a polarizer; and

a pattern layer on a light exit surface of the polarizer,

wherein the pattern layer comprises a first resin layer and a second resin layer sequentially arranged on the polarizer, such that the first resin layer is between the light exit surface of the polarizer and a light incident surface of the second resin layer,

a pattern portion is located at an interface between the first resin layer and the second resin layer and is composed of at least two pattern groups having a same configuration and repeatedly arranged therein, each of the pattern groups comprising at least three engraved optical patterns comprising a first pattern, a second pattern, and a third pattern having different base angles, and

at least two of the engraved optical patterns in each of the pattern groups have different aspect ratios, and

wherein the first resin layer has a higher refractive index than the second resin layer.