LGF (light guide film) membrane switches provide bright and uniform backlighting with a typical thickness of 1 mm or more. Users can design customized lighting areas for texts or keys and select specific LED lighting colors (white, red, green, yellow, and blue). Compared to EL backlights, LGF (light guide film) eliminates the need for an EL driver IC, simplifying the circuitry and enhancing the reliability of LGF membrane switches. Additionally, LED lighting offers a significantly longer lifespan than EL light.