Principle and improving research of white mura defect in high PPI ADS product

SANG Sheng-guang; CHE Xiao-pan; WANG Jia-li; GUO Hong-guang; JING Yang-kun; LI Ze; YOU Wei

doi:10.3788/YJYXS20163105.0435

您当前的位置：

首页 >

文章列表页 >

Principle and improving research of white mura defect in high PPI ADS product

Material and Device | 更新时间：2020-08-12

- Principle and improving research of white mura defect in high PPI ADS product
- Chinese Journal of Liquid Crystals and Displays Vol. 31, Issue 5, Pages: 435-441(2016)
- 作者机构：
  
  合肥京东方光电科技有限公司Cell技术部,安徽合肥,230012
- 作者简介：
- 基金信息：
- DOI：10.3788/YJYXS20163105.0435
  CLC： TP394.1;TH691.9
- Received：23 December 2015，
  
  Revised：15 January 2016，
  
  Published：05 May 2016
- 稿件说明：
移动端阅览
桑胜光, 车晓盼, 王嘉黎等. 高PPI ADS产品白Mura不良产生原理及改善研究[J]. 液晶与显示, 2016,31(5): 435-441

SANG Sheng-guang, CHE Xiao-pan, WANG Jia-li etc. Principle and improving research of white mura defect in high PPI ADS product[J]. , 2016,31(5): 435-441
桑胜光, 车晓盼, 王嘉黎等. 高PPI ADS产品白Mura不良产生原理及改善研究[J]. 液晶与显示, 2016,31(5): 435-441 DOI： 10.3788/YJYXS20163105.0435.

SANG Sheng-guang, CHE Xiao-pan, WANG Jia-li etc. Principle and improving research of white mura defect in high PPI ADS product[J]. , 2016,31(5): 435-441 DOI： 10.3788/YJYXS20163105.0435.

摘要

现有传统TFT-LCD 生产工艺中

Rubbing工艺在生产高PPI ADS产品的过程中

在改善Rubbing Mura不良时会使用H Cloth

但使用H Cloth Glass在经过Rubbing后ODF Rubbing Cleaner清洗时会出现白Mura不良。经过对白Mura不良Panel的微观解析

并结合H Cloth性质分析出白Mura不良是由于H Cloth自身的聚醋酸脂颗粒经过Rubbing Cleaner聚集造成的。从Rubbing Cleaner清洗时改变Glass表面性质(醇类可以有效改变界面性质)入手

通过使用IPA对Glass进行清洗以改变聚醋酸脂疏水性

使得聚醋酸脂颗粒更易被Rubbing Cleaner清洗掉来改善白Mura不良

并结合生产实际定期对IPA进行更换以保持IPA浓度处于一个稳定的区间

使得高PPI ADS产品白Mura不良发生率由改善前的3.42%降低至改善后的0.11%

白Mura不良得到非常有效的改善。

Abstract

In the traditional Process of TFT-LCD

H Cloth is always used to improve Rubbing Mura in the production of High PPI ADS Products

but when H Cloth is used

the White Mura Defect will appear after Rubbing Cleaner. By analyzing of White Mura Defect micro appearance and the nature of H Cloth

the White Mura Defect is caused by the gathering effect of Acetate Polymer after Rubbing Cleaner. In this paper

we change Acetate from Hydrophobic to Hydrophilic by changing the surface property of glass in the Rubbing Cleaner (alcohol can effectively change the interface property) and the Acetate Polymer particle is easily to be cleaned. In actual production

we replace IPA at regular period to keep the IPA concentration in stable range. As a result

the White Mura is effectively improved and controlled and the defect ratio is greatly decreased from 3.42% to 0.11%.

