FIELD: physics.
SUBSTANCE: screen comprises optical regulators corresponding to each pixel. Optical regulator is composed of two superimposed flat polarisers, one being a solid fixed polariser common for all pixels. Second polariser features area overlapping pixel area to turn relative to first polariser about fixed axis normal to their planes. Aforesaid turn may be actuated by microelectromechanical drive or stylus generating local magnetic or electrical field parallel to screen surface at its writing end. Screen may be used as optical switch.
EFFECT: fast-response simple-design reliable screen.
19 cl, 3 dwg
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