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dc.contributor.author何岳暾en_US
dc.contributor.authorHo, Yueh-Tunen_US
dc.contributor.author劉柏村en_US
dc.contributor.authorLiu, Po-Tsunen_US
dc.date.accessioned2014-12-12T01:26:24Z-
dc.date.available2014-12-12T01:26:24Z-
dc.date.issued2011en_US
dc.identifier.urihttp://140.113.39.130/cdrfb3/record/nctu/#GT079567514en_US
dc.identifier.urihttp://hdl.handle.net/11536/41538-
dc.description.abstract目前液晶主要的光配向技術有三種,分別為聚合物穩定配向技術、線性偏振紫外光光配向技術與電場感應光配向技術等三種技術。光配向技術可以大幅提升與改善液晶顯示器之光效率不佳、對比不夠高、反應速度不夠快以及灰階反轉造成色偏等等問題。 本研究是以聚合物穩定配向技術為研究基礎,探討光配向技術之液晶分子配向不良的問題,而此液晶分子配向不良現象又與感光性高分子單體的分布均勻性有強相關。經實驗證實配向膜的電壓保持率會直接影響感光性高分子單體的分佈均勻性,配向膜的電壓保持率又與製程環境中的濕度以及時間有直接的關連性,這是因為配向膜材料所使用的聚亞醯胺會與環境中的水分子結合產生解離狀況而影響配向膜的電壓保持率,因此,造成感光性高分子單體的分佈均勻性異常而導致液晶分子配向不良的問題發生。 本實驗找出最佳的製程環境濕度管控與時間為:濕度控制在50%、製程時間控制在30分鐘以內可以得到最有效的改善。zh_TW
dc.description.abstractCurrently,there are three kinds of photo alignment technology for liquid crystal alignment。They are polymer sustained alignment、ultraviolet induced multi-domain vertical alignment and field-induced photo-reactive alignment。The photo alignment technology can be improved optical efficiency、lower contract ratio、slower response time and color shift due to gray scale inversion。 The study discuss abnormal liquid crystal alignment in polymer sustained alignment technology。We found that have strong relation between abnormal alignment and monomer distribution。By experiment result,uniformity of monomer distribution will be depend on voltage holding ratio of alignment film。The voltage holding ratio of alignment film will be depended on humidity and process time in processing environment。Because polyimide will be hydrolyze under high humidity environment and effect voltage holding ratio。Then the hydrolyze of polyimide due to non-uniformity distribution of monomer。 The best parameter of process are humidity under 50% and process time under 30 min in this study。en_US
dc.language.isozh_TWen_US
dc.subject光配向,聚合物穩定配向zh_TW
dc.subjectphoto alignment,polymer sustained alignmenten_US
dc.title光配向技術中液晶分子配向不良之研究zh_TW
dc.titleThe Study of Abnormal Liquid Crystal alignment in Photo Alignment Technologyen_US
dc.typeThesisen_US
dc.contributor.department電機學院電子與光電學程zh_TW
Appears in Collections:Thesis