关键词

Keywords

references

车春城.广视角FFS技术CELL研究与设计[D].成都:电子科技大学,2007. CHE C C. The Research and design of the technique of FFS CELL with wide angle of view [D]. Chengdu:University of Electronic Science and Technology of China, 2007. (in Chinese)

郑先锋,祝迎花,金婷婷,等. 高PPI产品下的取向膜画面品质改善研究[J]. 液晶与显示, 2015,30(4):608-615. ZHENG X F, ZHU Y H, JIN T T, et al. Research on improving picture quality of alignment film[J]. Chinese Journal of Liquid Crystals and Displays, 2015, 30(4):608-615. (in Chinese)

石天雷,杨国波,程石,等. Zara漏光和Rubbing Mura改善研究[J]. 液晶与显示,2012,27(2):208-211. SHI T L, YANG G B, CHENG S, et al. Zara and Rubbing Mura research[J]. Chinese Journal of Liquid Crystals and Displays, 2012, 27(2):208-211. (in Chinese)

高鸿锦,董友梅. 液晶与平板显示技术[M].北京:北京邮电大学出版社,2007:254-259. GAO H J, DONG Y M. Liquid Crystals and Flat Panel Display Technology[M]. Beijing:Beijing University of Posts and Telecommunications Press, 2007:254-259. (in Chinese)

习岗,李伟昌. 现代农业和生物学中的物理学[M].北京:科学出版社,2002 XI G, LI W C. The Physics of Modern Agriculture and Biology[M]. Beijing:Beijing University Press, 2002. (in Chinese) (请核对英文标题信息)

梁智权. 流体力学[M].重庆:重庆大学出版社,2002. LIANG Z Q. Hydromechanics[M]. Chongqing:Chongqing University Press, 2002. (in Chinese)

任文辉,林智群,彭道林. 液体表面张力系数与温度和浓度的关系[J]. 湖南农业大学学报(自然科学版),2004,30(1):77-79. REN W H, LIN Z Q, PENG D L. On the relationship between the liquid surface tension and the temperature and the concentration[J]. Journal of Hunan Agricultural University (Natural Sciences), 2004, 30(1):77-79. (in Chinese)

熊金平,俞宏英,孙冬柏,等. 醇、酸类添加剂对脱脂清洗液清洗效果的影响[J]. 化学清洗,1995,11(3):1-4. XIONG J P, YU H Y, SUN D B, et al. Affection of alcohol and acid additives on rinsing effect of grease-removing agent[J]. Chemical Cleaning, 1995, 11(3):1-4. (in Chinese)

田怡,高华,张闻斌,等. 表面活性剂在单晶硅太阳能电池片制绒中的作用[J]. 电子工艺技术,2012,33(4):234-237. TIAN Y, GAO H, ZHANG W B,et al. Effect of surfactant on texture of monocrystalline silicon solar cell[J]. Electronics Process Technology, 2012, 33(4):234-237. (in Chinese)

张静,李蘅,肖筱瑜. 疏水性有机高分子材料表面亲水性改善研究及应用现状[J]. 矿产与地质, 2003,17(1):87-89. ZHANG J, LI H, XIAO X Y.Study on surface modification of hydraphobic organic polymer material to improve its hydrophilicity and application[J]. Mineral Resources and Geology, 2003, 17(1):87-89. (in Chinese)

李本刚,陈正国. 表面活性剂溶液动态表面张力及吸附动力学研究[J]. 化学进展, 2005,17(2):233-241. LI B G, CHEN Z G. Advance on the study of dynamic surface tension and adsorption kinetics of surfactant solution[J]. Progress in Chemistry, 2005, 17(2):233-241. (in Chinese)

Views

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Research on improving picture quality of alignment film

Related Author

ZHENG Xian-feng

ZHU Ying-hua

JIN Ting-ting

WANG Ping

FANG Yuan

CHENG Jin-yan

LIU Cong-cong

Sukim

Related Institution

HeFei BOE Optoelectronics Technology Co., Ltd

AI问答

Address：No.3888 Dong Nanhu Road, Changchun, Jilin, China 130033 Postal code：130033
Tel：0431-86176059 Email：yjxs@ciomp.ac.cn
Technical support is provided by Beijing Founder electronics co., LTD 吉ICP备11002662号-17 京公网安备11010802024621
It is recommended to read the content of this site in Chrome&IE9+. Please switch to extreme mode in browser 360.
Cookies We use cookies to help provide and enhance our service and tailor content. By continuing, you agree to the use of cookies.

⁰