Patent ID: 9341759
Filing Date: 2016-05-17
CPC Classification: G02B

Claim Text:
1. A method of manufacturing a polarizer, comprising: forming a metal layer on a top surface of a substrate; forming a sacrificial layer on the metal layer; forming bar patterns by patterning the sacrificial layer; forming a barrier layer on the bar patterns and the metal layer; forming barriers along sidewalls of the bar patterns and mutually separated with a certain interval by performing anisotropic etching on the barrier layer; removing the bar patterns; providing a copolymer layer formed of first and second polymers in an opening between the barriers; alternately arranging the first and second polymers by thermally treating the copolymer layer; forming a plurality of nano grid patterns formed of the first polymer and mutually separated with a certain interval between the barriers by removing the second polymer of the first and second polymers, wherein each of the barriers is taller than the plurality of nano grid patterns; and forming metallic nano wires by etching the metal layer using the barriers and the nano grid patterns as a mask, wherein the metallic nano wires include a first metallic nano wire and a second metallic nano wire, and wherein the second metallic nano wire includes a portion of a barrier of the barriers and is taller than the first metallic nano wire by a thickness of the portion of the barrier of the barriers.