Why use LED backlight as the backlight source of LCD TV?

The main purpose of using LED as the backlight source of LCD TVs is to improve the picture quality, especially in terms of color saturation. The LED backlight technology display screen can achieve a wide enough color gamut to make up for the lack of color display of the LCD device. It can meet or exceed the requirements of Adobe RGB and NTSC color standards, and can reach NTSC ratio of more than 100%. Among them, Sony has introduced LCD TV panels with LED backlights, with special emphasis on bright red and dark green performance, which can display more lifelike than previous methods s color. At the same time, because of the flat light source characteristics of the LED, the LED backlight can also realize the sub-regional color and chromaticity adjustment function that CCFL cannot match, so as to achieve more accurate color reproduction to meet the needs of graphic publishing and graphic design work. The dynamic adjustment of can make the brightness and contrast can be dynamically corrected when different pictures are displayed to achieve better picture quality.

Due to the extremely low light transmittance of liquid crystals, the brightness of the LCD TV must be made to achieve a perfect display screen. The brightness of the backlight is very high, so the life of the backlight is the life of the LCD TV. Generally, the life of the backlight of the LCD TV is basically more than 50,000 hours. In other words, if you use an LCD TV for an average of 5 hours a day, the life span of 50,000 hours is equivalent to 27 years of using the LCD TV.