Base 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 (γ 2 ), respectively. The asymmetrical cells of PI rub-PI plasma (rubbed polyimide (PI) and plasma treated PI surfaces), PVA rub-PI plasma (rubbed polyvinyl alcohol (PVA) and plasma treated PI surfaces), and PVA rub-PI rub (both rubbed PI and PVA) alignment conditions present mono-domain alignment textures under slow cooling process. Among these alignment pairs, the PVA rub-PI rub treated cell, with larger difference in γ 2 values, appeared to have better alignment. A 2.4″ prototype TFT-LCD was presented by PVA rub-PI rub treated surfaces.
|Number of pages||3|
|Journal||Digest of Technical Papers - SID International Symposium|
|State||Published - 1 May 2010|