2nd.: Capacitive Membrane Keyboard

1. Graphic overlay material: Glass, PMMA (Acrylic), Polyester, Polycarbonate
2. Circuit material: PET, FPC, PCB
3. Rear adhesive: 3M, Nitto, Tesa, Sony
4. Circuit assembly with light guide film, EL film, OCA film, LED, resistor, Capacitor etc.