Each person, choosing a TV for himself, learns about the latest achievements of science, gets acquainted with new technologies and terms. One of modern technologies in the field of television is LED. In reality, an LED TV is an ordinary liquid crystal LCD TV... This means that the image in it is formed using a matrix consisting of pixels.
Technology features
If in old devices the backlight was a fluorescent lamp, then in LED models the backlight is a matrix consisting of a set of LEDs (Light Emitting Diode).
Light Emitting Diode is translated as "light emitting diode". The scope of their application is extensive: these are car headlights, traffic lights, lamps, spotlights, street and home lights. In a TV, light from LEDs is directed onto an LCD screen, illuminating the image.
Of course, it would be more logical to call these models LCD-TVs with LED-backlighting. However, Samsung, a pioneer in this area, has named these models "LED TV". The term became popular and began to denote a class of new televisions. The LEDs in these TV receivers do not form the picture as a real unit (pixel). Therefore, LED TVs cannot be considered full-fledged LED models.
How does LED backlighting work
To understand the principles of operation and features of this device, you need to get acquainted with the types of backlighting on the TV. Several lighting systems have been developed at present. They differ from each other in the way of arrangement and color.
Glow source color
Single color system (White led) more energy efficient than fluorescent lamps, but still considered a budget option. LEDs do not contain mercury like lamps, but in terms of color rendering and depth of coverage, LED TVs with this backlight practically do not differ from LCD.
Multi-color system (RGB) compares favorably with the previous version. TVs with this backlight have a wide color gamut. Accordingly, very good color rendering. Unfortunately, this effect comes at a higher cost. Such models require a modern powerful graphics processor to work. These TVs consume more electricity and have a more bulky, comparatively, case. The cost of these TVs limits demand, which is why leading companies are gradually phasing out RGB lighting and are looking towards analog home appliances.
Mixed illumination option (QD VIsion) uses LEDs only of blue color and special films. Film is a collection of red and green quantum dots. This allows you to have a tuned spectrum of optical waves, limited in range. This expands the color gamut and improves brightness and intensity. Unlike an RGB system, this technology is more energy efficient.
The answer to the question of which lighting option to use is ambiguous. Until now, there are various controversial opinions, discussions on this score. Toshiba believes that white backlighting is superior to RGB in all its characteristics.
Accommodation options
There are two options for placing the backlight:
General advantages of LED TVs
These devices are an undoubted step forward in the development of television. They are deservedly popular in everyday life. There are several main advantages:
Manufacturing companies are constantly working to improve these panels. The new technology is called OLED TV. In these TVs, the backlighting is organized on organic LEDs. They are characterized by an even thinner body and improved color rendering.
Speaking about LED technologies, do not forget that in the manufacture of LED TVs, harmful substances are not used, as before, - mercury and aerosols.
Some LED-TV models use local dimming technology. It is designed for local dimming. The basic idea is to control groups of LEDs. Each group contains several elements. True, with a similar approach, bright spots sometimes appear in certain areas of the screen in those areas where the backlight is turned on for full power... And where the backlight is not used, dark spots may appear.
Screen resolution... Determined by the number of pixels that form the image in width and height. The larger this parameter, the clearer the image and the more different details can be seen on the screen.
LED-TV mainly have full resolution H. D. (1980 x 1920 pixels) and H. D. Ready (1366 x 768 pixels). These are the most popular video formats in this moment... Some premium models have 4K UHD (3840 x 2160 pixels) resolution.
Almost all 4K UHD TVs support HDR. This is the extended format dynamic range, which allows you to portray the picture as close as possible to reality.
Screen coverage... Distinguish between matte and glossy. When matte finish the image is softer. The viewing angle is limited. On hit sunlight no glare. If the coating is glossy, then the picture on the screen is very bright and contrasting. Visibility becomes worse in bright sunlight.
Functional connectors... The standard ones are usually present: HDMI output, Ethernet-out and USB connector for watching video from a flash drive or hard drive. The latest models have a D-sub video port. It involves connecting a computer to a TV.
Sweep frequency... A measure of how many frames of a movie are shown per second. It is measured in Hertz and can reach values \u200b\u200bup to 960 Hz. For 3D TVs, the frequency can be even higher. The recommended range of values, so that the image does not blur and the images do not overlap one another, is 100-200 Hz.
