[17a-PA03-1~24] 12.3 Functional Materials and Novel Devices

[17a-PA03-22] Effect of Rubbing Symmetry on Molecular Orientation of Ferroelectric Nematic Liquid Crystals

〇(B)Hirokazu Kamifuji¹, Kazuma Nakajima¹, Yuji Tsukamoto¹, Masanori Ozaki¹, Hirotugu Kikuchi² (1.Osaka Univ., 2.Kyusyu Univ.)

Keywords:liquid crystals, ferroelectricity

Orientation control of liquid crystals with ferroelectricity is one of the challenges in device applications. These materials are known to have a dependence on alignment agents and other factors, so the details of their molecular orientation characteristics have been little understood. In this study, we investigated the orientation behavior of ferroelectric nematic liquid crystals in antiparallel and parallel cells with rubbed interface having symmetrical surface topography. An in-plane electric field was applied to the parallel cell, and the polarization direction at the interface was found to be determined by the rubbing direction. And, in antiparallel cells, a twisting structure in the out of plane direction coexists to cancel polarization.