基于轨道列车LCD产品的液晶模组制造工艺研究及提升  

Study on Manufacturing Technology of Liquid Crystal Module Based on an LCD Product for Rail Train and its Improvement

作　　者：贾涛 陈茂强 时文昌 赵磊 JIA Tao;CHEN Maoqiang;SHI Wenchang;ZHAO Lei(CRRC Qingdao Sifang Rolling Stock Research Institute Co.,Ltd.,Qingdao 266031,China)

机构地区：[1]中车青岛四方车辆研究所有限公司,山东青岛266031

出　　处：《铁道车辆》2024年第6期137-143,共7页Rolling Stock

摘　　要：近年来,随着轨道列车车型的不断丰富和个性化显示需求的日益增多,列车LCD产品尤其是液晶模组呈现出多品种和小批量的应用特点。由于品牌和型号众多,液晶模组的品质存在良莠差异,致使在应用过程中难免会暴露各类显示故障。文章介绍了液晶模组在装车应用后经常出现的各类显示故障,并以某LCD产品为切入点对显示故障进行了归类统计。文章在设计分析的基础上,对液晶模组的生产流程和制造工艺进行了深入研究,诊断出了生产中液晶模组容易出现的三类质量缺陷,结合列车LCD产品的应用特点,总结出了质量缺陷与装车应用后显示故障的对应关系。为避免液晶模组带有显示故障隐患,通过对制造工艺及质检流程进行优化,经过装车应用验证,有效保障了LCD产品的显示稳定性。In recent years,with continuous diversification of rail train types and increasing demand for personalized display,the LCD products for train,especially the liquid crystal module(LCM),have exposed the application characteristics of multiple varieties and small lots.With numerous brands and models,the LCMs are of varying quality,which has inevitably exposed various display faults in application.The article introduces various display faults frequently occurring after the LCMs are mounted on cars and takes a certain LCD product for example to make classification and statistics of its display faults.On the basis of design analysis,the article studies in depth the production process and the manufacturing technology of LCM,diagnoses three types of quality defects of LCM often occurring in production,and combining with the application characteristics of LCD products for train,summarizes the correspondence between the quality defects and the display faults during application on car.To avoid the hidden risk of display faults of LCM,the manufacturing technology and the quality control process have been optimized and the application on car has been verified,effectively guaranteeing the display stability of the LCD product.

关 键 词：轨道列车 LCD产品 液晶模组 显示故障 制造工艺 质量缺陷 

分 类 号：U271[机械工程—车辆工程]