Features and benefits of LED TVs

Choosing the right TV model, many consumers are faced with new terms and modern technologies. For example, not everyone knows what a TV with LED technology is, and on what principle its work is based. Despite this, today this type of flat devices is the most popular among buyers, so they are considered quite familiar attribute in the house. Before you do final choiceit is worthwhile to figure out what the abbreviation LED means, how such TV sets differ, and what advantages they have over other types of TV.

Definition and features

If to translate literally, then LED - light emitting diode. However, it is advisable to assume that it cannot serve as a complete definition.In fact, a modern LED TV is representative of the well-known LCD panels. The main component is an LCD matrix with a set of luminous points - pixels. But if fluorescent lamps were used as a backlight in conventional LCD devices, then LEDs were used in the devices in question, that is, TVs with this kind of backlight are more advanced options. LCD-models.

The first to apply this technology was the developers of Samsung. As a marketing move, the new TVs were given the name LED TV; it is used today.

LEDs here serve as sources of illumination, and are not the real unit of the emerging image. Therefore, such panels would be more correct to call LCD TV with a modern LED-backlit.

Types of LED backlight

In order to understand what is the principal feature of such equipment, it is necessary to understand the types of lighting of the TV. To date, used several systems, they differ in color and method of location.

According to the color of the light sources

1. White led or monochrome system (white LEDs).It is considered a budget solution, but still wins against fluorescent lamps. LEDs are energy efficient and do not contain mercury. As for the color and depth of coverage, LED TV with this type of backlighting is not much different from the LCD, the difference in the next option is significant.
2. RGB or multi-colored system. Their color palette is much wider. At the expense of it the color rendition improves. But It is worth noting that models with a similar lighting option turn out to be more expensive, which is not commensurate with the effect achieved. Such models need a powerful graphics processor, and they consume more electricity. Since such HDTVs are affordable for not every consumer group, advanced companies decide to abandon the RGB backlight and continue searching for analogue technology.
3. QD Vision or mixed backlight. Based on pure blue LEDs and a special quantum dot film that is green and red. This technology allows you to emit a strictly limited and tuned spectrum of optical waves. Due to this, the color palette and the intensity of colors are expanded, at the same time, the technology, unlike RGB LEDs, is more energy efficient.A striking example of a mixed backlight version is Bravia's television panel lineup, a leading manufacturer of Triluminos Sony.

In fact, the question of using the first and second variants of the backlight continues to find a lot of controversial opinions. For example, the famous developer of digital technology company Toshiba argues that the white backlight TV is much more efficient than RGB. So why spend a lot of money if you can save millions?

According to the layout of the backlight

There are 2 options.

1. Along the perimeter of the LCD matrix (Edge LED). This is a monochromatic system (White led), which can be located on one side (most often from below), on parallel sides (on the sides) or along the entire perimeter. The way of organizing the side illumination depends on the size of the screen diagonal. As disadvantages of such an illumination, “glare” at the edges of the television screen and an insufficient level of contrast can be noted (as compared with the second type). But this technology allows you to create panels with a thickness of just a few millimeters.
2. Directly behind the LCD matrix (Direct LED). Based on a uniform distribution of diodes over the entire area. According to the price criterion is more expensive than the backlight.The main advantage of such a system is the possibility of using the technology of local blackout of black. Both white and color LEDs can be used here, they significantly improve image quality.

If you are already the owner of such a TV, and you have problems with the image, you may be useful information about repair led lights with their own hands.

Advantages of LED TVs

These panels have significant advantages, and therefore are popular among consumers. Of the main advantages should be noted the following factors.

1. Shell thickness. It is through the use of LEDs that the production of ultra-thin models has become possible. Such a TV can be easily mounted on the wall with a bracket;
2. Contrast and image clarity. LED TV is the main competitor of other types of TVs, because it has excellent image quality, adjusting the level of contrast. Recalling disadvantages of LCD panelswhen problems with the perception of moving objects were observed, it can be noted that with modern ice screens such problems will not arise.
3. Energy efficiency. Saving electricity is perhaps the main point that attracts many buyers. Compared to its predecessors, the LED device consumes 40% less resources.
4. Wide range of models not only in terms of functionality, but also in appearance. Such a panel without any problems decorate absolutely any interior. Leading manufacturers have a huge number of models, implying both classic solutions and interesting shapes and colors.
5. Durability. Due to the use of fade-resistant LEDs, televisions have a longer service life.

But the improvement of such TV panels does not end there. Already today on the shelves of stores appear OLED Tv, the backlight of which is based on organic LEDs. They have an even thinner body, low weight (relative to its diagonal), a wide viewing angle, the absence of "light" and glare, excellent color reproduction. However, this does not mean that other models, lower class, will lose demand. Innovative technologies of this format are not cheap, and the financial capabilities of most consumers will not allow such a widescreen panel at home.Therefore, the demand for simple models of modern LED TVs is unlikely to fall in the near future. Detailed comparative characteristics of both types are given in the article. about the differences between LED and OLED TVs.

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