含胺基甲酸酯之壓克力系高分子分散型液晶複合膜的製備及其光電性質研究

本研究主要目的在於探討含亞克力及胺基甲酸酯系之高分子基材不同配方對所形成之高分子分散液晶（Polymer-dispersed liquid crystal, PDLC）膜電光性質之影響。本研究計採用九種不同重量比之樹脂配方，製作成PDLC膜後，測量其電光性質（起始電壓（V（下標 th）），飽和電壓（V（下標 sat）），未施加電場穿透率(T(下標 off))，施加電場穿透率（T（下標 on））。結果發現當未施加電壓時，PDLC膜皆呈乳白色，當施加電壓高於驅動電壓時，PDLC膜立即轉變為透明狀態。研究中我們發現，當高分子基材內電壓達到1~1.5(V)時，外加電壓即為驅動電壓，而當膜內電壓達到5~5.5(V)時，外加電壓即為飽和電壓。由結果顯示，本研究所製作之PDLC膜可應用於電子顯示及光控制元件上。

A new type of polymer dispersed liquid crystal (PDLC) composite film has been made by polymerization of a mixture of acrylic, urethane acrylic resins and E63. The relationship between voltage in film and threshold (or saturated) voltage on the polymer-dispersed liquid crystal composite film has been discussed in this study. Electro-optical properties of nine PDLC films obtained through photo-curing process (V(subscript th) V(subscript sat) T(subscript off) T(subscript on)) were measured. It was found that the PDLC film shows opaque when uncharged. As the applied voltage became higher than the threshold voltage, the film turned cleat. We also found that when applied voltage is threshold the voltage in the PDLC film being 1~1.5V outside voltage drove the electric pressure. When the voltage reached 5V, the PDLC film was saturated by voltage. The results showed that the PDLC films can be utilized in making display and optical devices.