language

العربية

বাংলাদেশ

Български

Hrvatski

Home page

The overall performance of thin film switches can be summarized as follows

Release time:

2023-06-06 08:59

Thin film switch is a type of contact switch made by printing contact circuits with conductive paste on flexible polycarbonate or polyester film. The thin film switch is a flat type, multi-layer combination, and sealed structure. It is an electronic control system assembly that integrates button switches, panel function markings, transparent reading display windows, indicator light window holes, and circuits.
1. Good sealing performance
Due to the overall sealing structure of the membrane switch, the contacts of the switch are not corroded by harmful gases and are not easily oxidized; It has the characteristics of waterproof and dustproof, making it more suitable for use in various harsh environments.
2. Rich colors and beautiful appearance
Thin film switches can reflect personalization in the design of color patterns based on the user's design concept, and the comprehensive characteristics of material beauty, decoration beauty, and craftsmanship beauty in the decorative effect.
3. Small size, light weight, and reliable structure
The thin film switch can be arranged and combined into a thin film keyboard in design, with high setting density. It is a sealed thin film structure composed of multiple layers of thin films, and all the connecting and outgoing lines between the switches are completed in one go by screen printing, with a total thickness of 1-3mm. Therefore, the volume is reduced, the quality is reduced, and reliability is improved.
4. Reduce the supporting costs of mechanical and electrical products
Traditional mechanical switches require welding during installation and must be matched with fixed brackets; The installation of the membrane switch is adhesive type, and as long as the adhesive paper is removed, it can be firmly adhered to the surface of the entire machine. The lead outlet is inserted into the socket of the rear circuit of the entire machine, and the circuit can be connected instantly.
5. Durability
The lifespan of thin film switches can generally reach over one million times, and the reason for this long lifespan is because the switch's action is only achieved by the vertical movement of the elastic thin film; Although the elastic film undergoes millions of peristalsis, the creep amplitude is very small, only 0.1-0.3mm (i.e. switch stroke), and the rationality of material selection far falls short of reaching the yield limit of the film. Therefore, the film material can withstand a lifespan of more than one million times without deformation; On the other hand, the contacts of the switch are in vertical contact, resulting in minimal wear and tear; The contacts printed on the screen can form sufficient thickness, and a layer of conductive carbon is added to the silver paste contacts to achieve high wear resistance and self-lubrication. Therefore, the lifespan of the thin film switch is tens of times longer than that of the mechanical contact switch.