Smectic A and C* liquid crystal light valves

Laurent Dupont , Z. Y. Wu , P. Cambon , J. L. de Bougrenet de La Tocnaye

The development of light valves for application in the domain of imaging and information display has benefited from simultaneous advances in liquid crystal materials. We will focus on recent developments involving the use of smectic A and smectic C*. Two types of light valves are described with their addressing technology. The first one is optically addressed spatial light modulator: optical information is converted into electric information through the medium of a photoconductivity material layer (amorphous silicon). The second type of valve is a VLSI chip covered with liquid crystal which can be optically addressed on each pixel and perform local electronic processing. The local switching of the liquid crystal allows the reading of the final state.

Domaines: Articles anciens

Laurent Dupont, Z. Y. Wu, P. Cambon, J. L. de Bougrenet de La Tocnaye. Smectic A and C* liquid crystal light valves. Journal de Physique III, 1993, 3 (7), pp.1381-1399. ⟨10.1051/jp3:1993207⟩. ⟨jpa-00249006⟩