Kim Taehyung, Lee Joong Ha, Yoon Tae-Hoon, Choi Suk-Won
Department of Advanced Materials Engineering for Information and Electronics, Kyung Hee University, Yongin, Gyeonggi-do 446-701, South Korea.
Opt Express. 2012 Jul 2;20(14):15522-9. doi: 10.1364/OE.20.015522.
We propose a reflective dual-mode liquid crystal display (RD-LCD) which has advantages of long memory retention time and high contrast ratio. The proposed device adopts ideal bistable characteristics, a cell thickness over pitch (d/p) of 0.25. It can realize long memory retention time, thereby reducing power consumption. In addition, an optical configuration for the RD-LCD makes low light leakages at dark state and shows good dispersion characteristics in both dark and bright states over the entire visible ranges. We experimentally confirmed retention time over 6 months in memory mode and memory and dynamic contrast ratios of 47:1 and 43:1 under ambient light, respectively. As a result, the proposed RD-LCD demonstrates convincingly that it is a candidate for green display.
我们提出了一种反射式双模式液晶显示器（RD-LCD），它具有长记忆保留时间和高对比度的优点。所提出的器件采用理想的双稳态特性，盒厚与节距之比（d/p）为0.25。它可以实现长记忆保留时间，从而降低功耗。此外，RD-LCD的光学配置在暗态下具有低漏光率，并且在整个可见光范围内的暗态和亮态下均表现出良好的色散特性。我们通过实验证实，在记忆模式下保留时间超过6个月，在环境光下记忆对比度和动态对比度分别为47:1和43:1。结果，所提出的RD-LCD令人信服地证明了它是绿色显示器的候选者。
