What is the difference between membrane switch and touch switch

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What is the difference between membrane switch and touch switch

Membrane switches have made great progress in the market of waterproof, insurance and reliable performance due to the breakthrough of technical materials. Also because of its ease of installation and the decline in profits, membrane switches have gradually begun to replace the use of areas without touch switches. So the difference between the membrane switch and the touch switch? The following small series will explain to you.


The light touch switch has a small volume and is a standard piece. Its discretion and related parameters must be combined with business specifications, and its colors are various. However, the membrane switch can be customized according to the owner's requirements in size, appearance and color, etc. It is more convenient to use and sensitive. The membrane switch has good rigidity, open structure and waterproof structure, and has better adaptability to conditions.


The cost and price of the touch switch are relatively low, and there is no large price transfer due to the stability of raw materials in the market. However, the membrane switch is relatively expensive and has a large volume, which is greatly affected by the price factors of raw materials.


The touch switch and the membrane switch are both functional switches. The touch switch is used to quietly press the switch button to turn on the switch, and the switch can be turned off when the hand is released. Its internal structure is based on metal The shrapnel is forced to bounce to realize on and off.


The membrane switch is a key with its own leading route. Generally, the top layer is a panel with characters or patterns composed of materials such as pet or pc. The lower layer is a heat-conducting route. The center layer is a double-sided adhesive tape made of pet data that imitates the switching mode and plays an isolation role. The bottom layer is generally the contact and receiving route on pet materials. When pressing the key position on the surface layer with a finger, the key contact should be in contact with the contact on the upper layer to form a direct current.


Membrane switches are equally specialized in listening to the rise. The simple one is panel-type keys. The name is familiar. The master panels of many facilities use plastic film switches, which are widely used in electronic communication, electronic measurement instruments, light industry control, medical facilities, bus light industry, intelligent toys, household appliances and other fields.


Membrane switch is a multi-layer structure (three-dimensional) (non-locking) key switch composed of insulating data layers with fixed inertia, which integrates the performance of keys, instruction components, instrument panels, etc.


Membrane switches have the characteristics of beautiful appearance, long service life, simple structure, convenient installation, good hand feeling, and small footprint. They are widely used in all walks of life, from household appliances to high-tech products, and gradually replace The market of some light touch electric doors is having a large share in the market.


The basic task principle of the thin film is as follows: when the back plate is not pressed, the ground film switch is in the general form, its upper and lower contacts are in an open state, and the isolation layer isolates the upper and lower circuits.


When the membrane plate is pressed, the contact of the upper path deforms downward and remerges with the lower path to make the path conductive. The conductive path signals the internal connection instrument, thus completing its corresponding performance. When the finger is grasped, the upper path contact bounces back, the path is cut off, and the circuit triggers a signal.

Keywords: membrane switch, membrane panel, touch screen