Patent ID: 8852470

Claim:
A method of manufacturing a diffuser-integrated prism sheet, comprising: applying a first uncured resin to a predetermined thickness on a lower surface of a first resin sheet; passing the first resin sheet having the first uncured resin over a roll having a plurality of hemispherical recesses and in contact therewith to thus form a first uncured resin layer having a plurality of hemispherical protrusions, and then radiating UV light to thus cure the first uncured resin layer, thereby forming a lower diffuser layer; applying a second uncured resin on an upper surface of the first resin sheet; passing the first resin sheet having the second uncured resin over a roll having prism-shaped recesses and in contact therewith to thus form a second uncured resin layer having prism-shaped protrusions, and then radiating UV light to thus cure the second uncured resin layer; applying a third uncured resin to a predetermined thickness on an upper surface of a second resin sheet; passing the second resin sheet having the third uncured resin over a roll having a plurality of hemispherical recesses and in contact therewith to thus form a third uncured resin layer having a plurality of hemispherical protrusions, and then radiating UV light to thus cure the third uncured resin layer, thereby forming an upper diffuser layer; applying an adhesive on ridges of the prism-shaped protrusions of the first resin sheet, and then bringing the first resin sheet into close contact with the second resin sheet so that the ridges of the prism-shaped protrusions of the first resin sheet come into contact with one surface of the second resin sheet; and drying the adhesive.