LED display screens and LCD display screens are actually the same, and there is no difference even if they are both LCD screens. The main difference lies in the different backlight sources that produce bright light on the screen.
1. A regular LCD screen uses a CCFL light source, with one on each side of the screen and a backlight plate on the back of the display. The light sources on both sides can be evenly distributed on the entire back of the screen, making the entire screen uniformly bright. However, due to technological limitations, the brightness of such displays is not completely uniform, although it is difficult to detect, and the lamp has a certain lifespan, which will turn yellow over time.
2. LED liquid crystal displays use LED light sources, also known as light-emitting diodes. This type of LED is very energy-efficient, and because it is not a lamp, it can form an array and be evenly distributed behind the LCD screen. Good brightness makes the backlight more uniform, so the monitor can be made thinner and more energy-efficient, with a longer lifespan than CCFL, stable color and less prone to yellowing.