Graphic Overlay Flat Membrane Keyboard 

Graphic Overlay Flat Membrane Keyboard This has a long service life. Compared with many ordinary panels, film panels have superior performance, are less prone to deformation and contamination, and have the advantages of high temperature resistance and high viscosity, which means that such panels have a longer lifespan than other panels. For modern people who pursue appearance value, the film panel has good appearance value, and the particularity of its own material improves its plasticity. Membrane switch is an operating system that integrates key functions, indicating elements and instrument panels. It consists of four parts: panel, upper circuit, isolation layer and lower circuit. When the membrane switch is pressed, the contacts of the upper circuit are deformed downward, and are in contact with the pole plate of the lower circuit. After the finger is released, the contacts of the upper circuit bounce back, the circuit is disconnected, and the circuit triggers a signal.Th…

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