碘代物杂质对TFT液晶性能的影响

发布时间：2018-11-13 15:11

【摘要】：为了研究碘代物杂质对TFT液晶性能的影响,设计了不同劣化条件下TFT液晶的保存实验,进行了碘代物掺杂的浓度梯度实验,测试了混晶VHR随碘代物浓度变化的趋势。实验结果表明:在UV照射和加电的劣化条件下,液晶中的碘代物杂质会发生分解,明显降低TFT液晶的VHR参数。液晶中碘代物杂质含量越高,TFT液晶在劣化条件下的稳定性就越差。在本实验条件下,2×10-5浓度的碘代物,已经对液晶可靠性产生明显不良影响。
[Abstract]:In order to study the effect of iodine impurities on the properties of TFT liquid crystals, the preservation experiments of TFT liquid crystals under different degradation conditions were designed. The concentration gradient experiments of iodide doping were carried out, and the tendency of mixed crystal VHR with the concentration of iodide substitutes was tested. The experimental results show that under the condition of UV irradiation and electrification, the impurity of iodide in liquid crystal will decompose, and the VHR parameters of TFT liquid crystal will be reduced obviously. The higher the impurity content of iodine substitute in liquid crystal, the worse the stability of TFT liquid crystal under the condition of deterioration. Under the experimental conditions, 2 脳 10 ~ (-5) concentration of iodine substitute has a significant negative effect on the reliability of liquid crystal.
【作者单位】：石家庄诚志永华显示材料有限公司;河北省平板显示材料工程技术研究中心;
【分类号】：TN873.93

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