The difference between a light touch switch and a film switch
Some people mistake the patch switch as a film switch. The following small series will explain the difference between the patch switch and the film switch from many aspects. The specific content is as follows:
① From the function of the light touch switch and film switch difference comparison:
Light touch switch is used to gently press the switch button can make the switch on, when the release of the switch can be disconnected, its internal structure is to rely on the metal shrapnel force elastic movement to achieve on and off. Membrane switch is a key with its own circuit, usually the upper layer is composed of PET or PC materials with words or patterns panel, the lower layer is conductive circuit, the middle layer is a double-sided adhesive made of PET material to simulate the switch form and play an isolation role, the lower part is usually PET material contacts and connection circuit. Press the key part of the surface with the finger, the key contact and the contact of the lower part of the corresponding part of the contact and the formation of current connection.
(2) From the product structure of light touch switch and film switch difference comparison:
Light touch switch can not generate function independently, must be used with PCB board, to form a complete open control system; Thin film switch is the panel, switch, conductive line integration together, can form a complete control system, can provide customers with an overall switch solution.
③ From the cost and price of light touch switch and film switch difference comparison:
The cost and price of the touch switch are relatively low, and there will be no big price adjustment due to the fluctuations of raw materials in the market. The relative price of membrane switch is high, the volume is large, and it is greatly affected by the price of raw materials.
(4) From the production process of light touch switch and film switch difference comparison:
The process of light touch switch includes: stamping, injection molding, cleaning, assembly, molding, inspection and other processes; Membrane switch process includes: screen printing, die - cutting, assembly and other processes. Two are very high requirements for the production environment, relatively speaking, the use of dustproof grade higher workshop production of product quality is more guaranteed.
⑤ From the product size and appearance of the light touch switch and film switch difference comparison:
The light touch switch is small in size and belongs to standard parts. The size and related parameters should be combined with industry standards, and the color is relatively single. Membrane switch can be customized according to customer requirements, different sizes, appearance and color, etc., more convenient and flexible to use.
From the technical point of view and quality of light touch switch and film switch difference comparison:
The touch switch requires a higher degree of precision. The coordination of various parts and components directly affects the function and feel of the product, and has high requirements for product performance. Film switch in addition to the above requirements, the appearance of the product, color, is also very picky.
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