| 摘要 |
<p>The device comprises a liquid crystal cell (11) and an inclined cover plate (18) spaced from the liquid crystal cell (11) and carrying a circular polarizer (19). On the liquid crystal cell (11) there is arranged a lambda/4 delay sheet (16) cooperating with the circular polarizer (19) so as to substantially suppress all the reflections of light coming from the outside and traversing the cover plate (18). </p> |
