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Proceedings Paper

Fast in-plane switching of nematic liquid crystals by two-dimensional confinement with virtual walls
Author(s): Tae-Hoon Choi; Jae-Hyeon Woo; Yeongyu Choi; Seung-Won Oh; Tae-Hoon Yoon
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Paper Abstract

We introduce a method for achieving a short response time in homogeneously aligned liquid crystal cells by twodimensional confinement of LCs with virtual walls. When an electric field is applied to in-plane switching (IPS) and fringe-field switching (FFS) cells with interdigitated electrodes parallel to the LC alignment direction, virtual walls are built so that the switching speed can be increased several-fold. We also introduce an interdigitated pixel electrode structure with alternating tilts for a much wider viewing angle by aligning the LCs without a pretilt. In addition to a short response time and wide viewing angle, this device allows a much larger deviation of the LC alignment direction which is essential for mass production. Moreover, LCs with negative dielectric anisotropy can be used to minimize the transmittance decrease.

Paper Details

Date Published: 15 February 2017
PDF: 9 pages
Proc. SPIE 10125, Emerging Liquid Crystal Technologies XII, 1012512 (15 February 2017); doi: 10.1117/12.2253709
Show Author Affiliations
Tae-Hoon Choi, Pusan National Univ. (Korea, Republic of)
Jae-Hyeon Woo, Pusan National Univ. (Korea, Republic of)
Yeongyu Choi, Pusan National Univ. (Korea, Republic of)
Seung-Won Oh, Pusan National Univ. (Korea, Republic of)
Tae-Hoon Yoon, Pusan National Univ. (Korea, Republic of)


Published in SPIE Proceedings Vol. 10125:
Emerging Liquid Crystal Technologies XII
Liang-Chy Chien, Editor(s)

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