"This is a revolutionary display product after LCD. Not as delicate as OLED but has the texture of OLED. More importantly, it can be made into a super-large screen after splicing." ■ 2~10 layer with 2N2 buildup structure. ■ High density LED pad with size 100X100 um, spacing 75 um. ■ LED pads were covered cross all over of PCB. ■ CAM's script for various pad size compensation. ■ LDI/DI/AVI. ■ Vacuum etching for fine line. ■ Controlled Anti-CAF. ■ CCD routing machine. ■ High density electric testing machine. ■ Controlled the black S/M's color deviation.