA) Start; (BB) Prepare a prism-shaped transparent polymer layer; (CC) Prepare a protective polymer film; (DD) Rub a prism-shaped transparent resin layer and the protective polymer film facing each other; (EE) Coat the prism-shaped transparent polymer layer with liquid crystal; (FF) Laminate the protective polymer film on the transparent polymer layer with phase delay materials; (GG) Anneal a phase delay material layer; (HH) Harden the phase delay material layer; (II) End