The shape design of the isolation layer of the membrane switch is very simple, that is, stick the self-adhesive paper on both sides of the membrane, and then punch the window hole at the place in contact with the circuit and the key of the panel, so that it can not only support the upper and lower circuits, but also isolate the upper and lower circuits.

The membrane switch is triggered by the key position on the panel. Generally, the circuit contact of the membrane switch is closed instantaneously under the action of external force to complete the transmission of instructions. This requires the membrane switch to accurately control the panel layer and circuit layer in the design.

（1） Materials selected for insulation layer

The isolation layer does not have high requirements for the original word. PVC film with relatively low price can be used to make it, but if polyester film is selected to make it, the quality and hardness of film switch will be more guaranteed. In order to make the double-sided adhesive tape paste easier, the film switch factory has designed and produced a special adhesive tape with pre coated adhesive layer, which makes the production process of the panel more simple.

（2） Thickness of insulation layer

The final thickness of the isolation layer is designed according to the key position of the membrane switch panel and the different shapes and sizes of the insulating window hole on the partition panel. The rationality of the key position design will have a great connection with the final operation sensitivity of the membrane switch and the good mechanism design of the membrane panel, so it should be selected and determined. The aperture standard and the thickness of the isolation layer of each membrane switch are different

The above is the little knowledge about film panel brought by TEDA, Dongguan film switch factory today. I hope it can help you. If you need film panel, film switch, PC panel and other products, you can leave a message on TEDA film switch's official website or contact us by telephone!