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dc.contributor.author張庭瑞en_US
dc.contributor.authorTing-Jui Changen_US
dc.contributor.author王淑霞en_US
dc.contributor.author黃中垚en_US
dc.contributor.authorShu-Hsia Chenen_US
dc.contributor.authorJung-Y. Huangen_US
dc.date.accessioned2014-12-12T02:29:21Z-
dc.date.available2014-12-12T02:29:21Z-
dc.date.issued2001en_US
dc.identifier.urihttp://140.113.39.130/cdrfb3/record/nctu/#NT900614025en_US
dc.identifier.urihttp://hdl.handle.net/11536/69495-
dc.description.abstract液晶盒的邊界錨定能強弱會影響液晶分子的方向分佈,造成其電光效應的差異。我們製作了不同表面處理與摻雜手徵性分子的一系列光配向扭轉型液晶盒。使用不同的光配向材料可以得到錨定能具明顯差異的液晶盒。利用液晶連續體彈性形變理論與Rapini-Papoular表面自由能密度表示式,經由液晶盒的厚度與液晶分子的實際扭轉角度之測量結果,我們獲得了液晶盒的扭轉角錨定能。再配合預傾角與傾角錨定能的量測進行液晶盒電光效應的數值模擬。由實驗與模擬曲線的比較分析得到錨定能的強弱對液晶盒電光特性的影響,並進而探討R-P表面自由能密度表示式的適用性。zh_TW
dc.description.abstractThe anchoring properties of liquid crystal devices significantly influences the orientational distribution of liquid crystal molecules, and therefore results in different electro-optical properties. In this thesis, we prepared several twisted liquid crystal cells with different anchoring strengths by using photo-alignment technique. Based on the continuum mechanic model of liquid crystal medium and the Rapini-Papoular form of surface free energy density, we were able to accurately determine the azimuthal anchoring strengths with the measured cell thickness and actual twist angles. We further calculated the electro-optical properties of these liquid crystal cells based on the measured values of pretilt angle and polar anchoring strength. Our approach leads to a clear demonstration of the influence of anchoring strength on the EO properties of twisted LC devices. Our results indicate the simple R-P form of surface free energy is not appropriate for the LC devices with medium to weak anchoring strengths.en_US
dc.language.isozh_TWen_US
dc.subject錨定能zh_TW
dc.subject光配向zh_TW
dc.subjectanchoring energyen_US
dc.subjectphoto-alignmenten_US
dc.title非強錨定扭轉型液晶盒的電光特性研究zh_TW
dc.titleStudy on the electro-optical properties of non-rigid anchored twisted nematic liquid crystal cellsen_US
dc.typeThesisen_US
dc.contributor.department光電工程學系zh_TW
Appears in Collections:Thesis