Additional features
DVB-T... Standard digital television... Allows, in addition to analog cable and terrestrial television, connect satellite.
3D 3D image... With this option, you can view 3D images in active or passive 3D. You need to take care of special glasses.
Smart TV... Allows you to connect and use the Internet. The connection takes place via the WiFi module. Connection via network cable... Some TVs allow you to build in a router additionally. With Smart T. V. you can play videos from the Internet, play, listen to music, search for information.
LED devices have become popular. After all, LED TV - what does it mean? It is of high quality, convenience and comfort to use. The advantage of an LCD TV is LED backlighting, which all LED models have. But for the design features, additional features sometimes you have to pay extra. What should you pay attention to when choosing an LED TV model?
First of all, you need to decide which is the best diagonal to choose. Stores presented huge selection different models 19 to 58 inches. Sometimes counting in inches is not very familiar and you have to choose the size in centimeters, that is, from 48 to 147 cm. Right choice diagonal depends on the size of the room where the TV will be installed.
There is an approximate table of the ratio of diagonal and distance to comfortable viewing.
These data are approximate and can be adjusted within half a meter..
- 14-17 inches - 1.5 to 2 m.
- 21-25 inches - 2 to 3 m.
- 26-32 inches - 3 to 4 m.
- 34-37 inches - 4 to 5 m.
- 42-55 inches - 5 to 7 m.
- 61-80 inches - 7 to 10 m.
So, when choosing a TV, you need to think about its location in the room in advance and choose the optimal model based on the layout.
After choosing the diagonal of the TV, you need to consider the resolution. Here the more criterion, the better. Full H. D. will provide complete comfort and satisfaction from your TV.
The picture quality is judged subjectively. Whenever possible, colors should be natural, without overexposure and spots. The image during fast movement should not be jerky, but smooth. Black should be free of impurities, as black as possible. Check the transmission of halftones - whether the details are different. The color of the human body: hands, face should be pleasant, without yellow or red spots.
Manufacturers should be selected well-known. In addition to the guarantee, it is also a service, as well as the availability of various additional parts and accessories in stores and service centers.
And of course, you need to think about additional functions. Do you need an Internet connection or how important is connecting a laptop to a large screen.
What is the difference between LCD and LED TV
Gradually, LED technologies are replacing liquid crystal ones, since the former are more efficient and economical. This is a significant energy savings and best image on the screen. Although the differences between these LCD and LED approaches are only in the way the screen itself is backlit.
Everything is moving forward. Modern films are produced for the latest technology. Therefore, in order to fully immerse yourself in the atmosphere of a new film, it is better to watch it on LED-TV.
Today, devices with LED backlighting are the best solution in terms of image quality and equipment cost. Modern solutions in TVs of this type, they can compete with expensive plasma (PDP), confidently displacing the latter from the market.
True OLED TVs are very promising. In these panels, LEDs are truly the unit of the picture. But these models are still expensive and only pay for themselves on very large screen sizes.
Attention, only TODAY!
More and more often on the shelves you can find monitors with LED-backlighting. Sellers consultants will happily inform about the undeniable advantages of LED monitors over conventional LCD monitors. However, let's try to separate the wheat from the chaff and find out - is it so revolutionary " new technology».
The difference between LED monitors and monitors with LED backlight
Firstly, LED monitors and LED monitors are absolutely different devices... Due to the attempts of some manufacturers to separate their products into a separate class, confusion arose at the level of fundamental concepts. Therefore, let's immediately dot the "i".
LED monitors or LED panels have nothing to do with computer technology (by the way, TVs, too). You can see these devices, for example, on the streets of big cities, in stadiums, in shopping centers - information and advertising displays. They are called LED monitors precisely because their pixel is actually formed by an LED (one or more). These devices are characterized by relatively low resolution and high image brightness.
Considered by us computer monitors with LED-backlit have the same LCD matrix, in the cells of which liquid crystals change the degree of light transmission by rotating the polarization plane under the control of the signal voltage. However, the light source has changed. Conventional LCD monitors use Cold Cathode Fluorescent Lamp (CCFL) - fluorescent lamps with a cold cathode. At their core, they are familiar to us fluorescent lamps, perhaps miniature. For their ignition and further stable glow, an inverter is needed - a source of high voltage. However, modern super-bright LEDs make it possible to dispense with a high voltage source, while maintaining the same brightness. Therefore, as soon as their use became economically viable, they immediately replaced the CCFL backlight.
