LED backlight LCD TV fortunately?
Straight down: emphasis on quality, excellent performanceEnterprises using vertical LED technology believe that the advantages of straight down LED technology in picture control are better than side entry LED technology, and the price of side entry LED TV is high. Compared to the two ways, "straight down" is more perfect for the quality of images." To 55 inches of LED TV, for example, straight down products will be more than 3000 LED lights evenly distributed behind the panel, so that the backlight can be evenly transmitted to the entire screen, the details of the screen more delicate and realistic. The side entry type is to install more than 400 LED lights at the bezel of the panel so that the light source shines out of the side. This can minimize thickness, but because it reduces the number of LED lights by nearly 7 times, it is easy to reduce the brightness of the picture in the form of "X" (that is, it should be brighter around the center).
The vertical RGB-LED light source technology is absolutely the first in the comprehensive display superiority, but the price cost is also the highest, and it is not possible to popularize the market. At present, the LED TV sold on the market generally adopts the direct white LED light source and the side inlet white LED light source products. Samsung and SONY adopt the side in white LED technology, while SHARP and Hisense adopt the direct down white light LED technology.
At present, there are three main applications of LED backlight technology in LCD TV field: direct down type tricolor RGB-LED light source, vertical white LED light source and side entering white LED light source.
Straight down LED TV also divides the LED backlight into several cells and, when shown black, simply turns off the light of the corresponding LED region, showing a perfect black color. As a result, companies using vertical LED technology believe that direct LED backlight can render images more accurately and display excellent color and brightness contrast effects.
