Nanjing LED Backlight Supplier_LED Backlight Manufacturer_LED Backlight Prices. Introduction to the Device: LCDs are non-emissive display devices that require a backlight to achieve display functionality. The quality of the backlight not only directly affects the image quality of the LCD but also accounts for 3-5% of the cost of the LCD module, while consuming 75% of the module's power. It can be said that it is a very important component in the LCD module. High-definition, large-sized LCDs require high-performance backlight technology to match, so as the LCD industry strives to explore new application areas, the high-performance evolution of backlight technology (such as high brightness, low cost, low power consumption, and slimming down) also plays a crucial role behind the scenes.