Abstract
AbstractBase on FLC free energy, the asymmetrical alignment techniques were proposed to suppress the alignment defects of half‐V mode ferroelectric liquid crystal (HV‐FLC) devices. Alignment layers with opposite surface polarities and different anchoring energies were applied to controlled the sign and value of polar surface coefficient (γ2), respectively. The asymmetrical cells of PIrub‐ PIplasma (rubbed polyimide (PI) and plasma treated PI surfaces), PVArub‐PIplasma (rubbed polyvinyl alcohol (PVA) and plasma treated PI surfaces), and PVArub‐PIrub (both rubbed PI and PVA) alignment conditions present mono‐domain alignment textures under slow cooling process. Among these alignment pairs, the PVArub‐PIrub), treated cell, with larger difference in γ2 values, appeared to have better alignment. A 2.4″ prototype TFT‐LCD was presented by PVArub‐PIrub treated surfaces.
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