ABSTRACT

As a kind of polymer stabilised liquid crystal (PSLC) devices, the scattering-type polymer-stabilised cholesteric liquid crystal (PSCLC) devices can be switched between the transparent state and the scattering state, which has huge application potential in the fields of smart windows, light valves, light modulators and others. The effect of polymer network texture on the electro-optical properties of PSLC. The monomers used in traditional polymer-stabilised cholesteric liquid crystals are usually bi-functional liquid crystal structure monomers. The operating voltage is high, and the hysteresis effect is also large. In this article, the mono-functional polymer monomer is added in reverse-mode polymer stabilised cholesteric liquid crystals (RPSCLC), it is found that when the weight content of the mono-functional monomer is close to that of bi-functional monomer, the large drop of the operating voltage is realised and the contrast ratio effect is increased, and the hysteresis effect can be greatly reduced. Combined with the morphology of the polymer network, the physical mechanism of the influence of mono-functional monomers on the electro-optic properties of PSCLC is revealed. The sample has the simple manufacturing process, uniform size of polymer network, low operating voltage, low hysteresis effect and high contrast ratio. The results will provide the important influence on the research of PSLC.

摘要

散射型聚合物稳定的胆甾型液晶（PSCLC）作为一种聚合物稳定型液晶（PSLC）器件，可以在透明状态和散射状态之间切换，在智能窗领域具有巨大的应用潜力。 ，光阀，光调制器等。聚合物网络纹理对PSLC光电特性的影响。在传统的聚合物稳定的胆甾型液晶中使用的单体通常是双官能液晶结构单体。工作电压高，磁滞效应也大。在本文中，将单官能聚合物单体添加到反向模式聚合物稳定的胆甾型液晶（RPSCLC）中，发现当单官能单体的重量含量接近双官能单体的重量含量时，实现了工作电压的大幅下降并且对比率的效果增加，并且磁滞效果可以大大降低。结合聚合物网络的形态，揭示了单官能单体对PSCLC电光性质影响的物理机理。该样品制造工艺简单，聚合物网络尺寸均匀，工作电压低，磁滞效应低，对比度高。研究结果将对PSLC的研究产生重要影响。结合聚合物网络的形态，揭示了单官能单体对PSCLC电光性质影响的物理机理。该样品制造工艺简单，聚合物网络尺寸均匀，工作电压低，磁滞效应低，对比度高。研究结果将对PSLC的研究产生重要影响。结合聚合物网络的形态，揭示了单官能单体对PSCLC电光性质影响的物理机理。该样品制造工艺简单，聚合物网络尺寸均匀，工作电压低，磁滞效应低，对比度高。研究结果将对PSLC的研究产生重要影响。