Title :
New low-melting cholesterogens for electro-optical displays and surface thermography
Author :
Gray, W. ; McDonnell, D.G.
Author_Institution :
University of Hull, Department of Chemistry, Hull, UK
Abstract :
New optically active biphenyl compounds have been synthesised. Low-melting mixtures with biphenyl nematogens give stable, room-temperature cholesteric liquid crystals of positive dielectric anisotropy. These give the cholesteric-nematic electro-optical phase-change effect. Mixtures of the new compounds exhibit thermochromism¿selective reflection of light varying with temperature.
Keywords :
electro-optical devices; liquid crystal devices; liquid crystals; surface measurement; thermal analysis; thermo-optical effects; biphenyl nematogens; cholesteric liquid crystals; electro optical displays; low melting cholesterogens; optically active biphenyl compounds; positive dielectric anisotropy; surface thermography; thermochromism;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19750425
