Improvement and mechanism analysis of TFT-LCD pink Mura

Dong WANG; Ji-yu WANG; Dan WANG; Rui-hua GUO; Hong-ming ZHAN; Xi CHEN; Xi-bin SHAO

doi:10.37188/CJLCD.2021-0080

您当前的位置：

首页 >

文章列表页 >

Improvement and mechanism analysis of TFT-LCD pink Mura

Display Technologyand Applications | 更新时间：2021-09-10

- Improvement and mechanism analysis of TFT-LCD pink Mura
- Chinese Journal of Liquid Crystals and Displays Vol. 36, Issue 9, Pages: 1264-1272(2021)
- 作者机构：
  
  北京京东方显示技术有限公司, 北京 100176
- 作者简介：
- 基金信息：
- DOI：10.37188/CJLCD.2021-0080
  CLC： TN873.93
- Received：31 March 2021，
  
  Revised：28 April 2021，
  
  Published：2021-09
- 稿件说明：
移动端阅览
Dong WANG, Ji-yu WANG, Dan WANG, et al. Improvement and mechanism analysis of TFT-LCD pink Mura[J]. Chinese journal of liquid crystals and displays, 2021, 36(9): 1264-1272.
DOI：

Dong WANG, Ji-yu WANG, Dan WANG, et al. Improvement and mechanism analysis of TFT-LCD pink Mura[J]. Chinese journal of liquid crystals and displays, 2021, 36(9): 1264-1272. DOI： 10.37188/CJLCD.2021-0080.

摘要

广色域、低功耗TFT-LCD在高温高湿运行测试时容易发生周边发粉不良，严重影响器件的视觉效果。本文研究了不同成分的绿色色阻、有源层与平坦层材料制成的微型液晶盒与TFT-LCD在光照、高温与高湿环境中的透过率变化情况，以及周边发粉的起始时间，明确发粉不良的根本原因为绿色色阻中的非金属配合物分子结构的Y颜料，且不良程度与产品边框、有源层与平坦层材料吸水率相关。通过使用高疏水性、高硬化度的绿色色阻材料与低吸水率的平坦层材料，在不损失TFT-LCD透过率的前提下，有效改善了TFT-LCD发粉不良，实现a-Si产品高温高湿运行测试（THO）运行1 000 h以上，a-IGZO产品运行500 h以上不产生发粉不良，并建立TFT-LCD显色核心的RGB色阻材料的成分管理基准，搭建发粉不良的生产线与实验室评价体系。

Abstract

Wide color gamut and low power TFT-LCD are prone to peripheral powdering during high temperature and high humidity operation test

which seriously affects the visual effect. In this paper

the transmittance deviation of the Mini Cell and the starting time of pink Mura of the TFT-LCD samples with different green color resin

active layer and flat layer during the high light

temperature and humidity environment are studied. Experimental results indicate that the root cause of pink Mura is Y pigment with non-metallic complex molecular structure in green color resin

and the Mura degree is also related to the TFT-LCD's frame and the water absorption of active layer and flat layer. Based on the no loss of material transmittance

the water vapor penetration into the effective display area of TFT-LCD is effectively reduced by using the green color resin with high hydrophobicity and high hardness and the flat layer with low water absorption

then improve the pink Mura of TFT-LCD to 1 000 h and 500 h for a-Si and a-IGZO TFT-LCD

respectively. Through the pink Mura improvement and mechanism analysis

the RGB color resin component management standard and the Fab./Lab. evaluation system of the pink Mura are established.

关键词

Keywords

references

徐利燕 , 喻娟 , 刘冬 , 等 . 光照对ADS模式TFT-LCD Flicker漂移的影响 . 液晶与显示 , 2016 . 31 ( 5 ): 454 - 459 . DOI: 10.3788/YJYXS20163105.0454 http://doi.org/10.3788/YJYXS20163105.0454 .

L Y XU , J YU , D LIU , 等 . Illumination influence on the Flicker shift of ADS mode TFT-LCD . Chinese Journal of Liquid Crystals and Displays , 2016 . 31 ( 5 ): 454 - 459 . DOI: 10.3788/YJYXS20163105.0454 http://doi.org/10.3788/YJYXS20163105.0454 .

