An LED display driver is a device that manages the power used to drive one or more LEDs in a display. It helps to ensure that the LEDs perform correctly in the desired environment and that the display complies with safety and efficiency standards. It also helps to reduce power consumption and extend the life of the LEDs by providing a regulated and stable voltage and current. The LED display driver determines the characteristics of the LED display such as color, brightness and size. It works by converting the incoming electrical signal into a voltage and/or current waveform suitable for the LED display. LED display drivers can be used in a variety of applications including LCD displays, LED signs, LED TVs and LED lights.