FIELD: optics.
SUBSTANCE: invention relates to optoelectronic engineering, particularly to devices and elements based on liquid crystals (LCD) intended to control the intensity of transmitted light. Element is composed of two crossed polarizers, there is a liquid crystal cell with ionic-surfactant control between those, above liquid crystal cell consists of two glass plates with transparent electrodes on their inner sides coated with polymer orientation films, and a nematic liquid crystal layer doped with ionic surfactant between them. Touching direction of one of the substrates is parallel to one of the polarizers. Touching direction of the other substrate makes a 45° angle with the polarizers. Bipolar electric pulses are used to control light transmission.
EFFECT: technical result is enhanced speed of action of the liquid crystal electro-optical element.
1 cl, 6 dwg
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