Preparation of anisotropic films for liquid crystal display application

Chain-Shu Hsu*, Hwai Len Chen

*Corresponding author for this work

研究成果: Conference article

摘要

The photoinitated polymerization of 2-chloro-1, 4-phenylene bis[4-[6-(acryloyloxy)hexyloxy]benzoate](1M) and trans-1, 4-bis(4-(2-(2,3-epoxypropyloxy)-ethoxy)-phenyl)-cyclohexyldicarboxylate (3M) were studied. Both monomers exhibit a wide temperature range of nematic phase. The monomers were oriented in their nematic phase at a substrate having been coated with polyimide and unidirestionally rubbed with a nylon cloth. During polymerization, the ordering of the LC molecules was fixed, yielding a uniaxially crosslinked network. The clear LC networks exhibit a birefringence between 0.14 and 0.19, depending on the polymerization temperature. Finally, the nonmesogenic diluents, tetra(ethylene glycol) diacryalte and 1,2-bis(2,3-expoxypropyloxy)ethane were mixed with monomers 1M and 3M, subsequently decreasing the birefringences of the obtained LC networks. The LC networks containing non-mesogenic diluent exhibit not only a smaller birefringence but also a weaker birefringence dispersion in the visible region.

原文English
頁(從 - 到)46-52
頁數7
期刊Proceedings of SPIE - The International Society for Optical Engineering
3421
DOIs
出版狀態Published - 1 十二月 1998
事件Diplay Technologies II - Taipei, Taiwan
持續時間: 9 七月 199811 七月 1998

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