首页 > 论文 > 液晶与显示 > 33卷 > 3期(pp:188-194)

基于ANSYS液晶玻璃基板的应力分析

Stress analysis of LCD glass substrate based on ANSYS

  • 摘要
  • 论文信息
  • 参考文献
  • 被引情况
  • PDF全文
分享:

摘要

为了管控紫外光固化工艺过程掩膜版的裂纹, 基于ANSYS对受石英棒吸附的液晶玻璃基板的结构应力及升降温过程的热应力进行仿真分析, 讨论了不同材料和不同厚度玻璃基板的结构应力及热应力变化。结构应力分析结果表明, 基板挠度、等效应力和弯曲应力最大值均出现在中部; 基板厚度增加时, 最大应力值显著减小。热应力分析结果表明, 当玻璃基板存在温度梯度时, 升温较大的区域, 玻璃基板挠度更大; 随着温度先增大后减小, 玻璃基板挠度、等效应力与弯曲应力均先增大后减小, 且升降温过程中基板应力变化显著, 等效应力变化最大, 弯曲压应力变化较小, 弯曲拉应力变化最小。玻璃基板等效应力和弯曲拉应力最大值分别达到44.8 MPa和5.79 MPa。优化设备降温系统, 降低玻璃基板各区域的温度梯度与基板升温值等可有效防止玻璃破裂的发生。

Abstract

Structural stress and thermal stress of LCD glass substrate absorbed by quartz-rod was studied by numerical method. The change of glass structure stress and thermal stress of different material and different thickness glass was discussed. The results of structural stress analysis show that the maximum deflection, equivalent stress and bending stress are in the middle of glass. When the thickness of the substrate increases, the maximum stress value decreases significantly. The thermal stress analysis shows that when the glass substrate has a temperature gradient, the glass substrate is more deflected with the larger heated area. With the decrease of the temperature, the deflection, equivalent stress and bending stress of the glass substrate are increased first, then the stress of the substrate is significant in the process of cooling. As the temperature increases after the first decreases, the deflection, equivalent stress and bending stress of glass substrate firstly increases then decreases, and the substrate stress changes significantly in the process, equivalent stress changes most, bending compressive stress changes smaller, bending tensile stress changes smallest. The maximum values of the equivalent stress and bending stress of glass substrate are 44.8 MPa and 5.79 MPa respectively. Reducing the temperature gradient and the heating value of the glass substrate can effectively prevent the glass cracking.

Newport宣传-MKS新实验室计划
补充资料

中图分类号:O348.7

DOI:10.3788/yjyxs20183303.0188

所属栏目:材料与器件

收稿日期:2017-09-08

修改稿日期:2017-10-30

网络出版日期:--

作者单位    点击查看

刘 洋:福州京东方光电科技有限公司, 福建 福州 350000
胡 亮:福州京东方光电科技有限公司, 福建 福州 350000
洪性坤:福州京东方光电科技有限公司, 福建 福州 350000
朱载荣:福州京东方光电科技有限公司, 福建 福州 350000
桂继维:福州京东方光电科技有限公司, 福建 福州 350000
陈 栋:福州京东方光电科技有限公司, 福建 福州 350000
王维维:福州京东方光电科技有限公司, 福建 福州 350000
聂学政:福州京东方光电科技有限公司, 福建 福州 350000
章 亭:福州京东方光电科技有限公司, 福建 福州 350000

联系人作者:刘洋(liuyangfz@boe.com.cn)

备注:刘洋(1990-), 男, 安徽阜阳人, 硕士, 工程师, 2016年于中南大学获得硕士学位, 现任职于福州京东方光电科技有限公司, 主要从事液晶面板制造Assy工艺的研究。

【1】马眷荣, 臧曙光, 丁丽梅.夹层玻璃力学模型的探讨[J].航空材料学报, 1998, 18(3): 57-61.
MA J R, ZANG S G, DING L M. Study of laminated glass mechanical model [J]. Journal of Aeronautical Materials, 1998, 18(3): 57-61. (in Chinese)

【2】SURANAK S, SOREM R M. Curved shell elements based on hierarchical p-approximation in the thickness direction for linear static analysis of laminated composites [J]. International Journal for Numerical Methods in Engineering, 1990, 29(7): 1393-1420.

