Let's take a closer look at the main types of LCD matrices used in LCD TVs:

As already stated, there are three main types LCD matrices(what is a matrix can be found in the description of LCD technology):
TN (Twisted Nematic)- the literal translation sounds like "twisted crystal". You can often see the abbreviation TN + Film, in this case Film stands for an additional outer film coating that allows you to increase the viewing angle of the TV. The TN matrix works as follows:

TN matrix circuit:

No voltage

There is voltage

As can be seen from the figure, the control electrodes are located on both sides of the substrate. When the transistor is off, i.e. electric field is absent, the molecules of liquid crystals are in their normal state and are arranged so as to change the angle of polarization of the light flux passing through them by 90 degrees (liquid crystals form a spiral). Since the polarization angle of the second filter is perpendicular to the angle of the first, the light passing through the inactive transistor will go out without loss, forming a bright point, the color of which is set by the light filter.

When the transistor generates an electric field, all liquid crystal molecules line up in lines parallel to the polarization angle of the first filter, the light flux completely passes through them without changes. The second polarizing filter completely absorbs light, creating a black point in place of one of the three color components.

Technology based on TN matrices is one of the very first, now it takes a confident place in the manufacture of inexpensive LCD matrices. The main disadvantage of this solution is the fact that it is impossible to completely control the rotation of the crystals and this leads to the fact that part of the light still passes through the shutter. Outwardly, this is noticeable in a slight decrease in the contrast of the screen. Blacks are more similar to grays. Also, when the connection between the electrode and the crystal is broken, bright points are observed, or as they are also called - defective pixels.

Nevertheless, the use of such LCD matrices, despite the above disadvantages, is more than justified by their price! TVs based on TN technology have long and confidently occupied the niche of budget solutions.

The next decision in LCD matrices is MVA (Multi-Domain Vertical Alignment) technology, which literally translates as "multizone vertical alignment". This LCD matrix is ​​developed by Fujitsu.

MVA (PVA) matrix circuit:

No voltage

There is voltage

Gating electrodes, as in TN matrices, are located on both sides of the substrate, but are divided into cells or zones formed by protrusions on inner surface filters. The purpose of this design is to allow liquid crystals to move independently of their neighbors in the opposite direction. This allows the observer to see the same color shade regardless of the viewing angle. Unlike the TN matrix in MVA, in the absence of voltage, the crystals are oriented perpendicular to the second filter (each of its protrusions), which at the output gives a black point, that is, gives a darker black color!

With an increase in the electric field, the molecules turn slightly, forming a point at the exit gray(half intensity). It is important that the light intensity for the viewer does not depend on the viewing angle, since the brighter cells in the field of view will be compensated for by the darker ones nearby, this technique allowed to solve the problem low angles review without the film coating used for TN matrices!

With further increase electrical potential the crystals will line up so that at different viewing angles, the point of maximum brightness is visible at the output.

It should be added that at present the MVA technology is the most promising. The biggest problem is the flaw technological process and as a consequence, a higher price for TVs of this design.

I would like to say a few more words about PVA technology not covered here, but more commonly found on store price tags. This development was implemented by Samsung a year after the MVA appeared, and is now the market leader. PVA (Patterned Vertical Alignment) in general outline repeats MVA technology. It differs, on the one hand, in slightly larger viewing angles, but on the other - in the worst response time. Perhaps one of the development goals was to create a technology similar to MVA, but free from Fujitsu patents and associated license fees. Accordingly, all the disadvantages and advantages of PVA panels are the same as those of MVA.

Consider the latest technology in this IPS (In-Plane Switching) review, which literally means "switching in one plane". Indeed, the control electrodes are in the same plane here. This technology is developed by Hitachi.

IPS matrix scheme:

No voltage

There is voltage

In the absence of an electric field, the molecules of liquid crystals are arranged vertically and do not affect the polarization angle of the light passing through them. Since the polarization angles of the filters are perpendicular, the light passing through the switched off transistor is completely absorbed by the second filter.

When turned on, the field rotates the liquid crystal molecules 90 degrees relative to the resting position, thereby changing the polarization of the light flux, which will pass through the second polarizing filter without interference.

