高分子安定藍相液晶材料之研究與應用

Abstract

現今液晶電視採用的是 120 Hz 倍速驅動，然而 Blue Phase 模式液晶面板的液晶回應時間短，因此無需加速 (Over Drive)，即可以實現 240 Hz 以上的高速驅動，而且用藍相模態的顯示器具有不需要配向膜以及超高速的反應時間等優點。 但當前藍相液晶所遭遇的難題有：(1) 溫寬短、(2) 工作電壓高；因此，在文獻中[3]使用高分子聚合來穩定藍相液晶可以有效的拉大藍相溫寬，本研究探討使用高分子網狀結構來擴大添加掌性旋光物質的藍相液晶溫度範圍以及對其工作電壓的影響。

Today LCD TVs are drived by 120 Hz speed, but blue phase liquid crystal mode LCD panel response time are short so that it is no need to over drive, which can achieve 240 Hz even more high-speed driving. And blue phase mode displays have no need with the membrane but ultra-fast response time and so on. However, the problems of blue phase liquid crystal are: (1) shortage of the blue phase temperature, (2) high working voltage. Therefore, in the literature [3] used the polymer to stabilize the blue phase liquid crystal that can effectively expand the blue phase temperature, so this study uses of polymer network structure to change the temperature and working voltage of blue phase liquid crystal with chiral materials.