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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 which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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MDPI and ACS Style

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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