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| Novel cell parameter determination of a twisted-nematic liquid crystal display | |
| 引用本文： | 黄霞,荆海,付国柱. Novel cell parameter determination of a twisted-nematic liquid crystal display[J]. 中国物理 B, 2008, 17(3): 950-953 |
| 作者姓名： | 黄霞 荆海 付国柱 |
| 作者单位： | Changchun Institute of Optics, Fine Mechanicsand Physics, Chinese Academy of Sciences; North Liquid CrystalEngineering Research and Development Center, Changchun rm130033, China；Graduate School of the Chinese Academy of Sciences,Beijing 100049, Chin;Changchun Institute of Optics, Fine Mechanicsand Physics, Chinese Academy of Sciences; North Liquid CrystalEngineering Research and Development Center, Changchun rm130033, China；Graduate School of the Chinese Academy of Sciences,Beijing 100049, Chin;Changchun Institute of Optics, Fine Mechanicsand Physics, Chinese Academy of Sciences; North Liquid CrystalEngineering Research and Development Center, Changchun rm130033, China |
| 基金项目： | Project supported by the NationalNatural Science Foundation ofChina (Grant No 60576056). |
| 摘 要： | In this paper a novel method is proposed to determine the cell parameters including the twist angle, optic retardation and rubbing direction of twisted-nematic liquid crystal displays （TNLCD） by rotating the TNLCD. It is a single-wavelength method. Because using subtraction equation of transmittance as curve fitting equation, the influence of the light from environment and the absorption by polarizer, the sample of TNLCD and analyser on the transmittance is eliminated. Accurate results can also be obtained in imperfect darkness. By large numbers of experiments, we found that not only the experimental setup is quite simple and can be easily adopted to be carried out, but also the results are accurate. |
| 关 键 词： | 液态晶体显示 扭曲角度 光学反应 摩擦面 |
| 收稿时间： | 2007-05-12 |
| 修稿时间： | 2007-08-20 |
Novel cell parameter determination of a twisted-nematic liquid crystal display |
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| Huang Xi,Jing Hai and Fu Guo-Zhu. Novel cell parameter determination of a twisted-nematic liquid crystal display[J]. Chinese Physics B, 2008, 17(3): 950-953 | |
| Authors: | Huang Xi Jing Hai Fu Guo-Zhu |
| Affiliation: | Changchun Institute of Optics, Fine Mechanicsand Physics, Chinese Academy of Sciences; North Liquid CrystalEngineering Research and Development Center, Changchun rm130033, China; Changchun Institute of Optics, Fine Mechanicsand Physics, Chinese Academy of Sciences; North Liquid CrystalEngineering Research and Development Center, Changchun rm130033, China；Graduate School of the Chinese Academy of Sciences,Beijing 100049, Chin |
| Abstract: | In this paper a novel method is proposed to determine the cellparameters including the twist angle, optic retardation and rubbingdirection of twisted-nematic liquid crystal displays (TNLCD) byrotating the TNLCD. It is a single-wavelength method. Because usingsubtraction equation of transmittance as curve fitting equation, theinfluence of the light from environment and the absorption bypolarizer, the sample of TNLCD and analyser on the transmittance iseliminated. Accurate results can also be obtained in imperfectdarkness. By large numbers of experiments, we found that not only theexperimental setup is quite simple and can be easily adopted to becarried out, but also the results are accurate. |
| Keywords: | liquid crystal display twistangle optical retardation rubbing direction |
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