Uniform lying Helix (ULH) is one of the most promising new LC modes for fast switching applications with alternative driving schemes such as FSC (field sequential colour). ULH operates via flexoelectric switching, unlike current commercially available liquid crystal modes that operate via dielectric switching. The realisation of mixtures with suitable flexoelectric properties requires unique materials composed of specially designed ´bi-mesogens´ and also the addition of a chiral dopant. Recent advances, updated mixture performance and other challenges such as alignment and driving for this new mode are discussed.
Michael Wittek, Simon Siemianowski, Bernd Fiebranz, and Melanie Klasen-Memmer, "Recent advances in fast-switching liquid-crystal mode based on uniform lying helix (ULH) (Conference Presentation)," Proc. SPIE 10125, Emerging Liquid Crystal Technologies XII, 1012510 (Presented at SPIE OPTO: February 01, 2017; Published: 21 April 2017); https://doi.org/10.1117/12.2257803.5398643909001.
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Study of self-shadowing effect as a simple means to realize nanostructured thin films and layers with special attentions to birefringent obliquely deposited thin films and photo-luminescent porous silicon