What are the three common problems in membrane switch design?

2020-07-27

　What are the three common problems in membrane switch design? 
There are three common problems in the design of membrane switch
1. The drum position of the key needs to be opened to a suitable position, otherwise it will affect the beauty of the button. Back glue is not sticky, in addition to the selection of raw materials, but also to confirm the shape of the prototype. If the prototype has grooves, it is necessary to select a good quality adhesive. The choice of gum is suitable. 
2. Color problem: the modulation ratio of ink is the main reason for serious color deviation, and the color requirements are too strict. Color range is too small, these are factors, no matter is any industry is more difficult to control the problem. From the control cost of the enterprise, to achieve a very small range of colors, the cost is very high, the cost of the product rises, the unit price of the product will also rise correspondingly, which is difficult for the customer to accept, so. The range of color should be in a reasonable range。
3. The shrapnel of the membrane switch bulge button should be placed properly, and there should be no offset, otherwise the operation of the key will be affected until it fails.    
The membrane switch is made of polyester film. It has good insulation and heat resistance, high mechanical strength, transparency and air tightness, especially bending resistance and high elasticity. Membrane switch, also known as the light touch keyboard, adopts the overall sealing structure composed of plane and multi-layer. It is a new type of electronic component that integrates light, mechanism and electricity by sealing the key switch, panel, mark, symbol display and lining plate together. It is the fundamental change of the appearance structure of electronic products. It can replace the buttons of conventional discrete components and perform the operation system more reliably The task of unification. 

The membrane switch has good waterproof, dustproof, oil proof, harmful gas erosion proof, stable and reliable performance, light weight, small volume, long service life, convenient assembly and connection, and washable panel.