Organic light-emitting diodes (OLEDs) are a type of display technology that uses organic compounds to produce light when an electric current is applied. Unlike traditional LEDs, which use inorganic materials, OLEDs can create vibrant colors and deep blacks, making them popular for screens in smartphones, televisions, and other devices. The structure of an OLED consists of thin layers of organic materials sandwiched between two electrodes. When electricity flows through these layers, the organic compounds emit light, allowing for thinner and more flexible displays. This technology also offers energy efficiency and faster response times compared to conventional displays.