A backlight membrane switch is a type of membrane switch that combines the key functions of a conventional membrane switch with the need for backlighting. SMT LED lights are installed into the membrane switch to provide backlighting. The backlit membrane switch offers a good visual effect, saves space, is durable, easy to clean, and has other advantages. It enhances the operation of the product, improves the user experience, and is widely used in various electronic products. It has become a popular design choice in the modern user community.
Typically, back lighting in film design are constructed from a multi-layer plastic material (such as polyester or Polycarbonate) that can be silk-screened with the necessary colors, graphics, and text. When illumination is needed, surface-mount technology (SMT) LEDs built into the membrane switch light up the graphics and text, giving the user the visual effect of recognizing the pattern or key. Backlight membrane switch are designed to be more complex than a standard membrane switches to fully integrate the SMT LEDs into the membrane switch.
The backlighting source for the backlit membrane switch is typically LEDs, which are assembled on top of the membrane switch wiring and do not require additional lighting tools. When the membrane switch is illuminated, the LEDs on top of the wiring are not visible, only the custom acrylic light panels patterns can be seen. In comparison to the indicator LEDs, the LEDs used for backlight membrane switch illuminate a larger area and provide stronger illumination.
In addition to using LED backlighting source design, we can also choose Electroluminescent Panel (EL) as the backlight for membrane switches. EL panel backlight is positive lighting and does not require additional light-blocking treatment to achieve good results. The LED back lighting in film design requires more space as LED light is a point light source. The LED light used and the illuminated pattern need to have some light diffusion distance, so the LED light cannot be placed directly next to the backlight pattern. Therefore, for product designs with limited space that require a large illuminated area on the membrane switch, Electroluminescent Panel (EL) backlight is a better choice.
The another type backlight membrane switch built without light source, we can also provide membrane switches with Light Guide Film (LGF) inside design. The product does not have its own backlight source, but users can connect their own light source to our LGF membrane switches. This allows for a good backlighting visual effect through our LGF light guide. Currently, the best light guide we use is the fiber optic light guide. We assemble the fiber optic light guide film into the membrane switch, and users provide the light source for the fiber optic through an external LED to achieve an excellent backlight membrane switch.
Backlit membrane switches are thin and lightweight, take up little space, can be easily embedded in a variety of equipment, and can integrate a variety of electronic functions and support various operating modes. They not only provide a good visual effect, but also have high product reliability and durability, making them suitable for harsh environments. Installation is also very simple.
Back lighting in film design are commonly used in a range of electronic devices, including home appliances, automobiles, medical equipment, and industrial control devices. With years of experience in manufacturing backlit membrane switches, we have mastered the industry's most advanced technology to provide you with the best solutions and products.
We are able to provide free samples of backlit membrane switches for testing and are excited to serve you.
Post time: Sep-29-2024