黑矩阵遮挡法修复液晶显示屏亮点成功率的研究  

The Research about the Success Ratio of using Black Matrix Covering Method to Repair TFT-LCD's bright Pixel defect

作　　者：蒋耀华[1] 陈思[1] 

机构地区：[1]北京京东方光电科技有限公司,北京100176

出　　处：《现代显示》2013年第5期10-12,共3页Advanced Display

摘　　要：液晶显示屏由于其生产工艺复杂,在制作过程中会出现点缺陷,最常见的是亮点。一般的维修方法是通过激光破坏控制该像素电路的方法使之成为暗点。最近发展了一种使用激光将亮点周围的黑矩阵进行颗粒化然后推入像素上进行遮挡的修复方式,但成功率不是很高。通过研究不同颜色对光波能量吸收的理论,并通过一系列实验,将原来红、绿、蓝像素使用同一激光能量更改为使用不同的激光能量,找到各自相应合适的激光能量,使得维修成功率大大提高至接近100%。Pixel defects especially bright pixel defects happen among the TFT-LCD （thin film transistor-liquid crystal display）productive process because of the complex manufacturing process. Normal repair method is to destroy the pixel＇s circuit by laser to make it dark. Recently a new repair method of covering the pixel using black matrix granulation by laser is developed. But its success ratio is lower than expected. With the theory of different colors absorbing light energy and some experiment, the repair success ratio is sharply raised to nearly 100% by Red, Green,Blue pixel respectively using different laser power instead of the same power.

关 键 词：激光能量 亮点修复 成功率 

分 类 号：TH122[机械工程—机械设计及理论]