A highly bistable fast-shear aligned polymer dispersed ferroelectric liquid crystal device
A highly bistable fast-shear aligned polymer dispersed ferroelectric liquid crystal device
复制标题
一种高双稳态快剪切取向聚合物分散铁电液晶器件
DOI：
10.1080/026782999204732
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发表时间：
1999
期刊：
影响因子：
2.2
通讯作者：
H. Coles
中科院分区：
文献类型：
--
作者：
M. J. Coles;C. Carboni;H. Coles
我们提出了一种新的剪切排列聚合物分散铁电液晶材料，在这种结构下具有与传统表面稳定铁电液晶相同的光电特性。样品厚度为20mum，而不是常规表面稳定几何中使用的1-2mum。新材料显示出在100mus时间尺度上的开关，并且在去除场后几分钟具有非常高的双稳性（G>0.8）。室温下与温度无关的表观倾斜角为25，几乎等于许多显示应用的理想值22.5。该材料是由一种新型低摩尔质量有机硅氧烷铁电液晶在紫外光固化聚合物中的溶液制备的。对复合材料的物理性能进行了研究，并对制备工艺和优化工艺进行了描述。该材料和制造技术可以很容易地用于包括柔性显示面板在内的设备的工业生产。
We present a new shear aligned polymer dispersed ferroelectric liquid crystal material which in this configuration possesses the same electro-optical characteristics as conventional surface stabilized ferroelectric liquid crystals. The sample thickness is 20mum as opposed to the 1-2mum used in the normal surface stabilized geometry. The new material shows switching on the 100mus timescale and very high bistability (G>0.8) minutes after removal of the field. The temperature independent apparent tilt angle is 25 at room temperature, almost equal to the ideal value of 22.5 for many display applications. The material is prepared from a solution of a novel low molar mass organosiloxane ferroelectric liquid crystal in a UV-curable polymer. We study the physical properties of the composite material and give a description of the fabrication technique and its optimization. The material and fabrication technique could be readily used for industrial production of devices including flexible display panels.