Organic Light-Emitting Diodes (OLEDs) are advanced display and lighting technologies that use organic compounds to emit light in response to an electric current, enabling thinner, more flexible, and power-efficient screens compared to traditional LEDs and LCDs. The self-lighting characteristics of OLEDs provide better contrast, deeper blacks, and a wider viewing angle, making them ideal for high-quality display applications in smartphones, televisions, and wearable devices.