Mask and optical filter manufacturing apparatus including the same

摘要

A mask and an optical filter manufacturing apparatus having the same are provided. The optical filter manufacturing apparatus includes a roll used in a roll-to-roll process, a base film wound around the roll, a light source that generates light for exposure, a polarizing plate that is installed at an emission side of the light source and polarizes light generated from the light source, and a mask that causes a pattern to be formed on the base film and includes a plurality of guide slits that are opened to have a predetermined thickness and a predetermined width. According to the present invention, the entire surface of the base film can be irradiated with a uniform light quantity. Thus, a pattern can be uniformly formed on the base film, the quality of a product can be improved, and the characteristics of the base film can be accurately realized.

主权项

1. An optical filter manufacturing apparatus, comprising:
a roll used in a roll-to-roll process; a base film wound around the roll; a light source that generates light for exposure; a polarizing plate that is installed at an emission side of the light source and polarizes light generated from the light source; and a mask that causes a pattern to be formed on the base film and includes a plurality of guide slits that are opened to have a predetermined thickness and a predetermined width, wherein surfaces of the mask and the base film facing each other are curved surfaces, wherein the width of the guide slit is the same as a unit pixel width of a stereoscopic video display device, and wherein the guide slit is designed to satisfy the following equation:
t≧5a where t represents the thickness of the guide slit, a represents an interval between the mask and the base film, and 0