Abstract
The switching process of BiNem liquid crystal displays (LCDs), which has been so far argued, is reexamined from the viewpoints of anchoring breaking and flow effects. By numerical simulation based on the continuum theory of nematic liquid crystals, the switching process between two stable states was investigated by changing the surface anchoring condition of BiNem LCDs to optimize bistable conditions. From the numerical results of the director and the flow distributions, polar anchoring breaking was distinguished clearly from azimuthal anchoring breaking in bistable switching. The bistable switching regime was observed to be limited by the polar anchoring strength at the slave plate; therefore, the polar anchoring strength at the slave plate was optimized for bistable switching. Furthermore, a BiNem cell was fabricated based on the numerical results, and bistable switching was confirmed.
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