高温接着力对液晶气泡的影响

Effect of high temperature adhesion on liquid crystal bubbles

本文对大尺寸产品中发生的高温运行液晶气泡不良进行了系统的分析与研究,从不良现象、机理假设出发,通过实验复现,总结出该不良的根因封框胶在高温环境下,其接着力大幅下降,导致产生液晶气泡不良。论证了通过选用高Tg点封框胶材料和优化接着界面,提升其高温接着力,从而有效地解决此不良,确保产品品质,对提升液晶显示器生产良率和客户满意度具有重要意义。

The liquid crystal bubble defect occurred in large-size products under high-temperature-operation-test are systematically analyzed and summarized from the occurrence of the defect,hypotheses on the mechanism,and through experimental tests to verify the hypothesis mechanism.It is concluded that the adhesive of the sealant is reduced greatly in the high temperature environment,resulting in the formation of liquid crystal bubble defect.At the same time,it is demonstrated that by selecting sealant materials with high Tg point and optimizing the bonding interface,the high-temperature adhesion is improved,thereby the problem is solved effectively,the product quality is ensured,and the production yield of LCD monitors and customer satisfaction are improved.