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http://dx.doi.org/10.3807/JOSK.2016.20.4.510

Optical Simulation of Viewing Angle Property of Biaxial Nematic Bent-Core Liquid Crystal  

Yang, Seungbin (Division of Electronics Engineering, Chonbuk National University)
Lee, Ji-Hoon (Division of Electronics Engineering, Chonbuk National University)
Publication Information
Journal of the Optical Society of Korea / v.20, no.4, 2016 , pp. 510-514 More about this Journal
Abstract
The conventional liquid crystal displays (LCDs) have been using optically uniaxial liquid crystal (LC) medium and this often causes a significant image change at oblique viewing angles. We simulated the viewing angle properties of the biaxial nematic (Nb) phase of a bent-core liquid crystal (BLC) and compared the results with the vertically aligned (VA)- and the in-plane switching (IPS)-LCDs. The Nb phase of the BLC showed a smaller transmittance at the dark state as well as a greater contrast ratio at wide viewing angle. The viewing angle property of the Nb-mode without any compensation film was slightly superior to the IPS-mode with the compensation films eliminating the decross of the polarizers at oblique viewing angle.
Keywords
Biaxial nematic liquid crystal; Viewing angle; Contrast ratio;
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