Nemoptic's displays are based on twisting nematic liquid crystals. (technologyreview.com)
Reversible fragmentation and self - assembling of nematic liquid crystal droplets on functionalized pyroelectric substrates F. Merola, S. Grilli, S. Coppola, V. Vespini, S. De Nicola, P. Maddalena, C. Carfagna, and P. Ferraro Advanced Functional Materials 22, 3267 - 3272 (2012). (inoa.it)
The image on the right shows a heated strip of nematic elastomer contracting to lift a 30 - gram weight. (scientificamerican.com)