微凹版涂布弊病的因果分析和解决对策  

Coating Deffects Analysis for Microgravure coating of LCD components and correcting methods

作　　者：刘云剑[1] 邢成君[1] 彭朝利[1] 骆小红[1] 

机构地区：[1]中国乐凯胶片集团公司研究院,保定071054

出　　处：《信息记录材料》2009年第5期34-39,共6页Information Recording Materials

摘　　要：目前,随着平面显示器尤其是液晶显示器(LCD)工业的飞速发展,每一个液晶显示器的面板都包括了如下部分:彩色过滤器、偏光片、背光单元和IC驱动。这些部件的很多部分是通过不同的涂布方法来生产的。例如,光学薄膜防反射、防眩光和硬涂层保护薄膜。这些功能薄膜都需要非常高的涂层均匀性,譬如细竖道、竖条道、肋骨棱、空气夹带等等这些涂层缺陷是不允许的,并且涂层湿厚度必须在几个微米之间,干厚在几百个纳米之间,能够生产出涂层厚度在微米大小的功能薄膜的常规方法包括了凹版和微凹版涂布方法。本文介绍了微凹版涂布原理以及涂布工艺,结合实践总结微凹版涂布弊病现象,分析了微凹版涂布过程中易出现的涂布弊病原因,并提出了解决微凹版涂布弊病的方法,在微凹版涂布试验和放量生产过程中,采用这些方法来解决出现的微凹版涂布弊病问题,具有良好效果。The flat panel display, particularly the liquid crystal display （LCD）, is a fast growing industry. Each LCD panel consists of components such as color filter, polarizer, backlit unit, and drive IC. Many of these components are produced by various coating methods. For example, optical films such as anti-reflection, anti-glare, and hard coat films require high coating uniformity,with no tolerance of coating defects such as streaks, ribbing , air entrainment etc. , and very thin coating thickness. In which the wet coated thickness must be in the range of several micrometers, and several hundred nanometers after drying. Conventional methods for thin liquid film coating,including the principle and process of microgravure coating were introduced. Combined with the practice, the coating defects, possible reasons and methods of solving coating defects were introduced.

关 键 词：微凹版涂布 涂布弊病 比率 逆流分界线 顺流分界线 

分 类 号：TN873.93[电子电信—信息与通信工程] TS762.2[轻工技术与工程—制浆造纸工程]