| 摘要 |
The invention relates to the element of a liquid crystal display comprising a slotted input mask, a lens raster-condenser, a liquid crystal layer arranged between two transparent substrates which are provided with transparent electrodes and with alignment layers placed thereon, a lens raster-object and a slotted output mask whose slot positions are co-ordinated with the position of the input mask slots. The surface area of the element is conventionally divided into three sub-areas, in each of which a phase diffraction structure can be formed in the liquid crystal layer. The inventive element is characterised in that said alignment layers are made of a photopolymer, the phase diffraction structure is formed by the liquid crystal sections having different initial orientation determined by the different direction of a planar polarisation during the photopolymer exposure, the period of differently oriented sections is identical in each sub-area, the relative position of the output mask slots with respect to the input mask slots is different in each sub-area, wherein one of three primary colours passes in the limits of each sub-area and is different for each sub-area. |
