
浏览全部资源
扫码关注微信
合肥鑫晟光电科技有限公司, 安徽 合肥 230001
[ "操彬彬(1987-), 男, 安徽安庆人, 2011年于北京化工大学获得硕士学位, 主要从事TFT工艺相关的技术研发工作。E-mail:caobinbin@boe.com.cn" ]
收稿日期:2019-06-13,
修回日期:2019-10-23,
录用日期:2019-10-23,
纸质出版日期:2020-02-05
移动端阅览
操彬彬, 刘幸一, 陈鹏, 等. TFT-LCD四角发黑Mura的研究与改善[J]. 液晶与显示, 2020,35(2):122-127.
Bin-bin CAO, Xing-yi LIU, Peng CHEN, et al. Research and improvement of dark corner Mura in TFT-LCD[J]. Chinese journal of liquid crystals and displays, 2020, 35(2): 122-127.
操彬彬, 刘幸一, 陈鹏, 等. TFT-LCD四角发黑Mura的研究与改善[J]. 液晶与显示, 2020,35(2):122-127. DOI: 10.3788/YJYXS20203502.0122.
Bin-bin CAO, Xing-yi LIU, Peng CHEN, et al. Research and improvement of dark corner Mura in TFT-LCD[J]. Chinese journal of liquid crystals and displays, 2020, 35(2): 122-127. DOI: 10.3788/YJYXS20203502.0122.
研究了一种长期THO信赖性过程中产生的四角发黑Mura。由于该Mura在TFT膜面可见,本文重点模拟分析了TFT侧在信赖性过程中电容的变化,确定了不良是存储电容(
C
st
)变化引发的电学不良,其机理为水汽不断进入第二绝缘层(PVX2),
C
st
持续增大,进而造成了TFT-LCD像素充电电压和灰阶的降低。通过降低沉积压强和提高Si/N比,PVX2膜层致密性和阻水性加强,模拟信赖性测试中电容的变化由19.6%降至0.5%,成功解决了该不良,避免了信赖性风险,提升了产品品质。
The dark corner Mura produced in the long-term process of THO reliability is studied. Because the Mura is visible on the TFT film surface
the capacitance change in TFT side during the process of reliability is mainly simulated and analyzed
and it is determined that it is a kind of electrical defect caused by the change of
C
st
. The mechanism is that water continuously enters into the PVX2 film and
C
st
increases at the same times
resulting in the reduction of the charging voltage and gray scale of TFT-LCD pixels. After improving the compactness of PVX2 film by decreasing pressure and increasing Si/N ratio in the deposition process
the change of capacitance decreases from 19.6% to 0.5% in the simulation reliability test because of the better capability of water resistance
which successfully solves the problem
avoids the risk in the reliability test and improves the product quality.
王 绍华 , 吴 飞 , 宣 津 , 等 . TFT-LCD工艺中角落白Mura的成因机理研究与改善 . 液晶与显示 , 2018 . 33 ( 7 ): 583 - 589 . http://yjyxs.com/CN/abstract/abstract10338.shtml http://yjyxs.com/CN/abstract/abstract10338.shtml .
S H WANG , F WU , J XUAN , 等 . Research and improvement of corner white Mura in TFT-LCD . Chinese Journal of Liquid Crystals and Displays , 2018 . 33 ( 7 ): 583 - 589 . http://yjyxs.com/CN/abstract/abstract10338.shtml http://yjyxs.com/CN/abstract/abstract10338.shtml .
郑 箫逸 , 袁 帅 , 崔 晓鹏 , 等 . TFT-LCD HADS显示模式下黑白Mura机理研究及设计优化 . 液晶与显示 , 2019 . 34 ( 3 ): 261 - 266 . http://yjyxs.com/CN/abstract/abstract10436.shtml http://yjyxs.com/CN/abstract/abstract10436.shtml .