This technology is a compromise solution. It allows you to increase some characteristics, such as excellent color rendition, large viewing angles and, moreover, if the connection between the electrode and the crystal is broken, the broken pixel does not glow brightly, but is darkened, which is less noticeable to the eyes. On the other hand, electrodes located on one side block part of the transmitted light, which leads to a decrease in contrast, the same reason is responsible for an increase in the pixel response time, since it takes more energy to rotate the crystal and, accordingly, more time.

Now, having familiarized yourself with the main differences of certain technologies, you can start choosing an LCD TV!

The popularity of modern LCD TVs is off the charts. They have completely replaced the old models and have long held a leading position in the market. The main element of any LCD TV is a matrix. She is directly responsible for the quality of the "picture", therefore, before choosing a TV model, the future owner needs to determine which matrix is ​​better.

Today there are three main types of LCD TV matrices:

• MVA (PVA);

To understand which option of the above is better, you need to study in detail the features, advantages and disadvantages of each.

TN matrix

Twisted Nematic is one of the most common types. The TN + Film matrix is ​​also very popular, where the set-top box implies an auxiliary coating, which makes it possible to expand the viewing angle of the TV.

In this device, the control electrodes are located on both sides of the substrate. When the transistor is not working, there is no electric field, but the crystal molecules are characterized by normal state, and their construction resembles a spiral. Since the polarization angles of the first and second filters are perpendicular to each other, the light that passes through the inactive transistor freely goes out. This light forms a bright point, and its color is determined by a light filter.

After starting the transistor, it begins to create an electric field, so the crystal molecules are built in a line parallel to the polarization angle of the first filter. Passing through them, the stream of light does not change its characteristics. Another filter is capable of fully absorbing light, generating a black point in the place where there was one, consisting of three color components.

TN matrix for TV is one of the earliest technologies, however, according to many experts, it is better in certain aspects than modern counterparts. Today given type is actively used in the production of budgetary liquid crystal matrices for TVs.

The main disadvantage of this solution is the impossibility of complete control of the movement (rotation) of the crystals. This drawback can cause light to pass through the shutter. For the viewer, this translates into a decrease in contrast, and blacks become gray. In addition, a phenomenon called “dead pixels” may occur.

Despite the above disadvantages, the use of TN matrices is fully justified by their affordable cost. Therefore, this budget solution is in great demand.

MVA (PVA) matrices

The next type of matrix is ​​Multi-Domain Vertical Alignment (MVA), or multi-zone vertical alignment. This variant is the brainchild of the world famous Fujitsu company.

In this matrix, the gate electrodes are located in the same way in comparison with TN matrices, while they are on both sides of the substrate. The difference lies in their division into special cells or zones. Cells (zones) are created by protrusions that are present on inner sides filters. The main essence of this design is the ability of crystals to move freely. This feature allows the viewer to observe shades that do not change depending on the viewing angle. Therefore MVA (PVA) are considered better than TN matrices.

The next difference between MVA and TN is the perpendicular arrangement of liquid crystals relative to the second filter in the absence of voltage. This results in richer blacks. After increasing the electric field, the molecules rotate, creating a gray dot. In this case, the viewing angle does not matter for the light intensity, since the bright cells visible to the user are completely compensated by the dark ones that are located nearby. This solution made it possible to eliminate the problem of small viewing angles inherent in TN matrices. In this regard, MVA (PVA) is much better than TN.

IPS matrices

An interesting type of matrix for a TV is IPS. Her main feature consists in the arrangement of the control electrodes in only one plane. This version of the matrix for a TV is better, according to fans of the world famous company Hitachi, which is the developer of the above technology.

When there is no electric field, the molecules of the crystals are arranged strictly vertically, which makes it impossible for them to influence the angle of polarization of the light that passes through these molecules. In this case, the polarization angles of the filters are at right angles, so the light passing through the transistor is absorbed by the second filter.

Modern TVs with IPS matrix occupy a leading position in the domestic market. This is due to a number of indisputable advantages, which will be discussed. However, it should be understood that, like any other technology, IPS also has its drawbacks. This will also be discussed.

So, in order to understand what the advantages and disadvantages are characteristic of IPS TVs, you should first understand what IPS means, as well as what IPS TVs are in general.

