| 摘要 |
Flat display has liquid crystal element (26) for image display. A plurality of point light source (32) exhibiting light element (30). A light guiding element (34) is arranged between the point light sources and the liquid crystal element. At the surface (36) of the light guiding element surface diffracting elements are provided to achieve homogeneous distribution of luminosity or wavelength division. The surface diffracting element has a dimension from 0.04 to 10.000 mu m 2> and among each other at a distance of more than 0 to 100mu m 2>. |
