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https://www.niceone-tech.com/the-beginners-guide-to-fiber-optic-backlighting.html

Since membrane switches are gradually permeating all aspects of our lives, you must have also touch keypad membrane switch products in the form of the electronics backlighting. One possibility is an optical fiber. Optical fiber is one of the most popular backlight solutions. Widely used in membrane switches. However, since Niceone-tech purchases optical fibers like Taiwanese factories, the cost is relatively high compared to LGF and EL. The light source provided by the fiber optic backlight is very stable, requires a lower voltage, and has a longer life. So what is the composition and working principle of optical fiber?

What is fiber:
Simply put, an optical fiber is a kind of glass fiber with a small thickness. A large number of glass fibers need to be bound together to form an optical fiber film. Even so, how to distribute the optical fiber evenly and make the light spread evenly on the optical fiber requires multiple adjustments. Niceone-tech found that the optical fiber is used as a fixed layer, which can also play a role in fixing the Dome of metal dome switch.

At this time, the customer may ask, can the optical fiber emit light independently?

Niceone-tech regrets to tell customers that optical fiber cannot emit light on its own, but it can evenly distribute a large amount of light in the place where the membrane switch needs to be lit by the light generated by the LEDs. It can be said that optical fiber is a carrier of the LED light sources.

Since the cost of optical fiber backlight is so much higher than that of the EL sheet, the advantages of optical fiber are obvious:

As LED is a kind of energy-saving material, the required power is 20-50ma and life is longer. Therefore, the life of the optical fiber keypad membrane switch can reach about 30,000 hours. Compared with 3000 hours of EL sheet, the life span is more than 10 times.

The brightness is uniform.

Niceone-tech has developed the LGF membrane switch in the past few years. If the LGF structure can be used in the engineering evaluation, we highly recommend LGF because the price is lower than that of the optical fiber and the effect is the same. Only the mold cost Higher. If necessary, we can mail samples for your reference. Niceone-tec