- 學位論文
探討反應型液晶用於製作微相位差膜性質之研究
Using Reactive Mesogens for prepared pattern retarder film and researched the properties
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摘要
本研究是利用UV反應型液晶塗佈於已預先成型且配向的微結構聚碳酸酯膜上，烘烤、UV曝光後製成微相位差膜，可將顯示器入射的線偏振光轉換成左旋、右旋兩不同方向的圓偏振光，再搭配偏光眼鏡來產生立體視覺的效果，這裡對製程進行最佳化並訂出各條件參數。 此外，以均勻配向的最佳摩擦強度為前提，我們對此值作些微的增減來進行實驗，探討微相位差膜內液晶分子的光學性質，包括分子傾斜角度與相位差、錨定能等，並對其進行分析；另一部分則是固定摩擦強度等實驗參數，而單純改變微相位差膜溝槽深度的設計，同樣進行光學性質分析，期望能找出結構的最佳設計值，對未來不同的應用面作分析探討。 以原子力顯微鏡來分析配向溝槽的表面型態，對平均粗糙度值與溝槽最大深度等作比較，且針對摩擦配向的缺點，包括靜電毛屑等進行改良。最後，測量不同摩擦強度下的接觸角，希望能對反應型液晶的錨定能趨勢做更近一步的探討。
並列摘要
The thesis is about using reactive mesogen coating on PC film that already fabricated the structure for align and designed shape, after heating and curing procedure obtain retardation film. Also know as Pattern Retarder. By this we can transfer the linearly polarized light to left and right two different circular polarized light. Combine the glass with polarizer we and filter the different polarized light to crate 3D image, we state the optimize procedure and parameter. Furthermore, using the rubbing strength parameter as the premise for uniform aligns, we slightly change this data for further experiment to discuss and analyze the optical properties of liquid crystal inside the film. For instance, retardation, anchoring energy, pre-tilt angle etc…On the other hand we fixed the rubbing parameter and change the depth of the film structure, also tested the optical properties, expected to progress the result of 3D image and apply for different products. By AFM scanned, we discussed the surface morphology included Ra and the maximum depth of rubbing groove, measure the align uniformity by circular light transmittance. We can manufacture the micro-groove by the other way in order to eliminate the defects of rubbing included static electricity or flue that cause disclination line. After obtain the optimized fabricate parameter by optical measurement, we research the surface energy by contact angle try to realized the accurate anchoring energy.
參考文獻
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