Liquid crystals stored in vials and bottles are often found to degrade with time, trapping more and more ion impurity in the materials. Here we report on our identification of a major source causing such degradation and illustrate how the electrical properties of an old batch of liquid crystal can be restored by a regenerative agent. This approach, which is demonstrated to be quite efficient, entails simply soaking the agent in the liquid crystal. © 2010 Elsevier B.V. All rights reserved.
Lee, W., Wang, C. T., & Lin, C. H. (2010). Recovery of the electrically resistive properties of a degraded liquid crystal. Displays, 31(3), 160–163. https://doi.org/10.1016/j.displa.2010.04.003