Relationship between alignment film and image sticking

LIU Xiao-na; SONG Yong-zhi; XU Chang-jian; ZHOU Bo; MA Guo-jing; CHEN Song-fei; YUAN Jian-

doi:10.3788/YJYXS20142903.0317

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Relationship between alignment film and image sticking

Table of contents | 更新时间：2020-08-12

- Relationship between alignment film and image sticking
- Chinese Journal of Liquid Crystals and Displays Vol. 29, Issue 3, Pages: 317-321(2014)
- 作者机构：
  
  北京京东方显示技术有限公司 Cell工艺开发部, 北京 100176
- 作者简介：
- 基金信息：
- DOI：10.3788/YJYXS20142903.0317
  CLC：
- Received：08 June 2013，
  
  Revised：14 August 2013，
  
  Published Online：09 September 2013，
  
  Published：25 April 2014
- 稿件说明：
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刘晓那, 宋勇志, 徐长健, 周波, 马国靖, 陈松飞, 袁剑峰, 林承武, 邵喜斌. 配向膜材料与面残影的关联性研究[J]. 液晶与显示, 2014,29(3): 317-321

LIU Xiao-na, SONG Yong-zhi, XU Chang-jian, ZHOU Bo, MA Guo-jing, CHEN Song-fei, YUAN Jian-feng, LIN Cheng-wu, SHAO Xi-bin. Relationship between alignment film and image sticking[J]. , 2014,29(3): 317-321
刘晓那, 宋勇志, 徐长健, 周波, 马国靖, 陈松飞, 袁剑峰, 林承武, 邵喜斌. 配向膜材料与面残影的关联性研究[J]. 液晶与显示, 2014,29(3): 317-321 DOI： 10.3788/YJYXS20142903.0317.

LIU Xiao-na, SONG Yong-zhi, XU Chang-jian, ZHOU Bo, MA Guo-jing, CHEN Song-fei, YUAN Jian-feng, LIN Cheng-wu, SHAO Xi-bin. Relationship between alignment film and image sticking[J]. , 2014,29(3): 317-321 DOI： 10.3788/YJYXS20142903.0317.

摘要

利用mini-cell作为评价平台，从配向膜材料自身特性角度，对配向膜材料与面残影之间的关联性进行了综合研究。一方面，配向膜材料自身优异的稳定性有助于维持电压保持率（VHR）；另一方面，配向膜材料自身的低电阻率特性有助于存储电荷的释放，利于实现较低的残余电流（RDC）。而当配向膜材料的RDC和高低温间VHR变化值同时处于较低水平时，可以获得面残影水平较低的TFT-LCD模块。因此，利用mini-cell对配向膜材料进行评估，通过比较RDC以及VHR数值，可以间接实现对TFT-LCD的残影结果评估，为实际生产中产品残影的改善提供了基础理论指导，具有重要的指导性作用。

Abstract

From the perspective of the alignment materials

the relationship between alignment materials and image sticking has been studied thoroughly by using mini-cell as a platform.On the one hand

excellent stability of alignment film benefits Voltage Holding Residual (VHR); On the other hand

lower resistivity of alignment film is good for the release of residual current

which contributes to lower Residual of Direct Current (RDC).Good VHR and RDC play a key role in decreasing the level of image sticking.Therefore

mini-cell is a convenient way to evaluate the alignment materials

and the image sticking of TFT-LCD modules can be forecasted by analyzing the value of RDC and VHR.It provides guiding theory for bettering image sticking in production.

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references

Nanno Y, Mini Y, Takeda M E,et al.Characterization of sticking effects of TFT-LCD[C]//SID 90 Digest,California, USA:SID,1990:404-407.[2] Huang P W, Liang B J.Study on image sticking phenomenon in STN LCD [D]. Taiwan: DMC, 2003:667.[3] Stojmenovik G, Neyts K, Vermael S,et al.The influence of the driving voltage and ion concentration on the lateral ion transport in nematic liquid crystal displays [J].J. Appl. Phys.,2005, 44(8): 6190-6195.[4] Neyts K, Vermael S, Desimple C, et al.Lateral ion transport in nematic liquid crystal devices [J].J. Appl. Phys.,2003, 94(6):3891-3896.[5] Mizusaki M,Nakanishi Y,Yoshimura Y,et al. Influence of ion on voltage holding ratio in LCD[C]//IDW'08 Digest,Niigata,Japan:lDW,2008: 39-42.[6] 李永忠,纪伟丰,周炎宏. STN-LCD残影显示的原理分析及实验研究[J]. 液晶与显示, 2011, 2(6): 733-740. Li Y Z, Ji W F, Zhou Y H.Research of image-retention phenomenon in STN-LCD [J].Chines Journal of Liquid Crystals and Displays,2011, 26(6): 733-740. (in Chinese)[7] 田园,张亚星,孙玉宝 .取向层厚度对液晶层分压的影响[J]. 液晶与显示, 2010, 25(4): 588-592. Tian Y, Zhang Y X, Sun Y B. Effect of polyimide thickness on voltage grading of liquid crystal layer [J].Chines Journal of Liquid Crystals and Displays,2010, 25(4): 588-592. (in Chinese)[8] 张武勤. 液晶面板PI层电荷累积和释放过程分析[J]. 液晶与显示, 2010, 25(3): 351-354. Zhang W Q.Analysis of electric charges accumulation and release in LCD panel PI layer [J].Chines Journal of Liquid Crystals and Displays,2010, 25(3): 351-354. (in Chinese)

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