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Fast Electro-Optical Effect in Polymer-Stabilized Blue Phases

机译:聚合物稳定的蓝相中的快速电光效应

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Key challenges in achieving higher-quality liquid crystal displays for future generations are developing new liquid crystal materials with faster electro-optical response and simplifying the fabrication process of devices. Blue phases, kinds of liquid crystal phases, have two major advantages over commonly used nematic phases. First, the response is much faster. Second, the zero-electric field state is optically isotropic unlike nematic phases, that is, no surface treatment (no rubbing) is necessary, leading to a simplification of the fabrication process. One of the problems of blue phases that the available temperature range is very narrow has been overcome by our recent achievement, the polymer-stabilized blue phases. Here we show that the polymer-stabilized blue phases surmount another problem that the blue phase is very fragile to an electric field. We also demonstrate the sufficiently large electric field-induced birefringence and the micro-second response of the polymer-stabilized blue phases without any surface treatment.
机译:实现下一代高质量液晶显示器的关键挑战是开发具有更快电光响应并简化器件制造工艺的新型液晶材料。蓝相(液晶相的一种)与常用的向列相相比具有两个主要优点。首先,响应速度更快。第二,与向列相不同,零电场状态是光学各向同性的,也就是说,不需要表面处理(无需摩擦),从而简化了制造过程。蓝相的问题之一是可用温度范围很窄,这是我们最近的成果所克服的,即聚合物稳定的蓝相。在这里,我们证明了聚合物稳定的蓝相克服了另一个问题,即蓝相对电场非常脆弱。我们还演示了足够大的电场诱导的双折射和未经任何表面处理的聚合物稳定的蓝相的微秒响应。

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