| 摘要 |
The present invention relates to a prism sheet and a backlight unit and display device including the same, the prism sheet including: a first base layer and a second base layer arranged in parallel with each other; a plurality of first prism mountains formed on one side of the first base layer and arranged along a first axial direction; and a plurality of second prism mountains formed on one side of the second base layer and arranged in a second axial direction vertical to the first axial direction, wherein the first prism mountains include first and second surfaces protruding from the first base layer, a first angle formed by the first surface and the one side of the first base layer, and a second angle formed by the second surface and the one side of the first base layer, wherein a difference between the first angle and the second angle ranges between 6 degrees and 12 degrees. According to the present invention, the brightness of light emitted from a prism sheet is maximized in a vertical direction to the prism sheet by differentiating the first and second angles of the first prism angles, thereby improving the brightness of light supplied to a display panel. |
