Such encapsulation is the completion step of the OLED panel, made through vacuum deposition, to be not affected by external elements and used for a long time and it influences the life of the OLED panel.

Metal Foil produced by Poongwon Precision becomes the material for encapsulation that blocks the inflow of moisture and oxygen by covering the OLED substrate with encapsulation film in which organic and inorganic foils are overlapped.