X Y ZHENG , S YUAN , X P CUI , 等 . Mechanism research and design optimization of black and white mura in TFT-LCD HADS display mode . Chinese Journal of Liquid Crystals and Displays , 2019 . 34 ( 3 ): 261 - 266 . http://yjyxs.com/CN/abstract/abstract10436.shtml http://yjyxs.com/CN/abstract/abstract10436.shtml .
马 群刚 . TFT-LCD原理与设计 , : 北京 电子工业出版社 , 2011 . 306 .
Q G MA . The Principle and Design of TFT-LCD , : Beijing Electronic Industry Press , 2011 . 306 .
马 斐 , 程 冬炳 , 王 颖 , 等 . 聚丙烯酸类高吸水性树脂的合成及吸水机理研究进展 . 武汉工程大学学报 , 2011 . 33 ( 1 ): 4 - 9, 14 . DOI: 10.3969/j.issn.1674-2869.2011.01.002 http://doi.org/10.3969/j.issn.1674-2869.2011.01.002 .
F MA , D B CHENG , Y WANG , 等 . Research trend on reaction principle and water absorption mechanism of polyacrylic acid superabsorbent polymers . Journal of Wuhan Institute of Technology , 2011 . 33 ( 1 ): 4 - 9, 14 . DOI: 10.3969/j.issn.1674-2869.2011.01.002 http://doi.org/10.3969/j.issn.1674-2869.2011.01.002 .
李 森 , 尚 建兴 , 张 大伟 , 等 . TDDI产品Mo-Al-Mo膜层腐蚀原因分析及改善 . 液晶与显示 , 2017 . 32 ( 11 ): 847 - 852 . http://yjyxs.com/CN/abstract/abstract10239.shtml http://yjyxs.com/CN/abstract/abstract10239.shtml .
S LI , J X SHANG , D W ZHANG , 等 . Analysis and improvement of Mo-Al-Mo film corrosion in TDDI products . Chinese Journal of Liquid Crystals and Displays , 2017 . 32 ( 11 ): 847 - 852 . http://yjyxs.com/CN/abstract/abstract10239.shtml http://yjyxs.com/CN/abstract/abstract10239.shtml .
谢振宇. a-Si TFT用氮化硅薄膜的制备及其性能研究[D].成都: 电子科技大学, 2006: 12-15.
XIE Z Y. Preparation and properties of silicon nitride films for a-Si TFT[D]. Chengdu: University of Electronic Science and Technology, 2006: 12-15. (in Chinese)
任 现坤 , 马 玉英 , 张 黎明 , 等 . 管式PECVD工艺对氮化硅薄膜折射率的影响 . 山东科学 , 2012 . 25 ( 3 ): 58 - 61, 79 . DOI: 10.3976/j.issn.1002-4026.2012.03.012 http://doi.org/10.3976/j.issn.1002-4026.2012.03.012 .
X K REN , Y Y MA , L M ZHANG , 等 . Impact of tube PECVD process on the refractive index of silicon nitride thin film . Shandong Science , 2012 . 25 ( 3 ): 58 - 61, 79 . DOI: 10.3976/j.issn.1002-4026.2012.03.012 http://doi.org/10.3976/j.issn.1002-4026.2012.03.012 .
杨 爱龄 , 张 秀淼 , 邵 迪玲 . PECVD氮化硅膜的性质与生长条件的关系 . 杭州大学学报 , 1990 . 17 ( 2 ): 174 - 183 . DOI: 10.3321/j.issn:1008-9497.1990.02.008 http://doi.org/10.3321/j.issn:1008-9497.1990.02.008 .
A L YANG , X M ZHANG , D L SHAO . Correlations between the properties of PECVD SIN films and their deposition conditions . Journal of Hangzhou University , 1990 . 17 ( 2 ): 174 - 183 . DOI: 10.3321/j.issn:1008-9497.1990.02.008 http://doi.org/10.3321/j.issn:1008-9497.1990.02.008 .
0
浏览量
133
下载量
1
CSCD
关联资源
相关文章
相关作者
相关机构
京公网安备11010802024621