申请人:The Hong Kong University of Science and Technology
公开号:US11015120B2
公开(公告)日:2021-05-25
A low birefringence ferroelectric liquid crystal (FLC) mixture composed of at least two components shows birefringence in the range 0.05 to 0.14, which is suitable for the modern display and photonic devices. The cell gap can be tuned from 1.5 μm to 4 μm to reduces the fabrication complexity and chromatic distortion by electro-optical modulation. The FLC mixtures can be employed in a wide temperature range. The characteristics of the said FLC mixture can be tuned by tuning the concentration of the constituents of the mixture. The helical pitch of the FLC mixtures can be varied from 100 nm to 10 μm. A smectic tilt angle can be varied between 17° to 45° and the spontaneous polarization can be tuned over a wide range to meet requirements of different electro-optical modes, and the FLC mixture is applicable for a wide variety of electro-optical effects.
由至少两种成分组成的低双折射铁电液晶(FLC)混合物显示出 0.05 至 0.14 的双折射,适用于现代显示器和光子设备。电池间隙可从 1.5 μm 调整到 4 μm,从而通过电光调制降低了制造复杂性和色度失真。FLC 混合物可在很宽的温度范围内使用。上述 FLC 混合物的特性可通过调整混合物成分的浓度来调节。FLC 混合物的螺旋间距可从 100 纳米到 10 微米不等。平滑倾斜角可在 17° 至 45° 之间变化,自发偏振可在较大范围内调整,以满足不同电光模式的要求,因此 FLC 混合物适用于多种电光效应。