Membrane switch and membrane panel, which is internationally popular in recent years, is a set of decorative and functional products as one of the new electronic machine control system with switch button, panel features text, marks, trademarks, transparent window and display. Membrane switch has been widely used in intelligent electronic measuring instruments, medical equipment, computer control, numerical control machine tools, electronic weighing, postal communications, copiers, refrigerators, microwave, electric fans, washing machines, electronic games and other kinds of industrial and household products.