Open AccessElimination of image flicker in fringe-field switching liquid crystal display driven with low frequency electric field
Author(s) -
Jung-Wook Kim,
TaeHoon Choi,
TaeHoon Yoon,
EJoon Choi,
Jihoon Lee
Publication year - 2014
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.22.030586
Subject(s) - optics , liquid crystal , flicker , electric field , liquid crystal display , transmittance , materials science , polarization (electrochemistry) , optoelectronics , physics , electrical engineering , chemistry , quantum mechanics , engineering
Recently, a low frequency driving of a fringe-field switching-liquid crystal display (FFS-LCD) draws much attention to minimize the power consumption. In the low frequency driving of FFS-LCD, an image flickering effect occurs when the sign of the electric field is reversed. We suggested a method to eliminate the image flickering effect by doping small amount of bent-core liquid crystal (BLC) molecules. The BLC molecules have an opposite sign of flexoelectric polarization and reduce the flexoelectric polarization of the host liquid crystal. By adding 2.0 wt% of BLC, the total transmittance during a positive and a negative electric field could be balanced and the image flickering effect was not observed by eyes.