汪栋 , 张思凯 , 万冀豫 , 等 . TFT-LCD光致发绿不良改善、机理分析及研究 . 液晶与显示 , 2019 . 34 ( 1 ): 1 - 6 . DOI: 10.3788/YJYXS20193401.0001 http://doi.org/10.3788/YJYXS20193401.0001 .

D WANG , S K ZHANG , J Y WANG , 等 . Improvement, mechanism analysis and research of TFT-LCD light-caused green Mura . Chinese Journal of Liquid Crystals and Displays , 2019 . 34 ( 1 ): 1 - 6 . DOI: 10.3788/YJYXS20193401.0001 http://doi.org/10.3788/YJYXS20193401.0001 .

何璇. 彩色滤光片用光阻剂的配方及工艺研究[D]. 北京: 北京交通大学, 2008.

HE X. The formula of photo resist for color filter and its technology[D]. Beijing: Beijing Jiaotong University, 2008. (in Chinese)

操彬彬 , 刘幸一 , 陈鹏 , 等 . TFT-LCD四角发黑Mura的研究与改善 . 液晶与显示 , 2020 . 35 ( 2 ): 122 - 127 . DOI: 10.3788/YJYXS20203502.0122 http://doi.org/10.3788/YJYXS20203502.0122 .

B B CAO , X Y LIU , P CHEN , 等 . Research and improvement of dark corner Mura in TFT-LCD . Chinese Journal of Liquid Crystals and Displays , 2020 . 35 ( 2 ): 122 - 127 . DOI: 10.3788/YJYXS20203502.0122 http://doi.org/10.3788/YJYXS20203502.0122 .

Y S LEE , E K H YU , D H SHIM , 等 . Oxygen flow effects on electrical properties, stability, and density of states of amorphous In-Ga-Zn-O thin-film transistors . Japanese Journal of Applied Physics , 2014 . 53 ( 12 ): 121101 DOI: 10.7567/JJAP.53.121101 http://doi.org/10.7567/JJAP.53.121101 .

王涛. 新型酞菁化合物的合成与性质研究[D]. 北京: 北京工商大学, 2007.

WANG T. Study on the synthesis and properties of a new phthalocyanine compound[D]. Beijing: Beijing Technology and Business University, 2007. (in Chinese)

周春隆 , 穆振义 . 有机颜料化学及工艺学 , 3版 : 北京中国石化出版社 , 2014 .

C L ZHOU , Z Y MU . Organic Pigment Chemistry and Technology , 3rd ed : Beijing China Petrochemical Press , 2014 .

俞丽霞. 金属酞菁纳米材料的制备及光/电催化性能[D]. 镇江: 江苏大学, 2009.

YU L X. Preparation and photocatalytic/electrocatalytic properties of metallo phthalocyanine nano-materials[D]. Zhenjiang: Jiangsu University, 2009. (in Chinese).

罗艳, 田东亮, 杜锡光, 等. 中心金属对金属酞菁化合物电化学性质的影响[C]//第十四次全国电化学会议论文汇编. 扬州: 扬州大学, 2007: 969-970.

LUO Y, TIAN D L, DU X G, et al . Effect of central metals on electrochemical properties of metallo phthalocyanines[C]// Proceedings of the 14 th National electrochemical Conference . Yangzhou: Yangzhou University, 2007: 969-970.

党光 , 王振英 . 有机颜料分子结构对其性能的影响 . 染料工业 , 1994 . 31 ( 3 ): 12 - 14, 5 .

G DANG , Z Y WANG . Effect of molecular structure of organic pigment on its properties . Dyestuffs and Coloration , 1994 . 31 ( 3 ): 12 - 14, 5 .

修景锐 , 胡思怡 , 李金华 , 等 . 基于近红外量子点的荧光共振能量转移生物探针构建及应用 . 中国光学 , 2018 . 11 ( 1 ): 74 - 82 . DOI: 10.3788/CO.20181101.0074 http://doi.org/10.3788/CO.20181101.0074 .

