| 摘要 |
An improvement to prism films for displays that reduces the Moiré pattern effect, and also provides a light diffusion function. A prism film with many small prism units is used. The pattern of the prism film is varied, ideally with a random or pseudo random variation. The variation can be in any, some or all aspects of the prism structure. In particular, the thickness and position of the prism elements can be varied.
|