1. What is IPS

IPS is a type of liquid crystal matrix that was developed back in 1996, but has become widespread only since 2010. The essence of this technology lies in the fact that the liquid crystal molecules are located parallel to the plane of the screen. This explains the name of the IPS development - In-Plane Switching. This solution eliminated some of the disadvantages of TN displays. However, at the same time, initially this technology also received its disadvantages, which will be discussed below.

From the advent of IPS-displays to the present day, this technology has been constantly evolving and improving. At the moment, a TV with an IPS matrix has very high indicators of quality, clarity and image accuracy, and also has a high resolution screen.

1.2. Advantages of IPS technology

The main advantage that TVs with IPS displays have is color reproduction. Modern IPS matrices are capable of displaying more than 16 million colors and shades, making the image as natural and accurate as possible. In addition, there are other significant advantages:

• High level brightness and contrast;
• The finest pixel grid among LCD screens;
• Highest image clarity;
• Maximum color depth (black and white).

All these advantages have contributed to the fact that the overwhelming majority of manufacturers of TVs, monitors, smartphones, tablets and so on are increasingly giving preference to IPS matrices.

It should also be borne in mind that not all IPS screens are created equal. There are several types of these matrices, which have some differences, including in terms of cost.

1.3. Types of IPS matrices

At the moment, there are many varieties of IPS matrices. It is worth noting just a few of them that enjoy most widespread in the domestic market. So, the most recent developments of IPS technologies:

• AS-IPS;
• H-IPS;
• AH-IPS;
• E-IPS;
• P-IPS;
• S-IPS.

All these types of matrices are actively used in the production of modern televisions. Of course, they have some differences, for example, the E-IPS matrix is ​​the cheapest and is designed for the middle and budget class of the market.

AH-IPS and P-IPS, in turn, are the most advanced and modern developments. They have the highest cost, but at the same time provide best quality Images. You can learn more about the types of matrices and their advantages and disadvantages from the corresponding article.

1.4. Backlight type in IPS matrices

Very often on store shelves there are IPS TVs marked with LED. LED is not a type of matrix, but a backlighting system that is based on LEDs.

This technology is relatively new and solves a number of problems that could not be dealt with. fluorescent lamps... It should be noted that the vast majority of modern TVs are equipped with LED backlit.

The main feature of this solution is to achieve the most uniform distribution of light over the plane of the screen. This, in turn, can significantly improve the image quality. In addition, LEDs have a higher radiation intensity. In other words, they emit much more bright light, which increases the brightness and contrast of the image. Thanks to the small size of the LEDs, it became possible to use the matrix backlight, which in turn made it possible to create TVs with a large diagonal - more than 20 ”.

2. TVs on IPS matrix

Nowadays, in the domestic market there is a huge number of a wide variety of TV models, which, moreover, have a wide variety of sets of functions and capabilities. On the one hand, such a variety provides a wide choice for buyers, but on the other hand, it is quite difficult to choose a TV that will the best way meet certain requirements.

First of all, it should be noted that a certain TV set corresponds to a certain situation. So, if you do not need high screen resolution and impeccable image quality, then you can purchase a cheaper model without spending big money... However, for those on an unlimited budget and who value picture quality, there are more expensive TVs.

The IPS matrix in TVs is the most important component on which most of the technical characteristics of TVs depend. You already know the types of matrices, but it is worth noting that even identical matrices can have some differences. This is because each manufacturer uses different components and materials. The quality of the matrix itself depends on the quality of the materials.

2.1. Types of TVs with IPS matrices

In addition, when choosing a TV, you should decide for what purpose it is needed. And already based on personal needs, you can choose a device. Modern IPS TVs provide excellent picture quality, and many can be used as PC monitors.

If you plan to connect the TV to a computer, then you should pay attention to its characteristics and the presence of all the necessary connectors that are required to connect the appropriate cables. It should be noted that the vast majority of modern TVs have a similar set of interfaces for connecting additional equipment... These include the following connectors:

• HDMI is the connector that allows you to connect your PC and a host of other digital devices to your TV. In this case, through this connection, not only the image is transmitted, but also the sound;
• DVI is a digital interface that allows you to connect a computer or satellite TV receiver to a TV;
• VGA is an analog connector for connecting a PC, satellite TV receiver, DVD and other equipment;
• Analog input for a conventional antenna;
• Composite interface for analog connection video and audio devices;
• USB port that allows you to play video, photo and audio files from flash drives.

