What is an LED TV: we understand

Recently, many are concerned about the question,What is an LED TV? These units are well proven and managed to find the widest popularity. The cost of this type of TV gradually decreases, making them much more affordable. Not everyone understands what an LED TV is, so you should understand the principle of its operation, discuss the pros and cons associated with production technology.

In fact, this device is aTV on liquid crystals, in which the screen is illuminated by means of LEDs. In earlier models of LCD TVs, lamps based on cold cathodes are used. It is worth mentioning the advantages of using the LED matrix in the backlight. Manufacturers say a significant increase in image quality. There are a number of parameters that directly affect how viewers perceive an image. They include brightness, contrast level, black depth and color rendering quality. In most cases, LED-based TVs are significantly ahead of their counterparts.

If we talk about what an LED TV is, thenIt should be said that this feature is related to the design features of the LED matrix. When adjusting the level of the glow of the diodes, it is quite realistic to achieve absolute control over the clarification or darkening of certain sections of the screen. In the off state, the LED does not create any glow, so a group of switched off diodes creates completely black areas. Thanks to the use of this technology, it is possible to achieve a deep black display, as well as an excellent contrast level. The general color rendition also becomes much better, which positively affects the image quality. Thanks to the LED lights, LCD TVs have a high screen brightness. Using a diode array allows you to make the most of the parameters that are responsible for the output of a quality image, much better. A significant reduction in energy consumption is another important plus.

When talking about what an LED TV is, you needmention that harmful aerosols and mercury are not used in production, and this has a beneficial effect on environmental safety. In the LED backlight can be used as single-color, and three-color diodes, which can significantly increase the number of displayed colors. It is generally accepted to use a backlight with white LEDs, which reduces the risk of problems with the image.

The best LED TVs are produced usingtechnology "local dimming", responsible for local dimming. According to her, the LEDs are controlled by groups consisting of several separate elements. The disadvantage of this technology is the possibility of the appearance in the output image of poor uniformity. Usually this is the appearance of bright spots in areas with brightly lit backlight and dark spots where the backlight is completely off.