| 摘要 |
<p>The display includes a liquid crystal spatial light modulator, and an illumination source for producing nearly collimated predominantly white S polarized illuminating light. The modulator is of a layer of liquid crystal material, a transparent plate having a transparent electrode facing the layer of liquid crystal material, and a reflective surface that is divided into a mosaic of electrically independent picture elements. A holographic colour filter is adjacent the modulator and it has three layers of overlapping holographic lenses. A prism element is adjacent to the filter for coupling illuminating light from the source to the filter, and a polarizer is disposed on an output surface of the prism element opposite from the filter. The filter focusses red, green, and blue light, respectively, onto corresponding picture elements of the modulator. The polariser on the output surface prism transmits P polarized light but blocks S polarized light. The p polarised light is received by a projection optical system to produce an image for viewing.</p> |
