含有二色性染料的PDLC的光电性能

Electro Optical Properties of PDLC Incorporated with Dichroic Dye

用聚合分相法，在Ｅ－ ７ 液晶中掺入二色性液晶分散蓝，制成聚合物分散液晶膜。测定了它的光电性能。与不加二色性染料的聚合物分散液晶膜比较，膜对比度提高，响应时间τｏｎ 保持不变，松弛时间τｏｆｆ 略有增加。

Polymer dispersed liquid crystalline (PDLC) films containing dichroic dye were prepared by the polymerization of HEMA, BMA and E 7 incorporated with dichroic dye under UV irradiation. Their eletro optical properties were measured. The results show that comparison with PDLC without the dye, its contrast ratio was enhanced, although T on decreased; the sharpness and τ on were not improved, τ off was slightly improved. These phenomena were discussed.