| 摘要 |
An exemplary prism sheet according to a preferred embodiment includes a light input surface, a light output surface and a plurality of triangular pyramidal optical elements. The light output surface is opposite to the light input surface. The plurality of triangular pyramidal optical elements are formed at the light output surface. A bottom surface of each triangular pyramidal optical element is coplanar with the light output surface. Each triangular pyramidal optical element has three sides. Each one of the three sides of each triangular pyramidal optical element is connected with a side of adjacent triangular pyramidal optical element. A liquid crystal display device using the prism sheet is also provided.
|
