Polarizer, method of manufacturing the same, and display device

A method of manufacturing a polarizer, the method comprising:

• preparing a base layer comprising a first area and a second area enclosing the first area;
• forming a metal layer on the first area and the second area of the base layer;
• etching the metal layer to form a first portion disposed on the first area and a second portion disposed on the second area and spaced apart from the first portion;
• forming a hard mask layer on the first portion, the second portion, and a third portion of the base layer between the first portion and the second portion;
• forming a resist layer on the hard mask layer;
• pressing the resist layer by a mold to form a resist pattern thereon;
• etching the hard mask layer by using the resist pattern as a first mask;
• and
• etching the first portion and the second portion by using the etched hard mask layer as a second mask.

A display device comprising:

• a first substrate comprising:
• a first base layer comprising a first area and a second area enclosing the first area;
• a first polarizing part disposed on the first area of the first base layer, the first polarizing part comprising a plurality of first linear patterns spaced apart from each other;
• a first dummy part disposed on the second area of the first base layer and spaced apart from the first polarizing part;
• and
• a first hard mask residue part disposed on a portion of the second area of the first base layer between the first polarizing part and the first dummy part and contacting the first base layer;
• a second substrate facing the first substrate;
• and
• a liquid crystal layer interposed between the first substrate and the second substrate,
• wherein the first polarizing part and the first dummy part comprise:
• a first metal layer disposed on the first base layer;
• and
• a first hard mask layer disposed on the first metal layer and comprising the same material as the first hard mask residue part.