標題: | Variable liquid crystal pretilt angles generated by photoalignment in homeotropically aligned azo dye-doped liquid crystals |
作者: | Fuh, Andy Ying-Guey Liu, Cheng-Kai Cheng, Ko-Ting Ting, Chi-Lung Chen, Che-Chang Chao, Paul Chang-Po Hsu, Hsu-Kuan 電機資訊學士班 Undergraduate Honors Program of Electrical Engineering and Computer Science |
公開日期: | 19-十月-2009 |
摘要: | This letter demonstrates the feasibility of producing variable liquid crystal (LC) pretilt angles using light-induced ripple structures (LIRSs) in homeotropically aligned azo dye-doped liquid crystals (ADDLCs). Illuminating homeotropically aligned ADDLCs with a linearly polarized light for a suitable period yields the LIRSs which provide LCs an anisotropic homogeneous anchoring force. Experimentally, the effective alignment force produced by the homeotropic alignment layer and the LIRSs determines the LC pretilt angle (24 degrees to 63.5 degrees), defined from the normal to the substrate. A no-bias pi cell for liquid crystal displays is demonstrated using this approach. (C) 2009 American Institute of Physics. [doi: 10.1063/1.3253413] |
URI: | http://dx.doi.org/10.1063/1.3253413 http://hdl.handle.net/11536/6559 |
ISSN: | 0003-6951 |
DOI: | 10.1063/1.3253413 |
期刊: | APPLIED PHYSICS LETTERS |
Volume: | 95 |
Issue: | 16 |
結束頁: | |
顯示於類別: | 期刊論文 |