Retardation film, method of manufacturing the same, and display

A method of manufacturing a retardation film comprising the steps of:

• forming a plurality of grooves extending in a specific direction on a surface of a substrate;
• coating the surface on which the plurality of grooves are formed of the substrate with a liquid crystal material having polymerizability so that the liquid crystal material is arranged in contact with the surface of the substrate;
• and
• polymerizing the liquid crystal material.

A display comprising:

• a light source;
• a display cell performing display based on light from the light source;
• a first polarizer and a second polarizer arranged on a light source side and display side of the display cell, respectively;
• and
• a retardation film arranged on a light emission side of one or both of the first polarizer and the second polarizer,
• wherein the retardation film includes:
• a substrate having a plurality of grooves extending in a specific direction on a surface thereof, and
• a retardation layer arranged in contact with the surface of the substrate, and including a liquid crystal material, the liquid crystal material being aligned along the extending direction of the plurality of grooves and being polymerized.