A fine metal mask is used in OLED evaporation procedure. The OLED evaporation process requires a thin film with millions of specific patterns. The specific pattern is evaporated on the substrate in the OLED panel manufacturing process.

When integrating printed electronics technology with in-mold decoration (IMD), the circuit, touch, IC, and so forth, are concentrated in one part, which can be formed in 3D.The product is smaller, lighter and thinner which saves assembly time and cost.