Of course, depending on the models, this set can be expanded and supplemented with other connectors, such as fiber-optic audio input and so on.

As noted above, modern TVs with IPS matrices occupy a leading position in the domestic market and enjoy the greatest distribution among consumers.

This type of matrix allows you to display high quality videos, including 3D images. Moreover, the 3D function can be both active and passive.

If we talk about the size of TVs, then this technology allows you to create devices of any size without sacrificing image quality. Therefore, the choice depends only on your preferences.

2.2. Advantages and disadvantages of TVs with IPS matrices

Knowing everything specifications, as well as the features of TVs with IPS-displays, you can draw certain conclusions. First of all, it is worth noting the main advantage of the IPS-matrix - the most natural color reproduction. However, there are other advantages:

• LCD TVs with IPS matrix are the most affordable. Their direct competitor is a plasma panel, but in terms of cost, plasma is significantly more expensive than IPS. And this does not mean that plasma is better. The cost is due to technological features.
• The durability of IPS TVs. Such devices have a very long service life. Compared to the same plasma, the IPS display can last 2-3 times longer.
• IPS LED backlighting has high frequency flicker, which is completely invisible to the naked eye and is not able to affect the organs of vision. This means that viewing an IPS TV is more comfortable and negative impact on the eyes, even with prolonged TV viewing.
• The high refresh rate of the IPS screen makes it possible to produce TVs with 3D function, both passive and active.
• IPS screens with LED backlighting have high brightness and contrast, which is almost equal to plasma panels.
• Large viewing angles that only plasma panels can match.

In addition to the listed advantages, there are others, but they are insignificant.

Until recently, IPS matrices had the disadvantage of response time, however, modern technologies allowed to eliminate this disadvantage, thanks to which TVs with IPS matrices occupy a leading position.

3. LG TV with IPS-monitor: Video

In this review, I will try to give a list of TVs / monitors with an ips matrix that are currently on sale on computeruniverse.ru and tell you what criteria exist in choosing these panels. After you decide on the choice of a model, at the first stage of ordering in the online store https://www.computeruniverse.ru, do not forget to use the discount code FWANUVT

I remind you that products in the category "TVs" do not ship to Russia (), so we will research and buy panels from the section PC accessories -> Monitors... Let's go into this category. On the right we see a search tool called Product filter... We are interested in TVs with an ips matrix, so you need to go to the advanced filter tool by clicking on the text More detailed properties.

The filtering options are very rich.

Selecting monitor-TV parameters

So, we make a choice of a monitor / TV for home use... What criteria will we be guided by?

Can choose manufacturer monitor.

The range includes monitors from companies such as 3M, Acer, AG Neovo, AOC, Apple, Asus, BenQ, Dell, Eizo, Fujitsu, Fujitsu Computerus, HANNspree, HKC Europe BW, HP, Hyundai ImageQuest, iiyama, LaCie, Lenovo, LG , NEC, NEC Display Solutions, Philips, Quato, Samsung, Toshiba, Tyco, View Sonic, Wortmann.

Apple LED Cinema Display 27 ″ now costs about 30 thousand rubles.

I must say right away that everything here depends more and more on the personal preferences of each and it is impossible to say “which manufacturer of monitors is better” unambiguously. Almost all companies have both expensive and budget class models. But, for example, I make my choice in favor of LG, since their monitors and TVs are somewhat cheaper than similar models, say, from Sony. Apple so generally extremely overprices all its equipment, but often, those who overpay them never regret it. Samsung, like LG, has a very rich lineup of models in any range and the pricing policy is very similar. Asus does not specialize in selling monitors, and moreover, no one knows them as a manufacturer of such equipment, so the company has to set prices below average (unlike, for example, prices for motherboards and video cards, where Asus is “king and God”). However, they also have outright hack-work, since the manufacturer, in order to save money, uses very cheap components. BenQ has a huge number of budget models, which is why the shelves of our computer stores are littered with their monitors. You can argue for a long time about the pros and cons of a particular company, and in the end, you can choose something completely different, regardless of the name of the company.

Next comes Screen diagonal

Choose from 26 (10.4 ") to 165 cm (65") monitors.

