Analysis of FFS image sticking with negative liquid crystal

XU Ya-qin; SU Zi-fang; ZHONG Smart; GUAN Xing; LIU Ying-ming

doi:10.3788/YJYXS20153003.0399

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Analysis of FFS image sticking with negative liquid crystal

Material Physics & Chemistry | 更新时间：2020-08-12

- Analysis of FFS image sticking with negative liquid crystal
- Chinese Journal of Liquid Crystals and Displays Vol. 30, Issue 3, Pages: 399-403(2015)
- 作者机构：
  
  昆山龙腾光电有限公司, 江苏昆山 215301
- 作者简介：
- 基金信息：
- DOI：10.3788/YJYXS20153003.0399
  CLC： TN27
- Received：11 September 2014，
  
  Revised：09 October 2014，
  
  Published：05 June 2015
- 稿件说明：
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许雅琴, 苏子芳, 钟德镇, 关星, 刘英明. 基于使用负性液晶的边沿场切换模式的局部残影分析[J]. 液晶与显示, 2015,30(3): 399-403

XU Ya-qin, SU Zi-fang, ZHONG Smart, GUAN Xing, LIU Ying-ming. Analysis of FFS image sticking with negative liquid crystal[J]. , 2015,30(3): 399-403
许雅琴, 苏子芳, 钟德镇, 关星, 刘英明. 基于使用负性液晶的边沿场切换模式的局部残影分析[J]. 液晶与显示, 2015,30(3): 399-403 DOI： 10.3788/YJYXS20153003.0399.

XU Ya-qin, SU Zi-fang, ZHONG Smart, GUAN Xing, LIU Ying-ming. Analysis of FFS image sticking with negative liquid crystal[J]. , 2015,30(3): 399-403 DOI： 10.3788/YJYXS20153003.0399.

摘要

随着液晶显示技术的发展

PPI越来越高

像素尺寸越来越小

穿透率的提升是一重要问题.负性液晶相对正性液晶具有高穿透率

较好的画面画质及较低的颜色偏差等优点

使得主流显示模式IPS、FFS使用负性液晶研究逐渐增多.但由于负性液晶自身特性

其影像残留较正性液晶更为严重

特别是模组粘合附近区域的局部面残.为了改善负性液晶局部影像残留

本文研究了实际样品影像残留严重区域与轻微区域不同测量数据

如温度、共电压(

com

)等

发现影像残留严重区域与轻微区域的公共电压出现漂移现象

分析了影响残影的因素

并提出改善方案

实测结果证明本文改善局部残影的方法是有效的.

Abstract

With the development of liquid crystal display technology

the higher PPI is

the smaller pixel is. The improvement of transmittance is an important issue. Compared with positive liquid crystal display

negative liquid crystal display has high transmittance

good color shift and display quality

so the negative liquid crystal is used in the main liquid crystal display

such as IPS and FFS modes. Nevertheless

for the physical characteristic of negative liquid crystal itself

the image sticking (IS) is more serious than positive crystal liquid

especially the area nearby the IC bonding. In order to improve the afterimage

we measured the different data

such as the temperature and common voltage (

com

) of the serious and slight area in the sample cell

and we found that the

com

voltage has different shift in the serious and slight area. The influence factors of IS were analyzed

and improvement method was proposed and it is effective to reduce the image sticking.

关键词

Keywords

references

Less H, Lee S L, Kim H Y. Electro-optic characteristics and switching principle of a nematic liquid crystal cell controlled by fringe-field switching [J]. Appl. Phys. Lett.,1998, 73: 2881-2883. [2] Lee S H, Lee S L, Kim H Y, et al. A novel wide-viewing-angle technology: ultra-trans view [C]. SID Symposium Digest, 1999, 30: 202-205.[3] 牟强. 液晶电视的广视角技术 [J]. 液晶与显示, 2005, 20(1): 67-71.Mou Q. Wide visual angle technology of TFT-LCDTV [J]. Chinese Journal of Liquid Crystals and Displays, 2005, 20(1): 67-71. (in Chinese)[4] 张少楠,郭小军,崔宏青.正负液晶在FFS中的比较和研究[J]. 液晶与显示, 2012, 29(3): 322-327.Zhang S N, Guo X J, Cui H Q. Study and comparison of positive and negative LC in FFS applications [J]. Chinese Journal of Liquid Crystals and Displays, 2014, 29(3): 322-327. ( in Chinese)[5] Chen Y, Luo Z Y, Peng F L,et al. High performance fringe-field switching with a negative dielectric anisotropy liquid crystal [J]. SID Symposium Digest, 2013, 28: 334-337.[6] Oh J, Lee S W, Oh K Y, et al. P-53: Automatic LCD Gamma curve optimization [C].SID Symposium Digest of Technical Papers, Blackwell Publishing Ltd, 2006, 37(1): 394-397.[7] Liu C T, Wang A, Hong H J, et al. 60.1: Color and image enhancement for large-size TFT-LCD TVs [C].SID Symposium Digest of Technical Papers, Blackwell Publishing Ltd, 2005, 36(1): 1730-1733.[8] Nanno Y, Mino Y, Takaeda M E,et al. Characterization of sticking effects of TFT-LCD [C]. SID Symposium Digest of Technical Papers, Blackwell Publishing Ltd, 1990, 21(1): 404-407.[9] Stomenovik 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 display [J]. Appl. Phys., 2005, 44(8): 6190-6195.

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