| 초록 |
The blue phases (BPs) of liquid crystal are intermediate phase which appear in a very narrow temperature range (~1K). Those phases occur in adjusting temperature between a chiral nematic phase and an isotropic phase. Commonly observed BPs are BPI and BP II which's structures were clearly investigated as body centered cubic and simple cubic. Those necessary to estimate the specific properties of BPs, respectively. In this study, the chiral pitch dependence of blue phases temperature range was evaluated at chiral nematic LC mixture (LC / chiral dopant) using wedge cell. Through this experiment, we proposed the composition optimizing of the chiral nematic liquid crystals mixture for extending the temperature range of blue phase II. |
