Recently, many have been worried about the question of what is an LED TV? These units have proven themselves well and have managed to gain widest popularity. The cost of this type of TV is gradually reduced, so that they become much more affordable. Not everyone understands what an LED TV is, so it’s worth understanding the principle of its operation, discussing the pros and cons associated with production technology.
In fact, this device is a liquid crystal television in which the screen is illuminated by LEDs. Earlier models of LCD TVs use cold cathode tubes. It is worth mentioning the advantages of using an LED matrix in backlight. Manufacturers are talking about a significant increase in image quality. There are a number of parameters that directly affect how viewers perceive the image. It is customary to include brightness, contrast level, black depth and color rendering quality. In most cases, LED-based TVs are far ahead of their counterparts.
If we talk about what an LED TV is, then it is worth saying that the mentioned feature is associated with the design features of the
LED matrix. When adjusting the level of glow of the diodes, it is quite possible to achieve absolute control over the clarification or darkening of certain parts of the screen. In the off state, the LED does not create any glow, so a group of off diodes creates completely black areas. Thanks to this technology, it is possible to achieve a deep display of black, as well as an excellent level of contrast. The overall color rendering also becomes much better, which positively affects the image quality. Thanks to the glow of LEDs, LCD LED TVs have a high screen brightness. Using a diode array allows you to make most of the parameters that are responsible for the output of high-quality images, much better. A significant reduction in energy consumption is another important plus.
Speaking about what an LED TV is, it is necessary to mention that harmful aerosols and mercury are not used in the production, and this has a beneficial effect on
environmental safety. In
LED backlighting , both single-color and tri-color diodes can be used, which can significantly increase the number of displayed colors. Basically, it is customary to use a backlight with white LEDs, which reduces the risk of problems with the image.
The best LED TVs are manufactured using local dimming technology, which is 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 poor uniformity in the output image. Usually this is the appearance of bright spots in areas with brightly turned on backlight and dark spots where the backlight is turned off completely.