【3】戴福隆.现代光测力学[M].北京: 科学出版社, 1990: 77-103.
DAI F L. Modern Optical Dynamics [M]. Beijing: Science Press, 1990: 77-103. (in Chinese)

【4】李亚利, 张方辉.TFT-LCD切割裂片工艺参数探讨[J].液晶与显示, 2006, 21(1): 43-47.
LI Y L, ZHANG F H. Parameters of cutting and splitting glass substrates process of TFT-LCD [J]. Chinese Journal of Liquid Crystals and Displays, 2006, 21(1): 43-47. (in Chinese)

【5】张维佳, 岳锡华, 范学涛, 等.飞机座舱风档复合玻璃结构优化设计[J].北京航空航天大学学报, 1997, 23(2): 141-146.
ZHANG W J, YUE X H, FAN X T, et al. Optimal design of multilayer composite-glass with transparent conduction films [J]. Journal of Beijing University of Aeronautics and Astronautics, 1997, 23(2): 141-146. (in Chinese)

【6】KLOUZEK J, NEMEC L, ULLRICH J. Modelling of the refining space working under reduced pressure [J]. Glass Science and Technology, 2000, 73(11): 329-336.

【7】BAUERJ, ROGER U, SIMONS P. Validation of a mathematical glass tank model [J]. Glass Science and Technology, 1999, 72(6): 171-181.

【8】WANGJ, BREWSTER B S, MCQUAY M Q, et al. Validation of an improved batch model in a coupled combustion space/melt tank/batch melting glass furnace simulation [J]. Glass Science and Technology, 2000, 73(10): 299-307.

【9】韩文梅.基于ANSYS航空层合玻璃的热应力分析[J].兵器材料科学与工程, 2010, 33(6): 1-3.
HAN W M. Thermal stress analysis of aerial laminated glass based on ANSYS [J]. Ordnance Material Science and Engineering, 2010, 33(6): 1-3. (in Chinese)

【10】廖英强, 苏建河, 柯善良.ANSYS在复合材料仿真分析中的应用[J].纤维复合材料, 2006, 23(1): 63-66.
LIAO Y Q, SU J H, KE S L. Application of ANSYS in composite simulation analysis [J]. Fiber Composites, 2006, 23(1): 63-66. (in Chinese)

【11】汤何锐, 韩建军, 王静, 等.无碱铝硼硅酸盐玻璃组成及结构研究进展[J].电子玻璃技术2016, 48: 21-26.
TANG H R, HAN J J, WANG J, et al. Research progress on the composition and structure of alkali-alumina silicate glass [J]. Electronic Glass Technology, 2016,48: 21-26. (in Chinese)

【12】张磊.TFT-LCD基板玻璃配方及工艺性能研究[D].北京: 北京工业大学, 2011.
ZHANG L. Study on the composition and technical properties of substrate glasses for TFT-LCD [D]. Beijing: Beijing University of Technology, 2011. (in Chinese)

引用该论文

LIU Yang,HU Liang,HONG Xing-kun,ZHU Zai-rong,GUI Ji-wei,CHEN Dong,WANG Wei-wei,NIE Xue-zheng,ZHANG Ting. Stress analysis of LCD glass substrate based on ANSYS[J]. Chinese Journal of Liquid Crystals and Displays, 2018, 33(3): 188-194

刘 洋,胡 亮,洪性坤,朱载荣,桂继维,陈 栋,王维维,聂学政,章 亭. 基于ANSYS液晶玻璃基板的应力分析[J]. 液晶与显示, 2018, 33(3): 188-194

您的浏览器不支持PDF插件,请使用最新的(Chrome/Fire Fox等)浏览器.或者您还可以点击此处下载该论文PDF