Optimal size monitor for work and play? I'm afraid that everything here also depends on personal preference and the location of the workplace. In the era of tube monitors, the optimal size was 15-17 inches, now only compact laptop screens have this size. When you try to find a regular 17-inch monitor in a regular computer online store, you will see next result: There are no products in this category. The conclusion suggests itself, modern tendencies dictate their own rules: minimum size monitor for work and play is 19 inches. This is an option for those users who have small room and a small table. The best option is a size of 22-24 inches and if you decide to completely upgrade your computer, then it is better not to look at monitors with a smaller diagonal. Well, if it comes about a TV that will be used as a screen for a computer, then 24 inches will also be small. In this case, I advise you to turn your attention to the 27 "panels. This is the minimum size for comfortable TV viewing and the maximum size for comfortable work at a computer desk.

Permission screen

Monitors with screen resolutions 800 x 600, 1024 x 768, 1152 x 870, 1280 x 1024, 1280 x 1040, 1366 x 768 HD Ready, 1400 x 900, 1440 x 900, 1600 x 900, 1600 x 1200, 1680 x 1050, 1920 x 1080, 1920 x 1200, 2560 x 1080, 2560 x 1440, 2560 x 1600.

Statistics show that the most popular resolutions over the past year are 720p and 1080p (FullHD)

Everything is very clear here. Optimum resolution for 17 '' and 19 '' monitors is 1280 x 1o24 and 1280 x 1040, 1366 x 768 (HD Ready). Optimal resolution for 22-27 inch panels is Full HD 1920 x 1080 (1080p). Statistics for the last year of the website of the Console Community of Russian Regions shows that the most popular screen resolutions are 720p - (50.4% =) and 1080p (33.4% =). The other 25 percent are phones, netbooks and small tablets. According to statistics, more than 70 percent of the population use widescreen monitors.

Response time: 1 to 40 ms.

Evolution of monitors - the minimum response time of IPS matrices over the years.

In TVs with IPS matrix, it is difficult to provide good time response. So 2-5ms is a great result for them. A response above 14ms will be noticeable in dynamic games. If you are building a gaming computer, then you should cut off monitors with a response of 16 ms or higher to avoid blurring fast moving objects on the screen. All modern TN monitors, as a rule, have a response time less than 5 ms.

Aspect ratio: 4:3, 5:4, 16:9, 16:10, 21:9.

As the statistics show for the last year, more than 70% of users work on widescreen monitors 16: 9 & 16:10

Modern monitors have aspect ratios of 16: 9 and 16: 9. A 4: 3 format is considered obsolete and rarely used. modern manufacturers monitors. As a rule, this format can only be found in specific devices. For example, in iPad tablets.

Availability of an entrance VGA, DVI, HDMI, DisplayPort.

Dell Utrasharp U2711 Monitor, Back View. The figure shows VGA, DVI, HDMI, DisplayPort connectors

For many computer scientists, the VGA format is still the standard. But no matter how much we get used to the 1987 connector, current trends in the high-tech world dictate different rules to us. High Quality picture and sound at the same time can be achieved only by connecting your computer to the monitor via an HDMI cable. DVI and DisplayPort as well as HDMI are digital formats, however, sound cannot be sent over it. If you have an HDMI connector on your video card, you should choose a monitor with an HDMI input.

The presence of speakers in the monitor

If we are talking about a TV or monitor with a TV tuner, then in almost 100% of cases it has speakers. But if you just choose a monitor, I want to warn you that not all such panels are equipped with built-in speakers. As a rule, monitors and TVs up to 27 inches have weak speakers with a power of 2 × 3 W, or 2 × 5 W, which is comparable in quality to inexpensive speakers by Genius. Having bought a 23-inch TV from LG from the premium series, with an advanced IPS matrix, I realized that I would not be able to listen to music through the built-in speakers. Not that the sound was very quiet and weak - it turned out to be poor and disgusting.

Built-in TV tuner

The presence of an analog antenna on the TV 27 LED IPS TV LG M2752D-PZ (1920 × 1080, HDMI, USB)

Built-in TV tuner turns your monitor into full TV who can receive digital channels. A real TV remote control usually goes to such a "monitor". Due to the built-in TV tuner, the thickness of the area in which it is located is slightly larger, but what an increase in functionality!

