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Updated: Jul 25, 2026
06:26
Orientational Transition in a Liquid Crystal Triggered by the Thermodynamic Growth of Interfacial Wetting Sheets
Published on: May 15, 2017
Tensor and complex anchoring in liquid crystals
Shiyanovskii1, Glushchenko, Reznikov
1Liquid Crystal Institute, Kent State University, Kent, Ohio 44242 and Institute for Nuclear Research, 47 Prospect Nauki, Kyiv, 03039, Ukraine.
Summary
We introduce a tensor model for liquid crystal (LC) surface anchoring, simplifying complex alignment effects. This model confirms that perpendicular photoalignment treatments can cancel each other out, restoring initial LC anchoring.
Area of Science:
- Materials Science
- Condensed Matter Physics
- Physical Chemistry
Background:
- Surface anchoring is crucial for liquid crystal (LC) display performance.
- Existing models often struggle to capture complex anchoring behaviors.
- Understanding cumulative effects of surface treatments is essential for advanced LC applications.
Purpose of the Study:
- To develop a comprehensive tensor description for liquid crystal surface anchoring.
- To analyze both homogeneous and inhomogeneous anchoring components.
- To investigate the cumulative impact of multiple surface treatments.
Main Methods:
- Formulated a tensor model for LC surface anchoring.
- Reduced the tensor representation to an azimuthal anchoring coefficient for planar alignment.
- Utilized photoalignment treatments with varying polarization states.
Main Results:
- The tensor model successfully describes homogeneous and inhomogeneous anchoring.
- The complex azimuthal anchoring coefficient quantifies anchoring strength and easy axis orientation.
- Experimental confirmation of mutual compensation and restoration of initial anchoring using perpendicular polarization treatments.
Conclusions:
- The proposed tensor model provides a unified framework for LC surface anchoring.
- The model accurately predicts the outcome of sequential photoalignment treatments.
- This work offers a new tool for designing and optimizing LC devices.
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