What is a touch keypad membrane switch membrane keypad?

2020-08-19

　The light touch keypad membrane switch is a specific switching element of the electrical connection activated by the multi-layer switch facility or touch activation. Simply put, it is an electronic switch that integrates the panel and the switch performance.


The structure of the membrane switch is simple, and the top layer is a graphic overlay, which is the top layer touched by the user's finger. Then go to the adhesive layer, upper circuit layer, isolation layer, lower circuit layer, and bottom adhesive layer in order. These are the layers of specific work induction. The user's finger touches the top keyboard, the membrane switch will respond quickly, and its response process is to transmit the response output layer by layer through this layer.


In addition to flexible membrane switches, there are membrane switches with built-in LEDs and metal domes. The structure of this type of membrane switch is similar to that of a flexible membrane switch. From the top layer to the bottom layer are thin film graphics overlay layer, LED fixed layer, adhesive layer, LED and metal dome layer, metal dome fixed layer, flexible circuit layer, and bottom adhesive layer.

Nowadays, membrane switch panels are widely used. Important applications such as industrial equipment control, medical machinery, household appliances, office facilities, automotive instruments, air conditioners, rice cookers, etc. are all applications of membrane switches.