The presence of a USB network hub

The presence of a USB connector on the TV

The presence of a USB connector is an integral part of Smart TV technology, since a mouse and keyboard are connected through this port for comfortable work with the built-in Internet browser of the TV and other applications. However, I have not seen a single TV monitor up to 27 inches, which would support Smart TV. In small monitors, via USB, you can connect flash drives and external hard drives and play multimedia files (video, music) recorded on the data drive with the built-in media player on the TV. The list of formats supported by a particular TV can be viewed on the official website of the manufacturer or from other sources (for example, Yandex.Market or on the website of the wholesale computer base nix.ru).

Availability of 3D function in the TV

Since mid-2010, a real plague has gone all over the world, which is called 3D fashion. Well forgotten old technology sparkled with new bright colors in the hands of modern marketers. Manufacturers of TVs and monitors also did not ignore this event and released their "new generation" panels - for the fashionable word 3D they had to pay 1.5 or even 2 times more. 3D images can be viewed with specially designed glasses, and the most advanced TVs can display 3D images without additional accessories you need to look!). All 3D TVs can play both traditional 2D and 3D signals. Fortunately, the 3D boom is dying down now, 3D TVs are getting cheaper and can be bought at an affordable price. However, even now I would put the need for this option under one big and bold question mark.

The presence of a touch screen.

Full support for touch control appeared only in the new operating system Windows 8, up to this point, the touch screen was the lot cell phones and tablets. If you constantly sit close to the monitor and poke your finger at the large screen, then not only the hand will get tired, but the eyes too. Touch control on the monitor, in my opinion, can only be a pleasant option, which in some cases will indeed prove to be very convenient, but in no way a replacement for a keyboard and mouse.

Monitor color.

Monitors are presented in the following color options: anthracite, beige, gray, red, black, black / silver, black / white, silver, white.

As they say - there are no comrades for taste and color. Black and black / silver are considered classic colors, but who knows - maybe a red monitor will fit better into the interior of your room?

Price

At the time of writing the review, it ranged from 70, - € to 6.000, - €.

The price of a monitor depends on many factors and they are all listed in this article. First of all, it depends on the size of the screen. In the second - on the type of matrix, in the third - on the presence of a TV tuner. Brand, 3D presence, USB, response time, contrast, brightness and many other characteristics can also affect the price.

Brightness (cd / m²) of the monitor

You can choose from options from 150 cd / m² to 700 cd / m².

The higher the brightness, the better, respectively. Very few panels have a brightness value higher than 350 cd / m². For everyday use, 220 cd / m2 is sufficient. In comparison, older CRT monitors had a brightness of less than 100 cd / m² and no one complained. Great importance This indicator may be required, for example, if you plan to display advertisements or presentations to the general public on your monitor.

Contrast:

Ranges from 350: 1 to 100,000,000 (dynamic).

The higher the ratio, the clearer the picture will be. Contrast affects the depth of the black.

The presence of a back LED light.

LED backlighting is when the LED elements of the monitor are placed directly behind the LCD screen. Side illumination is somewhat inferior to the back one, since when backlit, the diodes are integrated into the liquid crystal matrix, after which the light is scattered across the panel and provides an even light source behind the monitor. Backlit panels also benefit in contrast and color reproduction.

Panel type

There are TN, IPS, MVA, PVA, VA, PLS matrices.

TN- an ancient type of matrix as the world, it is installed in all budget models of monitors, and in some inexpensive TVs. Cons: such panels have mediocre viewing angles and unnatural color reproduction, which makes it impossible to correctly process photos on such monitors. Pros: excellent response time (cell response rate), minimal power consumption, low price.

IPS Is the best color reproduction and maximum viewing angles. Poor response times and high price are the main drawbacks of panels with such a matrix.

Matrix Pls is a type of IPS and has no major differences.

MVA and PVA- like IPS, it produces the deepest and purest black color. Multi-Domain Vertical Alignment (MVA) technology is more advanced and provides the same image quality with different angles review. In terms of brightness and contrast, the MVA and PVA matrices have no competitors. MVA / PVA's color rendition is excellent, but still inferior to IPS.

For clarity, the computer supermarket NIKS compiled a comparative table of matrices MVA / PVA, IPS

Matrix type	Response time	Viewing angles	Color rendering	Contrast
TN + film	5	3	3	3
IPS	4	5	5	4
MVA	3	4	4	4
PVA	3	4	4	5
S-PVA / S-MVA	4	5	4	5

Comparison of IPS, MVA, TN in pictures.

