Dichroic-dye doped PDLC films were obtained by polymerization-induced phase separation method with two types of dichroic dyes, including a black mixture. The electro-optic characteristics of these films were investigated for different concentrations of liquid crystal in polymer matrix. A strong memory effect was found in such systems, depending on LC concentration and on the type of dichroic dye.
The new original film material, which is able to give the LC planar orientation with pretilt angle was established. The new film consists of a photo-aligning material (azodye) doped with specially synthesized substances with bent molecules.
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