LIQUID CRYSTAL DEVICE

摘要

A liquid crystal device used for an electrooptical device, in which parameters of liquid crystal having a laminar structure are regulated to increase stress resistance and provide halftoning. A ferroelectric liquid crystal or an anti-ferroelectric liquid crystal exhibiting a laminar structure is sandwiched between parallel substrates. A plurality of tilt angles can be set for the boundary layer of the substrates in the laminar structure. The laminar structure can be symmetric or asymmetric with respect to the middle plane between the parallel substrates. Under this construction, a liquid crystal device comprises a plurality of layer structures containing at least one of (1) the structure wherein the tilt angle of the substrate boundary surface is 0 to 3 DEG and a c director tilt is 3 to 5 DEG , (2) the structure wherein the substrate boundary layer tilt angle is 4 to 7 DEG and the c director tilt is 0 to 3 DEG and (3) the structure wherein the substrate boundary layer tilt angle is 8 to 20 DEG and the c director tilt is 9 to 90 DEG . <IMAGE>