Alignment of Liquid Crystals Using a Molecular Layer with Patterned Molecular Density

Authors

  • Jong-Ho Son,

    1. Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk, Republic of Korea, 790-784
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  • Wang-Cheol Zin,

    1. Department of Materials Science and Engineering, Pohang University of Science and Technology (POSTECH), Pohang, Gyeongbuk, Republic of Korea, 790-784
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  • Hideo Takezoe,

    1. Department of Organic and Polymeric Materials, Tokyo Institute of Technology, 2-12-1-S8-42 O-okayama, Meguro-ku, Tokyo, Japan, 152-8552
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  • Jang-Kun Song

    Corresponding author
    1. School of Information & Communication Engineering, Sungkyunkwan University, Suwon, Gyeonggi-do, Republic of Korea, 440-746
    • School of Information & Communication Engineering, Sungkyunkwan University, Suwon, Gyeonggi-do, Republic of Korea, 440-746.
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Abstract

original image

The surface of self-constructed molecular density modulation (SDM) exhibits a wide range of liquid crystal alignment capabilities including planar, tilted, and homeotropic alignments, disclination-free uniform and heterogeneous alignments, and even spatially varying alignments through the single non-contact process. Alignment defects are eliminated by temporary lowering the frictional energy barrier via the open-boundary elastic stabilization (OES) treatment.

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