Chinese Optics Letters, 2020, 18 (3): 033501, Published Online: Mar. 10, 2020  

Influence of γ-Fe2O3 nanoparticles doping on the image sticking in VAN-LCD Download: 739次

Author Affiliations
1 School of Sciences, Hebei University of Technology, Tianjin 300401, China
2 School of Physical Science and Technology, Southwest University, Chongqing 400715, China
3 Hebei Jiya Electronics Co., Ltd., Shijiazhuang 050071, China
4 Hebei Provincial Research Center of LCD Engineering Technology, Shijiazhuang 050071, China
Abstract
Image sticking in liquid crystal display (LCD) is related to the residual direct current (DC) voltage (RDCV) on the cell and the dynamic response of the liquid crystal materials. According to the capacitance change of the liquid crystal cell under the DC bias, the saturated RDCV (SRDCV) can be obtained. The response time can be obtained by testing the optical dynamic response of the liquid crystal cell, thereby evaluating the image sticking problem. Based on this, the image sticking of vertical aligned nematic (VAN) LCD (VAN-LCD) with different cell thicknesses (3.8 μm and 11.5 μm) and different concentrations of γ-Fe2O3 nanoparticles (0.017 wt.%, 0.034 wt.%, 0.051 wt.%, 0.068 wt.%, 0.136 wt.%, 0.204 wt.%, and 0.272 wt.%) was evaluated, and the effect of nano-doping was analyzed. It is found that the SRDCV and response time decrease firstly and then increase with the increase of the doping concentration of γ-Fe2O3 nanoparticles in the VAN cell. When the doping concentration is 0.034 wt.%, the γ-Fe2O3 nanoparticles can adsorb most of the free impurity ions in liquid crystal materials, resulting in 70% reduction in the SRDCV, 8.11% decrease in the decay time, and 15.49% reduction in the rise time. The results show that the doping of γ-Fe2O3 nanoparticles can effectively improve the image sticking of VAN-LCD and provide useful guidance for improving the display quality.

Ningning Liu, Mohan Wang, Zongyuan Tang, Lin Gao, Shuai Jing, Na Gao, Hongyu Xing, Xiangshen Meng, Zhenghong He, Jian Li, Minglei Cai, Xiaoyan Wang, Wenjiang Ye. Influence of γ-Fe2O3 nanoparticles doping on the image sticking in VAN-LCD[J]. Chinese Optics Letters, 2020, 18(3): 033501.

引用该论文: TXT   |   EndNote

相关论文

加载中...

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!