Mechanically bistable liquid-crystal display structures
Mechanically bistable liquid-crystal display structures
复制标题
机械双稳态液晶显示结构
DOI：
10.1109/t-ed.1980.20151
复制
发表时间：
1980
影响因子：
3.1
通讯作者：
G. Boyd
中科院分区：
文献类型：
--
作者：
R. N. Thurston;J. Cheng;G. Boyd
本文讨论了两种类型的机械双稳态液晶显示结构，一种是先前报道的类型[2]、[3]，称为垂直-水平，第二种类型，称为水平-水平。在两者中，导向器配置都是平面的。它们的区别在于指向矢平面的方向，在垂直-水平类型中，指向矢平面垂直于器件的主表面，在水平-水平类型中，指向矢平面平行。在这两种类型中，双稳态可以通过使用偏振器和二向色染料来光学区分，并且通过利用有序液晶态的介电各向异性来实现电切换。我们展示了指向矢配置、它们的能量以及双稳态的光学对比度的计算。双稳态在拓扑上是不同的，因此开关转换在特性上必然是不连续的。向错的运动控制着转换过程，它们的脱离构成了稳定的基础。
This paper discusses two types of mechanically bistable liquid-crystal display structures, a previously reported type [2], [3] called vertical-horizontal, and a second type, called horizontal-horizontal. In both of them, the director configuration is planar. They are distinguished by the orientation of the director plane, which is perpendicular to the major surfaces of the device in the type called vertical-horizontal, and parallel in the type called horizontal-horizontal. In both types, the bistable states may be differentiated optically by use of a polarizer and dichroic dye, and switching is accomplished electrically by exploiting the dielectric anisotropy of the ordered liquid crystal states. We show calculations of the director configurations, their energy, and optical contrast of the bistable states. The bistable states are topologically distinct, so that the switching transitions are necessarily discontinuous in character. The movement of disclinations governs the switching process, and their detachment forms the basis of stability.