| 摘要 |
PURPOSE:To provide the liquid crystal display device for increasing the luminance of a display screen at the liquid crystal display device, equalizing its luminance distribution and widening a view angle in any desired direction. CONSTITUTION:This device is provided with a liquid crystal display element 62, back light 5 arranged on the back of the liquid crystal display element, diffusion plate 39 arranged between the liquid crystal display element 62 and the back light 5, plural lens films 2, 3 and 4 equipped with a prism plane formed by a lot of fine grooves on one face and an almost smooth plane on the other face are arranged between the liquid crystal display element 62 and the diffusion plate 39, and the crossing angle of the grooves of the plural lens films 2, 3 and 4 is set at an acute angle. |