Also, do not confuse monitors with LED-backlit and OLED-screens. OLED screens are built on organic light-emitting diodes (Organic Light-Emitting Diode). Although this technology is considered very promising and is already being used in the production of screens for phones, digital cameras, etc., but the massive distribution of displays with large diagonals is hindered by the rather high cost of production.
Types of LED backlight
LED backlighting can be implemented in two radically different approaches, based on the color of the LEDs used.
The first is the cheapest and easiest to understand. CCF lamps are simply replaced with white LEDs (WLED) of the same shape and size. In this case, there is no need to talk about any improvement in color rendering compared to monitors based on CCFL. Color rendition will largely depend on the type LCD matrix - for TN it is obviously worse than for * VA- and IPS.
RGB LED
The second version of LED backlighting, although it is more complicated, is of higher quality and more promising, because allows you to get the widest color range. It uses colored LEDs, the combination of the glow of which allows you to get white. As a rule, RGB triads are used.
Also, LED-backlit monitors differ in the placement of the backlight unit.
End light
As the name implies, the light sources are located at the ends of the panel. Their radiation is directed to the light guide, which is a thick sheet of transparent polymer, perforated in a special way.
Back light
In this case, the LEDs are not arranged in lines at the ends of the panel, but over its entire area in a certain order behind the LCD matrix. In this case, it is possible to control the brightness of the illumination of a certain area.
As a rule, RGB LEDs are used for backlighting, and white LEDs for end lighting. RGB backlighting is used on expensive professional displays, thin and cheap monitors and laptop screens use white backlighting, TVs and large panels use white backlighting.
Unfortunately, it is not profitable for manufacturers to produce quality monitors with backlit RGB backlighting, so almost all monitors sold are end-lit with white LEDs.
Advantages and disadvantages of LED-backlit monitors
Color rendering
Only RGB LED backlighting has the advantage over conventional CCFL monitors. By the way, initially LED-backlighting appeared on professional monitors due to the larger color gamut.
However, white LED backlit (WLED) consumer monitors have a color gamut comparable to traditional CCFLs. In this case, the color rendering will depend on the type of LCD matrix.
Manufacturing monitors using RGB color triads is quite comparable in cost to manufacturing monitors with white LEDs. Why is it that almost all consumer monitors come with white LEDs? The answer is simple - it is profitable for manufacturers to single out monitors with RGB triads in a separate class, advertise their improved color reproduction and sell these monitors at inflated prices.
Backlight uniformity
Another myth regarding LED backlit monitors. The uniformity of illumination can be individual even for each monitor from the same series. In mass production, there is no ideal - there may be differences in the brightness of the glow along the line of LEDs, the difference in the brightness and chromaticity of RGB triads, the unevenness of the diffuser, polarizer, etc.
There were problems with the uniformity of the backlight in CCFL, and remained in monitors with LED-backlight.
Shimmer
Surely many are not even aware of the flickering of LCD monitors, mistakenly assuming that this unpleasant moment is gone along with CRT monitors. However, this is not the case - most LCD monitors have flicker, although not visible to the human eye due to the high frequency.
You can see for yourself - you just have to lower the brightness of the monitor to 0, set white background and wave a pencil in front of the screen, taking it by the tip. If a shadow fan is visible, then the brightness is controlled by PWM. The fewer "petals", the lower the frequency of the backlight lamp and the more maliciously the monitor flickers.
Pulse width modulation (PWM) was used to adjust the brightness of the CCF lamp. The brightness range of LEDs is much wider than that of CCF lamps. Therefore, it was possible to control the brightness of the backlight without PWM. However, it was not economically profitable for manufacturers to fool around with getting rid of this drawback (which is not visible to most users anyway), so the vast majority of LED-backlit monitors adjust the brightness using PWM and flicker like their CCFL ancestors.
Economy and environmental friendliness
This fact is undeniable - LED backlighting is more economical and environmentally friendly than CCFL. If we look at the number of lumens per watt for various artificial light sources, we will see that this characteristic is maximum for LEDs. In addition, LEDs, unlike CCF lamps, are mercury free.
Will LED-backlight replace CCFL backlight
Undoubtedly. Initially, this technology is more advanced. However, manufacturers are currently speculating on theoretical advantages that may not be implemented in devices for mass distribution. The challenge of maximizing profits puts technology development in second place.
