| 研究生: |
蔡宗穎 Tsai, Tzung-Ying |
|---|---|
| 論文名稱: |
利用氦氖雷射全息曝光製作液晶盒具有快速光學反應能力之研究 Study of Liquid Crystal Cells Capable of Fast Optical Response Processed with a Holographic He-Ne Laser Exposure |
| 指導教授: |
許家榮
Sheu, Chia-Rong |
| 學位類別: |
碩士 Master |
| 系所名稱: |
理學院 - 光電科學與工程學系 Department of Photonics |
| 論文出版年: | 2013 |
| 畢業學年度: | 101 |
| 語文別: | 中文 |
| 論文頁數: | 63 |
| 中文關鍵詞: | 光學反應時間 、全息曝光 |
| 外文關鍵詞: | optical response time, holographic exposure |
| 相關次數: | 點閱:63 下載:1 |
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液晶(liquid crystals, LCs)在光電元件的應用上,其光學反應時間是一項元件性能之重要參數。在本論文中,我們使用氦氖雷射全息曝光處理液晶盒中之液晶混合物,包括E7液晶、低濃度RM257光聚合物單體,以及紅光起始劑,藉由全息曝光方式使液晶混合物產生網狀聚合物平行於玻璃基板達成類薄膜(Film-like)結構,就如同對液晶層切割,形成數層厚度較小之結構,根據反應時間與液晶層厚度成平方正比的觀念,液晶盒之反應時間將可有效改善。
在相同的曝光角度,曝光時間下,不同的低濃度聚合物單體濃度曝光,都可以對液晶盒達到改善反應速度的效果。從實驗結果顯示,聚合物濃度與液晶反應時間並非線性關係,而是有一個最佳濃度比,幫助我們對液晶盒建立切層結構。
For electro-optical applications with liquid crystal (LC) devices, the parameter of optical response time is a very important role. In study, we use a He-Ne laser holographic exposure to process LC cells filled with mixture of LCs, RM257 of low concentrations and photo initiator. After holographic exposure, the mixture produced polymer network of film-like that parallel with the glass substrate. According to the response time proportional to the thickness of liquid crystal layer squared, they look like cutting multilayer for improving response time.
At the same exposure angle and time, the different low concentrations of polymer can make better response time after exposure. From the experimental results, concentration and response time are nonlinearly related. The best proportion of concentration can help us make dividing liquid crystal layer.
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校內:2023-01-01公開