[LCT3] Advanced LCD Technologies

[LCT3-2] Optimization of color and transmittance in a dye-doped chiral-nematic liquid crystal cell

*Seung-Min Nam¹, Seung-Won Oh¹, Jae-Won Huh¹, Seong-Min Ji¹, Eunjung Lim², Jinhong Kim², Tae-Hoon Yoon¹ (1. Pusan National University (Korea), 2. LG Chem. (Korea))

Keywords:liquid crystal, dichroic dye, dye-doped liquid crystal, transmittance-control device

Among various dye-doped liquid crystal (LC) devices, a chiral-nematic LC cell provides the highest transmittance difference between its transparent and opaque states. We propose a systematic approach to find the optimal dye mixing for black color in the opaque state and optimization method in the parameter space for the maximum transmittance difference.