Enhancement of electrical conductivity during the femtosecond laser trimming process for OLED repair

摘要: Abstract In OLED panel repair process, femtosecond laser ablation has been adopted for last 10 years. Because process can be performed with negligible thermal effect, it is suitable modifying the organic materials whose lifetime negatively affected by heat. of it, applied to such as elimination internal debris, disconnection over connected electrodes, and etc. However, limitedly certain types defects. order increase a production yield, various defects should treated. Thus, additive needs developed. few decades, research groups have developing electrode printing techniques. But very hard print an width 1 µm scale so far. Therefore, we suggest new technique that combines subtractive methods. It conductive material printed micrometers followed trimming scale. During (EPFLT) could enhance electrical conductivity electrode. After EPFLT average electrodes increases from 1.51ⅹ107 S/m 2.31ⅹ107 S/m. Here, carefully claim heat accumulation during causes annealing enhanced.