I heard LED TV straight down and side into, what is the difference?
Compared to the direct down backlight technology, the backlight technology has higher requirements for the overall system design and integration capabilities of the enterprise. In addition, from the cost point of view, the side entering type white LED technology to consider (the host power supply, power supply circuit, screen and heat dissipation) need to thin, often resulting in many aspects of the cost increase, so the cost is higher than the direct type white LED products." Samsung TV technicians have made such an explanation for the high prices.Become more slim volume of edge LED TV's biggest bright spot. This reporter has learned that the current market side of the top LED TV product thickness of only 2.99cm, while the straight down LED thinnest product thickness of 5.5cm.
Enterprises 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).In addition, the direct LED TV also divides the LED backlight into several cells and, when displaying black, directly turns off the light corresponding to the LED area, it can display very perfect black. 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.
The direct down RGB-LED light source technology is absolutely the first in the comprehensive display superiority, but the price cost is also the highest, and has not the possibility of the market popularization. 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."
According to the National Radio and television products quality supervision and inspection center experts, the current application of LED light source technology in the field of LCD TV has three main types: direct type RGB RGB-LED light source, white LED light source and straight side type type white LED light source.