Wall Mountable (Wall Mount)

There are Vesa standards 75 x 70, 75 x 75, 100 x 100, 100 x 200, 200 x 100, 400 x 200, 400 x 400 mm).

Most conventional computer monitors cannot be wall-mounted, however, with monitors / TVs, the situation is much better. If you choose a TV, I would advise you to set the filter to “Yes, wall mounting possible ”(Yes). Modern tools for mounting cost from 400 to 1000 rubles, and, as a rule, are universal, so you should not get hung up on what type of standard is supported by the monitor.

Also, in the filter, you can set the possibility height adjustment of the monitor and turning.

Choosing a TV 23-27 inches with an IPS matrix

So, now I will try to set up the filter so that it displays all TVs with IPS matrix... To do this, I selected the "TV tuner" option and indicated the panel type as "IPS-Panel".

IPS TV 27 inches with 3D function - LG Flatron TM2792S, black

This ultra-thin and stylish TV monitor can be purchased at a fairly high price - 369 euros - link to the product. The presence of good functionality: speaker, TV Tuner, 3D mode, and all the necessary connectors (HDMI, DVI, VGA), unfortunately, does not compensate for the lack of the possibility wall mount this monitor.

IPS TV 27 inches - LG Flatron 27MA73D-PZ, black

IPS panel LG Flatron 23MA73D-PZ, black color

The cost is 210 euros - 8600 rubles. The 23-inch version is identical in specifications to the 27MA73D-PZ. The difference in price is about 2,000 rubles. For those who need, first of all, a monitor for a computer, and secondly - a TV, this option will be quite suitable. Buy . (Discount coupon - FWANUVT)

TV with IPS matrix LG Flatron M2732D-PZ, black

The models of the 32D and 52D series turned out to be more affordable in terms of price. For example, the M2732D-PZ will cost 222 euros - 9,000 rubles (price as of April 2013). The disadvantage (compared to the monitors discussed above is one) - the lack of a USB port and a media player, respectively. There is also VGA, HDMI, TV-Tuner. The response time is excellent - 5ms, the contrast and brightness are standard values... Buy . (Discount coupon - FWANUVT)

[Editor's Choice] TV Monitor with IPS - LG M2352D

The 52D series differs from the 32D in the presence of a network USB hub, as well as increased contrast. Perhaps, it is the models of this series that I recommend taking. This is the lowest price for IPS-TVs, while all the necessary connectors and functions are present - USB media player, HDMI, VGA input, wall mount. You can buy the 23-inch version on computeruniverse for April 2013 for 174 euros (~ 7,000 rubles). If you use a discount code FWANUVT, then you can reduce the cost by 5 euros.

[Editor's Choice] TV Monitor with IPS - LG M2752D schwarz

This model was not found in the search results, however, it also has an IPS matrix. The cost is 206 euros ~ 8200 rubles. List of functions and connectors HDMI, VGA, speakers, TV-Tuner, there is a wall mount (however, what standard is used is not specified anywhere, so use some kind of universal mount). Perhaps this model is the most suitable option for the price and quality. Buy . (Discount coupon - FWANUVT)

As you can see from the search results, LG is the only company that makes IPS monitors up to 27 inches at such a low price. By the way, in all the TVs described above there is a component input, which turns out to be nice bonus for owners of consoles such as Xbox, PS2, Wii, Gamecube. Let's see what the results will be in the section of conventional monitors with an IPS matrix.

Choosing a computer monitor 22-27 inches with an IPS matrix

In the search criteria (filter), set Panel type: IPS-Panel, Screen diagonal 22-27 ", Response time 1-16 ms. Let's see what kind of result we got.

