LIGHT EMISSION ANGLE ADJUSTING SHEET, DISPLAY PANEL, DISPLAY DEVICE, AND METHOD FOR MANUFACTURING LIGHT EMISSION ANGLE ADJUSTING SHEET

摘要

A plurality of low refractive index material-exposed portions (23) having the same area and a plurality of high refractive index material-exposed portions (22) having different areas are mixed and arranged on an emission surface (11U) of a light emission angle adjusting sheet (11). In particular, a low refractive index material (13) has a shape having a width which monotonically decreases toward a light receiving surface (11B) side.