Formation of polymer walls by phase separation of Lc-polymer binary mixtures in a nonuniform electric field

We investigated the mechanism of polymer wall formation induced by an inhom ogeneous electric field. The patterned electric field drives the phase sepa ration of a liquid crystal polymer mixture. By proper selection of polymer and liquid crystal, polymer walls can be formed in the interpixel region of a multiplex display. We found that difference in the dielectric properties of the LC and polymer components of the mixtures in conjunction with gradi ent of the electric field results in formation of the polymer walls. We dis cuss factors controlling the phase separation process such as concentration , temperature and electric field.