Diffraction modulator exploiting transverse electro-optic effect in ferroelectric liquid crystals is proposed for display applications. Experiments performed with short pitch ferroelectric liquid crystal aligned homeotropically showed that an achromatic contrast ratio better than 100:1 available with oblique readout. The sources of the contrast deterioration and a tolerance of the proposed scheme to them are analyzed. For the selected directions of readout the light output obtains low sensitivity to the polarization of readout light.
Alexander V. Parfenov,
"Diffraction-based ferroelectric liquid crystal light modulation for display technique", Proc. SPIE 3634, Projection Displays V, (20 May 1999); doi: 10.1117/12.349354; https://doi.org/10.1117/12.349354