LCD TV models are still very popular today. It is substantiated, according to experts, due to the following advantages: high image quality, small size, ease of use, reasonable and affordable prices.
What is an LED TV?
So, LED TV is a technical device. It is a LCD TV receiver. In this case, the matrix is equipped, first of all, with a special backlight from a set of LEDs.
What does the abbreviation mean?
Explanation of the abbreviation LED - "Light Emitting Diode". This concept applies to TV in the following: it is LCD TVs with LED-backlight, which are technical devices on liquid crystals. And here it is important that the screen in this device is illuminated directly with the help of LEDs.
The principle by which the LED TV is arranged
There are predecessors of LCD TV models. They use lamps based on cold cathodes. It should be noted that there are a number of undeniably excellent features in the use of an LED matrix in the backlight. Manufacturers claim a significant improvement in the quality of the image itself. At the moment, there is a certain number of characteristics that have a certain impact in the current situation on how the audience of TV viewers perceives this image. Of these, the most common are the following characteristics:
-saturation and brightness, -degree of contrast, - the depth of the black color segment, -inherent quality of color rendition.
At the moment, LED-backlit TVs are significantly leading in comparison with their own predecessor brothers.
Many are interested in what exactly an LED TV is. The answer to this question is directly related to the useful distinguishing features of the LED matrix. The thing is that when attempting to control the degree of diode luminescence, it becomes absolutely possible to achieve significant control over the lighting or, on the contrary, the darkening of specific areas of the screen. During the period of being in the off state, the light diode does not in any way form practically any glow. For this reason, a certain category of switched off LED diodes forms absolutely black area zones. As a result of the application of this technological process, in practice, it turns out to achieve an in-depth reflection of black color, as well as an extremely good and unsurpassed degree of contrast. The overall color rendition is also subject to noticeable and significant improvements, which together have a positive effect on the quality of the resulting image. Thanks to the glow of the LEDs, LED LCD TVs have a significant degree of screen brightness. The use of a diode matrix makes it possible to achieve at the stage of use most of the characteristics that are responsible for the transmission of a high-quality image. It is the best in comparison with the previous one. A significant reduction in electricity consumption is considered another significant advantageous bonus.
Touching upon the question of what an LED TV is, one should not forget about an important advantage that is available in the manufacturing section of this device. Namely, in the process of manufacturing and production of these LED LCD TVs, any harmful aerosol application and mercury are categorically excluded from the use. Thus, this decision has a significant positive effect on the preservation of environmental and personal safety.
In LED backlighting, both single-color and two- or three-color diodes can be used. This design provides a unique opportunity to significantly increase the quantitative indicator of displayed colors. First of all, it is customary to use backlighting with white light diodes, thereby reducing the threat of any difficulties with the image.
The best LED TVs go through a production process that uses local dimming technology. She is responsible, as a consequence, for local dimming. According to the above “local dimming” technological process, the control of the LEDs is carried out in groups, which contain several unit elements.
The above technology has a significant flaw. It lies in the possible difficulty that can be manifested in the appearance of poor-quality uniformity. It appears, as a rule, in the transmitted and displayed images. In practice, it has been proven that this appearance of bright spots occurs in local areas with brightly turned on backlighting and black spots in those locations where the backlighting is turned off completely.
Decent Alternative to LED TVs
But LCD LED TVs also have alternatives, namely OLED TVs. They also have an undeniable number of pleasant advantages, but they differ in one significant drawback for most buyers - a high price. In the catalogs of electronics stores, technical devices of various models and price categories are usually presented (among them, as a rule, there are premium technical devices from Loewe, and 4K (UHD) TVs with LED backlighting).
What parameters should you pay attention to when buying LCD LED TVs?
When choosing an LCD LED TV, you must make your final decision by directly comparing the following specifications:
-Full HD or HD Ready resolution;
-support 3D;
-compatible with HDR technology;
-screen diagonal;
-the ability to connect to the Internet (including via Wi-Fi).
Before buying, it should also be borne in mind that behind the successful creation of an extensive multimedia system is an LED TV that has several HDMI ports. They are required for the elementary connection of DVD players, set-top boxes, game consoles and other signal sources.
LCD LED TVs in the price lists of stores of various electronics are usually represented by a wide range of devices, where the price policy is characterized by a segment from 2095 to 79,990 rubles.
On popular electronics Internet sites, you can familiarize yourself with detailed technical specifications, instructions for using the device, available purchase conditions, availability of a guarantee, possible delivery or self-pickup in your city.
Worthy of your attention models of LED LCD TVs
LG 24LH451U
A compact model that has the usual HD-Ready resolution (1366 x 768) and a small kitchen TV. The device is equipped with the following advantageous features:
- powerful graphics processor;
- automatic noise suppression and voice amplification system;
- analog and digital tuners;
- a simple system for fine-tuning the black depth, color gamut and other parameters.
Samsung UE40K5100AU
A modern Full HD TV that, thanks to its elegant hi-tech design and lack of ventilation holes, will take its rightful place in any room. The device supports the function of expanding the color gamut, noise reduction technology, resistance to voltage surges, file viruses, dust, moisture and insects. An invariable advantage is the antenna input for terrestrial, cable or satellite television.
LG 43UH755V
Another "smart" device that runs on webOS 3.0. Among the advantages, you can instantly highlight the detailed resolution, which reaches 4K values. You can't go unnoticed on this TV with Dynamic Range Expansion for a rich palette and deep brilliance. For a deeper immersion in what is happening on the screen, the LG 43UH755V has built-in ULTRA Sound technology.
