Characteristics of thin film in the production of flexible film switch panels

Thin film is important for both flexible film switches and film panels. Each material is carefully selected during production to produce high-quality flexible film switches and film panels. When selecting materials, special attention is paid to thin films, as can be seen from their names. So, what are the characteristics or advantages of the film when making flexible film switches and film panels?

Characteristics of thin film in the production of flexible film switch panels

1. Good weather resistance: The panel layer is the surface layer of the flexible film switch exposed to the natural environment, and its panel material should be able to withstand certain natural environmental conditions without deformation, cracking, aging, or discoloration.

2. Good dimensional stability: Flexible film switches require the production of a thin film for the panel, with no significant changes in size within a certain temperature range (generally -40 ℃~55 ℃).

3. Elasticity requirements: The panel layer should be thin and have a certain degree of resilience. At the same time, the elastic deformation of the flexible film switch should be small, which can be judged by the elongation of the material. Generally speaking, if the elongation is large, the amount of elastic deformation is also large, and the elasticity performance is poor.

4. Good appearance: Refers to the smooth and consistent gloss surface of the film used to make the panel, without mechanical damage, scratches, inclusions, and surface defects such as color spots.

5. Good chemical resistance: The panel layer may come into contact with different chemicals, but for most common chemicals such as alcohols, ethers, and mineral oils, it should have a certain tolerance.

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The above is the introduction to the characteristics that the film should have when making flexible film switches and film panels. Only with these characteristics can we produce high-quality flexible film switches. If you need flexible film switches and film panels, please contact us.

Flexible membrane switch is an operating system that integrates button functions, indicator components, and instrument panels. It consists of four parts: panel, upper circuit, isolation layer, and lower circuit. Pressing the flexible film switch causes the contacts of the upper circuit to deform downward and become conductive with the plates of the lower circuit. When the finger is released, the contacts of the upper circuit bounce back, disconnecting the circuit and triggering a signal. The flexible membrane switch has a rigorous structure, beautiful appearance, and good sealing performance. It has the characteristics of moisture resistance and long service life. Widely used in electronic communication, electronic measurement instruments, industrial control, medical equipment, automotive industry, smart toys, household appliances and other fields.

The thin film of the circuit layer in flexible membrane switches should be selected between 0.125 mm and 0.15 mm in thickness, considering the separation and rebound of switch electric shock, as well as the reliability of lead to connector insertion or riveting. If it is too thin, there will be no rebound force, and the separation of contacts will not be agile. If it is too thick, the action will be sluggish, increasing the operating force. From a specific perspective, the choice of film thickness is also related to the following factors:

1. The thickness of the isolation layer.

2. The shape of the key body.

3. The size of the key body.

Therefore, the material selection for the flexible film switch circuit layer is 0.125mm thickness, which is suitable.