BI-STABLE LIQUID-CRYSTALLINE ELEMENT AND METHOD FOR CONTROLLING THE SAME

• Main Authors: PALTO SERGEJ PETROVICH, BARNIK MIKHAIL IVANOVICH, LAZAREV VLADIMIR VLADIMIROVICH, BLINOV LEV MIKHAJLOVICH
• Format: Patent
• Language: English; Russian
• Published: 27.03.2006
• Subjects: DEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH ISMODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THEDEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY,COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g.SWITCHING, GATING, MODULATING OR DEMODULATING; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL ANALOGUE/DIGITAL CONVERTERS; OPTICAL LOGIC ELEMENTS; OPTICS; PHYSICS; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF

FIELD: engineering of devices for displaying and processing information. ^ SUBSTANCE: bi-stable liquid-crystalline element includes a layer of liquid crystal or liquid-crystalline material with inversion of dielectric anisotropy sign, positioned between two substrates with electrodes on their internal planes, processed for direction of liquid crystal, or covered by directing layers. Polarizers or other means holding the place of the latter serve for determining difference between switched bi-stable states during feeding onto electrodes of special electric signals in form of pulse packets with electric voltage frequency less or more than frequency of inversion of liquid crystal dielectric anisotropy sign. Different modes of bi-stable switching of liquid crystals may be achieved depending on direction of liquid-crystalline directing device on substrates. ^ EFFECT: improved electro-optical and operation characteristics of liquid-crystalline element. ^ 3 cl, 13 dwg