LED (light emitting diode) are semiconductor elements that light up when current flows. LEDs have a huge field of application and are easy to use. LED technology is the most widely used electronic display due to its high energy efficiency (luminous efficacy), colour diversity and excellent service life. We develop application-specific light guides and front foils for customer-specific LED displays. Customer-specific LED displays can be developed quickly and cost-effectively and are mainly used in household appliances.