One of the most notorious problems with ferroelectric liquid crystal is obtaining zigzag free bistable devices. By investigating the balance between surface azimuthal anchoring energy and bulk elastic energy within the confined chevron layer geometry of and we propose that it is possible to get a zigzag free state by low azimuthal anchoring alignment at a low pretilt angle. The critical azimuthal anchoring coefficient for the defect free state is calculated. Its relationships with elastic constant, chevron angle, as well as surface topography effect are also discussed.
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© 2001 American Institute of Physics.
2001
American Institute of Physics
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