The indisputable advantage of currently existing LED-backlit monitors on the market is their economy and environmental friendliness.
End-to-end LED backlit monitors have a minimal body thickness, which is attractive from a purely aesthetic point of view.
The defining parameter when choosing a monitor, as before, remains the type of matrix. It is on him that the accuracy and uniformity of color rendering, viewing angles, static contrast, speed characteristics, etc. depend.
Many people today use LED strip to illuminate a wide variety of interior elements in their homes. And often led backlight located behind the TV. It is quite easy to organize such lighting with your own hands, if you know some of the nuances that we will talk about in this article.
The most in a simple way organize this type of lighting - use a regular LED strip or PaintPack. Our today's article will tell you about the advantages of TV backlighting with LED strip, as well as what the PaintPack system is for.
Why do you need a TV backlight
It is known that watching TV in complete darkness is very harmful to the human visual system. The negative effect is especially pronounced in adults, while in children it is smoothed out due to growth and development, as well as the strong regenerative abilities of the child's body.
Note! The harm in this situation is confirmed both by many studies and by the subjective feelings of people.
Watching TV without at least backlight are fraught with a number of negative phenomena:
- rapid eye fatigue;
- drop in visual acuity;
- the appearance of headaches, etc.
Note! All this, especially rapid eye fatigue, is due to the presence of too bright and noticeable contrast between the TV screen and a darkened room. In addition, the brightness of the screen itself is capable of dynamically changing, which makes the human visual system function in extreme conditions for itself.
A bright TV screen and a dark room are a bad combination for the eyes
Prolonged or even worse - constant TV viewing, when there is no background light, and the whole room is in darkness, leads to the development of stress, as well as general fatigue. Ultimately, there is a general decline in human health, deterioration of protective and adaptive mechanisms in his body.
The solution to the problem: outdoor lighting
To date, the problem of watching television at night has a fairly simple solution, which is implemented by hand. This solution lies in the installation of additional backlighting for those models that do not have the screen edge lighting provided by the manufacturer.
But here there are "pitfalls", without knowledge of which harm to the body will continue to be inflicted. In this situation, the following nuances must be taken into account:
- general ceiling illumination will not work here, since its luminous flux will illuminate the screen. As a result, the TV contrast will begin to decrease;
Room ceiling lighting
- some the best solution will use wall sconces, floor lamps and table lamps. But in such a situation, we are faced with the problem of optimal placement of lighting fixtures., because they should not interfere with TV viewing. If such lamps are located behind the viewer, they will create glare on the screen. And if you place them near the TV, then they will attract attention, distracting;
Lamp next to the TV
- background lighting. The creation of backlighting around the TV is devoid of all the disadvantages of the previously listed methods of placing lighting devices. To the pluses this method the fact that such lighting with the help of modern technologies (LED strips and PaintPack) can be easily organized with your own hands also applies.
As you can see, backlighting is the best option in this situation.
Features of backlighting: what to consider
The background lighting, which is organized with your own hands behind the TV, must meet a number of requirements:
- be unobtrusive so as not to attract undue attention to yourself;
- give an optimal level luminous fluxto prevent eye fatigue from watching TV for a long time at night;
Background lighting
- do it yourself easily and quickly;
- the light sources with which it is formed should not be heated. This factor can lead to the risk of a fire hazardous situation, since the TV itself, even modern models, heats up during its operation;
- luminaires used for backlighting must be environmentally friendly and not contain harmful substances. Such requirements are due to the fact that being placed behind equipment of this kind, they are at risk mechanical damage... Especially if there are small children in the house constantly scurrying around the equipment.
Of the whole variety of lighting devices actively used in the system of outdoor and indoor lighting, in this situation, LED products are most suitable for the above requirements, namely, LED strips.
Benefits of LED TV lighting in the background
Using led strip as a backlight for any equipment in the house, it has the following advantages:
- the ability to choose the backlight of any color. LED products are distinguished by a fairly wide range of all possible colors and shades;
Neon lights
- simple DIY installation. Due to the presence of a self-adhesive base, such products can be glued to any surface, even the back cover of equipment;
- excellent luminous flux, which is several times superior to all other light sources;
- lack of significant heating during operation;
- completely environmentally friendly products that cannot break and injure a child;
- low power consumption;
- long period of service.