J R XIU , S Y HU , J H LI , 等 . Construction and application of FRET biological probe based on near infrared InP/ZnS quantum dots . Chinese Optics , 2018 . 11 ( 1 ): 74 - 82 . DOI: 10.3788/CO.20181101.0074 http://doi.org/10.3788/CO.20181101.0074 .

王明亮 , 吴美红 , 吴伟兵 . 4-四氢喹啉酮的合成及发光性能 . 发光学报 , 2006 . 27 ( 3 ): 378 - 382 . DOI: 10.3321/j.issn:1000-7032.2006.03.019 http://doi.org/10.3321/j.issn:1000-7032.2006.03.019 .

M L WANG , M H WU , W B WU . Synthesis and fluorescent property of 4-tetrahydroquinolone . Chinese Journal of Luminescence , 2006 . 27 ( 3 ): 378 - 382 . DOI: 10.3321/j.issn:1000-7032.2006.03.019 http://doi.org/10.3321/j.issn:1000-7032.2006.03.019 .

T HORIUCHI , H MIURA , S UCHIDA . Highly-efficient metal-free organic dyes for dye-sensitized solar cells . Chemical Communications , 2003 . ( 24 ): 3036 - 3037 . DOI: 10.1039/b307819a http://doi.org/10.1039/b307819a .

林焱 , 曹怡 , 张宝文 . 激发态猝灭机理的稳态及时间分辨电子自旋共振研究 . 感光科学与光化学 , 2000 . 18 ( 4 ): 374 DOI: 10.3969/j.issn.1674-0475.2000.04.013 http://doi.org/10.3969/j.issn.1674-0475.2000.04.013 .

Y LIN , Y CAO , B W ZHANG . Studies on the mechanism of excited states by means of ESR and TR-ESR techniques . Photographic Science and Photochemistry , 2000 . 18 ( 4 ): 374 DOI: 10.3969/j.issn.1674-0475.2000.04.013 http://doi.org/10.3969/j.issn.1674-0475.2000.04.013 .

李双双 , 马蕊 , 刘芳 , 等 . 高吸水树脂的质量分数与其附着性能的关系 . 应用化学 , 2020 . 37 ( 1 ): 40 - 45 . DOI: 10.11944/j.issn.1000-0518.2020.01.190153 http://doi.org/10.11944/j.issn.1000-0518.2020.01.190153 .

S S LI , R MA , F LIU , 等 . Relationship between the concentration of superabsorbent resin and its adhesion properties . Chinese Journal of Applied Chemistry , 2020 . 37 ( 1 ): 40 - 45 . DOI: 10.11944/j.issn.1000-0518.2020.01.190153 http://doi.org/10.11944/j.issn.1000-0518.2020.01.190153 .

曾娅 , 魏雄周 , 万彬 , 等 . 全染料系光刻胶在液晶显示器中的应用 . 液晶与显示 , 2020 . 35 ( 9 ): 933 - 937 . DOI: 10.37188/YJYXS20203509.0933 http://doi.org/10.37188/YJYXS20203509.0933 .

Y ZENG , X Z WEI , B WAN , 等 . Application of all dye blue photoresist in liquid crystal display . Chinese Journal of Liquid Crystals and Displays , 2020 . 35 ( 9 ): 933 - 937 . DOI: 10.37188/YJYXS20203509.0933 http://doi.org/10.37188/YJYXS20203509.0933 .

Views

237

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Quantitative calculation and design method for the resistance of via hole connected by ITO

ESD related defects analysis and improvement design solution in TFT-LCD rubbing process

Etch-stop layer plasma chemical enhanced vapor deposition for oxide thin-film-transistor

Research and improvement of TFT-LCD Stage Mura

Related Author

Xi-bin SHAO

Xi CHEN

Hong-ming ZHAN

Rui-hua GUO

Dan WANG

Ji-yu WANG

Dong WANG

Yu-jie GAO

Related Institution

Beijing BOE Display Technology Co.， Ltd.

Wuhan BOE Optoelectronics Technology Co., Ltd.

HeFei XinSheng Optoelectronics Technology Co., Ltd.

Hefei Xin Sheng Photoelectric Technology Co., Ltd.

Beijing BOE Display Technology limited 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