good quality membrane switch panel for home appalince and OEM for brand customer
In general, the parts include 6-9 layer :
PMMA/Glass ① →glue②→circuit ③→ protect film④→glue⑤→printing film(PET/PC)⑥ →glue⑦→ diffusion⑧→glue⑨→PCB⑩→
customer's structure parts
OEM need customer's design or provide demand detail including size and circuit diagram