Separately, it should be noted that as a decorative and background illumination of a TV, LED strip can give any room an atmosphere of celebration, romance or fabulousness.
With such advantages, it is not surprising that it is the LED strip that has become the most widely used as a backlight not only for TVs, but also for various decorative elements of the interior.
Options for installing LED backlight for TV
As we have already found out, the simplest and affordable way DIY background lighting is to install an LED strip on the back of the TV. This procedure will not take you much time and will require the following steps:
- we put the TV on a prepared table, which is covered with a cloth. This must be done carefully so as not to damage the screen;
- along the perimeter of the back cover with glue LED strip. Remember that it can have any glow color;
- since the TV will heat up during its operation, the tape should additionally be planted on glue every 5-10 cm;
Installing the Ribbon
- further in the corner we solder the strips of tape. Here you can buy special corner connectors;
- then we connect the power supply to them with the required power for the tape used in the backlight. The circuit will need to include a relay or a 5 → 12 volt converter. This is necessary if the device has USB outputs;
Connection diagram
- backlight switch can be attached in the corner.
Note! The tape must be firmly attached so as not to provoke a short circuit.
PaintPack system
In addition, PaintPack lighting systems can be used.
The PaintPack system is a small box. Removable LED strips are connected to it from both sides. PaintPack is also equipped with an indicator, a power connector and a microUSB through which it is possible to connect to a computer. Also included in PaintPack is a master connector. It can be used to connect two devices in series.
Note! This fixture is great for background lighting and computer monitors.
Install the system case on the back of the TV. Further, according to the above algorithm, we mount and connect LED strips.
if you plan to connect PaintPack via USB to a computer, you will need to install the required drivers, as well as configure the device in the bundled program. For this you need the AmbiBox package.
Conclusion
Deciding to create a TV backlight best source light than LED strip you will not find. In this situation, all manipulations are quite easy to do with your own hands, which is another plus. What's more, by using PaintPack, you can make your DIY backlight technology more technological.
Lighting in the kitchen of a small apartment
Hello!
Sometimes, when repairing LCD backlight , difficulties arise in acquiring the necessary luminescent (CCFL ) lamps ... In such cases, you can convert the lamp backlight to LED. Such alteration is not so difficult, and there are no special problems with spare parts.
In this article I offer you the principle of such a reconstruction in the form of some kind of instruction.
Replacement steps LCD backlight on LED:
Disassemble a monitor or TV. After removing the plastic case, carefully disconnect the wires from the board, remove the metal frame from the LCD module and take out the matrix. With the matrix, you need to be especially careful not to damage the fragile connecting cables. If everything is done correctly, then full access to the electronic board, power inverter and backlight elements will be open.
2. Disconnect the canisters from lamps from the matrix or the lamps themselves, if they are installed without cases.
3. Disconnect old lamps and dispose of them. With elements CCFL you also need to be extremely careful, because they contain mercury.
4. We pass to the stage of replacement. You first need to purchase an LED strip, preferably with a margin so that it will be enough to replace all the lamps (measure the length of the lamp and multiply by their number). It should be as narrow as possible and with at least 120 LEDs per meter. To make the backlight more pleasing to the eye, it is better to take LEDs with white glow.
5. The tape with LEDs must be glued to the double-sided tape where the lamps were. Further, wires from old lamps are soldered to the contact terminals of the tapes and insulated with hot glue. You can immediately check the performance of this design by connecting the wires to an external power source.
6. Now you need to connect the backlight on the monitor or TV power board. To do this, you need to find the jumpers marked with the inscription "12 V" and solder the backlight wires there, observing the polarity accordingly. Reassemble the monitor in reverse order and enjoy your invention.
Backlight in this case it will work when the device is connected to the network.
To control the backlight and bring it back to normal, you will have to work hard. The wires leading to the LEDs must be powered in such a way that it is possible to turn on the backlight when you press the on / off buttons and adjust its brightness. There are 2 options for this:
1.Create a power supply circuit and adjust the backlight brightness by ourselves:
On the power microcircuit of the monitor or TV, we are looking for a plastic box (connector) with wires removed from it, where each socket is signed on the board.
Here we are interested in the "DIM" output. He will be responsible for supplying a signal to on / off and adjusting the brightness by changing the duty cycle in the PWM controller. The duty cycle of the pulses changes until the desired brightness level is set, and the limit values \u200b\u200bwill just correspond to switching on and off.
