FIELD: optoelectronic engineering.
SUBSTANCE: invention relates to optoelectronic equipment and is intended to control intensity of transmitted light using an electric field. Electrooptical element consists of two parallel plates with transparent electrodes on inner sides and a polymer film with electrolytic capsules encapsulated therein with droplets of a nematic liquid crystal. Components for composition "polymer-nematic liquid crystal" are selected so that n⊥= np. Used composition provides conical surface engagement with director inclination angle in range from 30 to 50° to the normal for the nematic liquid crystal at the polymer-liquid crystal phase interface, as a result of which an axial-bipolar orientation structure is formed in the drops.
EFFECT: technical result is creation of electrically controlled element, having low control voltage and high contrast.
1 cl, 1 dwg
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Authors
Dates
2020-11-20—Published
2020-04-14—Filed