The difference between LED display and liquid crystal display

In fact, the LED display and LCD is the same, the main difference is that the screen produces bright light backlight light source is different.

Ordinary LCD display using CCFL light source, that is, cold cathode fluorescent tubes, one on each side of the screen, the back of the display has a backlight plate, is composed of fluorescent material, which allows the two sides of the light source is evenly distributed throughout the entire back of the screen, so that the entire screen is uniformly bright. Due to technical constraints, the brightness of such a display is not completely uniform, it is just hard to find, while the lamp has a certain life expectancy, it will yellow over time.

LED liquid crystal display uses LED light source
LED LCD display uses LED light source, that is, light-emitting diodes (look like the red and blue indicator lights on household appliances). Such a light-emitting diode is very energy-saving, and because it is not a lamp so you can form an array evenly distributed behind the LCD screen. Brightness is good, so that the backlight is more uniform. Such a display can be made thinner and more energy efficient, the life of the LED is also longer than the life of the CCFL, color stability is not prone to yellowing.