Diy Membrane Key Switch Panel Customization 

When the panel layer button is not pressed, the film switch is in the normal state, the upper and lower contacts are disconnected, the isolation layer plays an isolation role on the upper and lower lines; When the film keyboard panel layer key is pressed down, the contact of the upper circuit deforms downward, and the lower line recombines to make the line conduction, the conduction line to the external connection instrument (substrate) to signal, so as to achieve its corresponding function; When the finger releases the button, the upper circuit contact bounces back, the circuit breaks, and the loop triggers a signal. PRODUCT DISPLAY