Patent ID: 10451948

Abstract:
A standing helix ferroelectric liquid crystal display cell includes: two transparent substrates (102A, 102B); a ferroelectric liquid crystal layer (104) comprising ferroelectric liquid crystals in a standing helix configuration, the ferroelectric liquid crystal layer (104) being disposed between the two transparent substrates (102A, 102B), the ferroelectric liquid crystals having a helix axis perpendicular to the two substrates (102A, 102B) and chiral smectic liquid crystal helix pitch shorter than a wavelength of a polarized light normally impinging at least one of the two transparent substrates (102A, 102B); and inter-digital electrodes (105), disposed in plane with the two transparent substrates (102A, 102B), configured to apply an electric field to the ferroelectric liquid crystal layer (104) that provides a driving voltage below a critical voltage for helix unwinding.