OPTICAL FILTER

摘要

PURPOSE: An optical filter is provided to implement a 3D image. CONSTITUTION: An optical filter includes an orientation layer (101) and a liquid crystal layer (102). The orientation layer includes an unevenness formed by a convex unit (1011). The convex unit has a width from 0.5 micrometer to 3.5 micrometer, a pitch from 0.5micrometer to 9.5micrometer, and a height from 0.1micrometer to 1.2micrometer. The convex unit formed on the orientation layer is formed into a stripe shape. The liquid crystal layer is formed on the unevenness and includes a first and a second areas having different delay properties.