| 摘要 |
<p>The invention relates to a liquid-crystal colour display device comprising a white light source (1); means for forming complementary light beams B, G and R; at least one liquid-crystal matrix equipped with optical means for focusing, onto liquid crystals assigned to each of the primary colours, the beams B,G,R, modifying the light emitted by the liquid crystals; and an optical system (15) for projecting the liquid-crystal images onto a screen, merging them by elementary spots. The device comprises optical splitting means (S) forming two elementary sources (1a, 1b) containing a mixture of the colours B, G and R, these sources (1a, 1b) being separate, and at least two optical channels (Cg,Crb) comprising an LCD matrix (Mg, Mrb), one of the channels (Cg) being assigned to the single colour G, the other channel or channels being assigned to the two other colours B and R.</p> |
