| 摘要 |
PURPOSE: A brightness enhancement diffusion film is provided to control a luminance enhancement ratio by controlling the r/P and H/P in a structure. CONSTITUTION: A substrate has a light exiting side. A plurality of micro lenses are formed to have the same height on a light transmissive surface. The micro lenses have a regular hexagon shape. The micro lenses materially have a peak(312) in a geometrical center. A plurality of grooves(32) are arranged between one side of a single micro lens(31) and one side of the other micro lens. The groove has a groove lower part curved to the radius of curvature. Two grooves are located in parallel on both sides of the micro lenses. |
