Department of Photonics, National Sun Yat-Sen University, Kaohsiung, Taiwan.
Opt Lett. 2012 Jun 15;37(12):2370-2. doi: 10.1364/OL.37.002370.
This Letter demonstrates a photo-addressable, bistable reflective liquid crystal display that is based on a dye-doped liquid crystal (DDLC). Bistable bright and dark states can be attained using the 45 deg twisted nematic (TN) and photo-induced isotropic states (PHI) of the DDLC, respectively. Both the 45 deg TN and PHI states can exist stably for tens of hours, and each can be rapidly switched to the other by the isomerization effect using UV and green light. A bistable reflective liquid crystal display is simply fabricated, easily operated, and rapidly switched. It therefore has the potential to be used in portable information systems.
这封信件展示了一种基于染料掺杂液晶（DDLC）的光寻址双稳态反射式液晶显示器。双稳态亮态和暗态分别可以通过 DDLC 的 45 度扭曲向列（TN）相和光致各向同性（PHI）相来实现。45 度 TN 相和 PHI 相都可以稳定存在数十个小时，并且可以通过使用紫外光和绿光的异构化效应快速切换到另一个相。双稳态反射式液晶显示器结构简单，操作方便，切换速度快。因此，它有可能用于便携式信息系统。
