Photoaligning and photopatterning technology: applications in displays and photonics

Vladimir Chigrinov

doi:10.1117/12.2207874

7 March 2016 Photoaligning and photopatterning technology: applications in displays and photonics

Vladimir Chigrinov

Author Affiliations +

Proceedings Volume 9769, Emerging Liquid Crystal Technologies XI; 97690J (2016) https://doi.org/10.1117/12.2207874
Event: SPIE OPTO, 2016, San Francisco, California, United States

Abstract

The advantages of LC photoalignment technology in comparison with common “rubbing” alignment methods tend to the continuation of the research in this field. Almost all the criteria of perfect LC alignment are met in case of azo-dye layers. Nowadays azo-dye alignment materials can be already used in LCD manufacturing, e.g. for the alignment of monomers in LCP films for new generations of photonics and optics devices. Recently the new application of photoaligned technology for the tunable LC lenses with a variable focal distance was proposed. New optically rewritable (ORW) liquid crystal display and photonics devices with a light controllable structure may include LC E-paper screens, LC lenses with a variable focal distance etc. Fast ferroelectric liquid crystal devices (FLCD) are achieved through the application of nano-scale photo aligning (PA) layers in FLC cells. The novel photoaligned FLC devices may include field sequential color (FSC) FLC with a high resolution, high brightness, low power consumption and extended color gamut to be used for PCs, PDAs, switchable goggles, and new generation of switchable 2D/3D LCD TVs, as well as photonics elements.

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Vladimir Chigrinov "Photoaligning and photopatterning technology: applications in displays and photonics", Proc. SPIE 9769, Emerging Liquid Crystal Technologies XI, 97690J (7 March 2016); https://doi.org/10.1117/12.2207874

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KEYWORDS

Liquid crystals

LCDs

Optical alignment

Light emitting diodes

Lenses

Polarizers

Photonics

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