Open AccessInterdigitated pixel electrodes with alternating tilts for fast fringe-field switching of liquid crystals
Author(s) -
TaeHoon Choi,
Jiyong Woo,
YunJaie Choi,
TaeHoon Yoon
Publication year - 2016
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.24.027569
Subject(s) - transmittance , optics , liquid crystal , materials science , electric field , electrode , viewing angle , pixel , dielectric , liquid crystal display , anisotropy , optoelectronics , physics , quantum mechanics
We propose an interdigitated pixel electrode structure with alternating tilts for fast fringe-field switching of liquid crystals (LCs). In contrast to an LC cell, where the pixel electrodes are parallel to the LC alignment direction, this device does not require a non-zero pretilt angle, owing to an obliquely applied electric field; thus, it can retain a much wider viewing angle by aligning the LCs without a pretilt. In addition to a short response time and wide viewing angle, the proposed 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.