Patent ID: 9158052
Filing Date: 2015-10-13
Classification: G02B,G03F

Abstract:
1. A method of manufacturing a wire grid polarizer, comprising: providing a transparent substrate; depositing a resin layer on the transparent substrate; patterning the resin layer to form a first grid layer comprising a plurality of first grid patterns on the transparent substrate and a concave portion between the first grid patterns, wherein each first grid pattern has an upper surface and a side surface; depositing a metal layer on the first grid patterns and the concave portion in such a manner that a void portion is present on the concave portion after the metal layer is deposited, thereby enabling a separation space having a regular interval to be formed between one portion of the metal layer and another portion of the metal layer deposited on an adjacent first grid pattern; and performing a wet etching process to pattern the metal layer deposited on the first grid patterns and the concave portion to remove any of the metal layer present on the side surface of each first grid pattern and to respectively form second grid patterns on the upper surfaces of the first grid patterns; wherein a portion of the transparent substrate is exposed between the first grid patterns.