标题: | Nanoparticle-doped polyimide for controlling the pretilt angle of liquid crystals devices |
作者: | Hwang, Shug-June Jeng, Shie-Chang Hsieh, I-Ming 影像与生医光电研究所 Institute of Imaging and Biomedical Photonics |
公开日期: | 2-八月-2010 |
摘要: | The pretilt angles of liquid crystal molecules can be controlled by using conventional polyimide (PI) alignment material doped with different concentrations of Polyhedral Oligomeric Silsequioxanes (POSS) nanoparticles, which have been observed to spontaneously induce vertical alignment. The addition of POSS in the homogenous PI changes the surface energy of the alignment layer and generates a variable pretilt angle. Experimental results demonstrate that the pretilt angle. p is a function of the POSS concentration, and can be tuned continuously over the range of 0 degrees<theta(p)<90 degrees. The polar anchoring energy of POSS/PI alignment layer is almost constant regardless of the POSS concentration. This technique is very simple and is compatible with methods familiar in the current LCD industry. (C) 2010 Optical Society of America |
URI: | http://dx.doi.org/10.1364/OE.18.016507 http://hdl.handle.net/11536/32315 |
ISSN: | 1094-4087 |
DOI: | 10.1364/OE.18.016507 |
期刊: | OPTICS EXPRESS |
Volume: | 18 |
Issue: | 16 |
起始页: | 16507 |
结束页: | 16512 |
显示于类别: | Articles |
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