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High Birefringence Liquid Crystals
Crystals 2013, 3(3), 483-503; doi:10.3390/cryst3030483
Review

High Performance Negative Dielectric Anisotropy Liquid Crystals for Display Applications

1
,
1
,
2
,
3
 and
1,*
1 CREOL, The College of Optics and Photonics, University of Central Florida, 4000 Central Florida Blvd, Orlando, FL 32816, USA 2 JNC, Petrochemical Corporation, Ichihara Research Center, Ichihara, Chiba 290-8551, Japan 3 Jiangsu Hecheng Display Technology Company, Nanjing 210014, China
* Author to whom correspondence should be addressed.
Received: 8 July 2013 / Revised: 21 August 2013 / Accepted: 26 August 2013 / Published: 3 September 2013
(This article belongs to the Special Issue Advances in Liquid Crystals)
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Abstract

We review recent progress in the development of high birefringence (Δn ≥ 0.12) negative dielectric anisotropy (Δε < 0) liquid crystals (LCs) for direct-view and projection displays. For mobile displays, our UCF-N2 (low viscosity, negative Δε, high Δn) based homogeneous alignment fringe-field switching (called n-FFS) mode exhibits superior performance to p-FFS in transmittance, single gamma curve, cell gap insensitivity, and negligible flexoelectric effect. For projection displays using a vertical alignment liquid-crystal-on-silicon (VA LCOS), our high birefringence UCF-N3 mixture enables a submillisecond gray-to-gray response time, which is essential for color sequential displays without noticeable color breakup. Our low viscosity UCF-N2 also enables multi-domain VA displays to use a thinner cell gap for achieving faster response time.
Keywords: liquid crystal display; negative dielectric anisotropy; fringe-field switching; projection displays liquid crystal display; negative dielectric anisotropy; fringe-field switching; projection displays
This is an open access article distributed under the Creative Commons Attribution License (CC BY 3.0).
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Chen, Y.; Peng, F.; Yamaguchi, T.; Song, X.; Wu, S.-T. High Performance Negative Dielectric Anisotropy Liquid Crystals for Display Applications. Crystals 2013, 3, 483-503.

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