Membrane Switch Keypad up and down line combination

Membrane Switch Keypad up and down line combination

There are two key modes of membrane switch. 

We know very well the touch switch type membrane buttons pad. This is the contact conductive key produced by the combination of metal shrapnel and thin membrane circuit. 

This kind of touch is adjustable, which is very common in life and work. The other is the combination of up and down lines. This is a kind of touch free button mode.

It uses the touch of the upper line and the lower line to generate electricity, so as to achieve the operation effect.

Then the Membrane button Swicth as shown in the title, using the combination of upper and lower lines.

First of all, it is necessary to design the sequence of the lower lines to keep up with the conductive points of the lines. 

In the design of the circuit points, the common points of them all need to lead out wires to connect the terminals. 

Then, on the protection display panel, you can select a variety of silk screen panels, silica gel panels, etc. Then The membrane switch keyboard with this combination of the upper and lower lines of the film buttons is very excellent quality Touch Switch.