Now we need an N-channel field-effect transistor (field worker) anyone. Wires from the LED strip with a minus are soldered to its drain (Drain), a common wire from the backlight is also connected to the source (source), and the gate (gate) through a 100-200Ω resistor and any wire is connected to the DIM pin.
We still have wires from the backlight with a plus, we output them to the + 12V power supply on a microcircuit and solder them.
Now we set the backlight to its rightful place and assemble the monitor in reverse order. Do not forget about caution and accuracy in handling the matrix and filters, so that dust does not get in and the loops are not damaged. Everything, you can use it.
The second way, more costly, but convenient, is to buy a ready-made lED backlight with its own inverter :
Again, pay attention to the plastic connector and the DIM (brightness) pin and the on / of pin (it's better to use the pinout).
Using a multimeter, the places on the control unit of old lamps are determined, from which the signal to brightness and on / of goes.
Now the wires are soldered to the found places inverter new lED backlight .
Still, it is better to unsolder the jumpers from the inverter power supply of the old lamps so that the backlight is regulated by the new inverter.
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LED TVs have gained particular popularity among users due to their characteristics and quality. However, not everyone understands what a led TV is, how it differs from others and how it works this technology... Therefore, today we decided to talk about the advantages and disadvantages of this technology, as well as answer other questions.
In television equipment, LED means a backlit liquid crystal LCD television light emitting diodes edge or direct. Older TVs used a cold cathode backlight. Thanks to the new backlight technology, the image quality has improved, which means that the brightness, contrast, color depth and color reproduction itself have improved.
A large number of small, individual LEDs are used to create this edge-lit monitor. In this case, each of the diodes is responsible for the backlighting of a certain area of \u200b\u200bthe screen. This technology allows you to reduce the thickness of the TV. In addition, unlike the fluorescent lamps that are used in LSD TVs, the LEDs used for both direct and edge backlighting last much longer.
Features of LED backlight
In fact, most of the parameters in ice TV depend on the quality used. It affects parameters such as:
- Contrast;
- Brightness;
- Viewing angle;
- Black level;
- Color gamut;
- Color rendering;
- Response time;
- Update frequency.
The increase in screen contrast has led to the emergence of such a thing as dynamic contrast. This means that the brightness of the glow of each of the diodes with direct backlighting is controlled separately from the rest of the sections. This does not change the static contrast, since it depends on the display matrix.
In addition, a new local dimming technology is added to both direct and edge backlit LED TVs, providing local dimming that allows you to control groups of LEDs. This dimming method is quite popular, but it also has some drawbacks.
- The color is not uniform, so you may notice dark and bright spots where there is no backlight or it is very bright.
- Fine details of the image disappear in dark areas.
- Colored halos appear at the junctions of contrasting colors.
However, do not worry, as they are not visible in the usual picture.
Types of ice backlights
The backlight in such screens is divided into several main types:
- Direct - blue, red and green diodes are evenly spaced from the back of the matrix, forming a screen. Direct technology achieves the most optimal color gamut and ensures best quality transfer of colors. However, it should be noted that displays with direct technology consume more electricity and are thicker.
- Edge - White LEDs along with a diffuser panel are located around the perimeter of the screen. Edge TVs are more energy efficient and thinner, but good local dimming is difficult to achieve. Edge-type backlighting is the most popular, especially on small diagonal TVs.
Composite LEDs
Direct lighting in TVs is different from the classic RGB LED. Composite LEDs of three colors are used to improve color gamut. However, the desired color gamut did not work out, as it was often too small. Therefore, on the basis of this technology, other light diodes were invented, allowing to achieve desired result... So, today quantum dots or GB-R LED and RB-G LED diodes are used in ice TV.
In GB-R technology, blue and green LEDs are combined into one, covered with a red phosphor, and in RB-G, red and blue are combined, which is eventually covered with a green phosphor.
Disadvantages and advantages of LED TVs
Benefits
disadvantages
High contrast video High price High clarity and realism achieved through high response speed A small number of TV models with a small diagonal Environmentally friendly due to low energy consumption, as well as the absence of mercury and harmful aerosols in the backlight of the edge type Stylish appearance Tv Durability of LEDs A large number of additional functions Availability of 3D and Smart TV functions in some models As a result, it can be noted that such TVs have a large number of advantages, and of the disadvantages, in fact, only a "biting" price.