Do not forget to order "Price ascending". The first in the results was the LG Flatron IPS234V-BN monitor for 122 euros. At first glance, everything in it is wonderful, everything you need is there (VGA, HDMI, DVI), the response is good, but judging by the reviews, it has a rather fragile assembly. This is the cheapest 23-inch IPS monitor. Although if you need speakers built into the display, then you can turn your attention to a panel with similar characteristics to the Acer H226HQLbmid, which costs 126 euros. For 131 euros, you can get a 23-inch ViewSonic VX2370Smh-LED with built-in speakers. LG Flatron 24EB23PM-B is the cheapest 24 ”IPS monitor. Among the 27 ”, LG also took the lead with its LG Flatron 27EA53VQ-P monitor priced at € 214. Moreover, the model with the TV-tuner LG M2752D for some reason costs less. I must say right away that in this price category, the cheapest IPS matrix is ​​almost always used, and the backlighting is uneven and there are glare at the edges of the screen. But for normal home use, they are fine. More expensive monitors seem to have similar characteristics, but in fact it turns out that the matrix, and therefore the color rendition, is much better, and the backlight is much more uniform. If you choose a monitor for computer games: the cheapest option in the search results turned out to be Philips 278C4QHSN / 00 with a response of 3.5 ms, but in Russia it costs a little more than on computeruniverse.ru. Along with the price, the indicators of other characteristics gradually increase. For example, for 252 euros we are offered an AOC d2757Ph with 3D function, and for 345 euros you can take the Dell UltraSharp U2410, which has amazing contrast (400 cd / m² cd / m²), has a USB hub, and a wall mount connector. From 420 euros you can buy monitors with ultra-high resolution 2560 x 1440. Examples of such models are Iiyama ProLite XB2776QS-B1, Dell UltraSharp U2711, HP ZR2740w, Fujitsu P27T-7, LG Flatron 27EA83 schwarz, Eizo EV2736WFS grau, which, in addition, have excellent contrast, brightness, response speed. Although the relevance of the 2560 x 1440 resolution for monitors of such small sizes can be questioned. The next price category is monitors from 730 euros. This includes, for example, Apple's "branded" IPS panels - Apple Thunderbolt Display, Apple LED Cinema Display, and some monitors from NEC and LaCie.

Conclusion: An unambiguous answer to the question "Which monitor with an IPS matrix to choose?" no, it cannot be. For some, the main requirement when choosing is a TV tuner, for others - a USB hub, third buyers prefer a certain brand. But I can say for sure - it is always profitable to order monitors on computeruniverse.ru, they reach and work perfectly (do not forget that in Russia we buy panels assembled in our own country, so, whatever one may say, assembly at KU will in any case be better), all products are guaranteed for one year. Don't forget about the discount FWANUVT.

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Hello, dear habrasoobshchestvo.

After studying the materiel, I clarified some points.

I Type of imaging.

Today there are 3 types of image formation on modern televisions:

1 LCD.

The most common type of TV. Images in such TVs are obtained using polarized light, multiple light filters and controlled liquid crystals.

1.1 Types of LCD TV backlights.

Since the image that we see on an LCD TV screen is obtained as a result of the passage of polarized light from a backlight source, it is necessary to designate 2 types of backlight:
a) CCFL, aka cold cathode. A subspecies of thin fluorescent lamps located behind the matrix.
Advantages: uniformity of illumination.
Disadvantages: large thickness, power consumption, inability to locally control the backlight.
b) LED - light emitting diodes. Nowadays, TVs with cold cathode have almost completely supplanted.
Advantages: it is possible to make very thin TVs, low power consumption, the ability to locally control the backlight.

A few words must be said about the local control of the backlight and the LED backlight division. LED-backlighting is divided into 2 types: edge (aka EDGE-LED, when the LEDs are located at the edges of the matrix, their light hits the diffuser and diffuses) and carpet (Full HD LED, LED Pro). Since LCD pixels do not emit light by themselves, they need a backlight (as discussed above) that is always on. Sealed crystals still allow light to pass through, so low black levels (the lower the better) and contrast transitions are not possible in edge-lit systems. The highest-end TVs use carpet lighting (where the LEDs are located directly behind the matrix). This allows for improved backlight uniformity and the implementation of segmented backlight control, where individual diodes responsible for areas on the screen can dim the brightness depending on the scene on the screen. In fact, only 2 series have carpet lighting - Philips 9 series and Sony 9 series. LG's 9th series also has carpet lighting, but its implementation is worse than the edge of competitive solutions.

Uneven backlighting.

Due to the fact that the LEDs are located at a certain frequency (scattering and many other factors contribute their influence), in almost 100% of cases LCD TVs with LED backlighting have clouding - when areas that should remain black have a different shade of gray.
The problem is partially solved by the segmented LED backlight.

1.2 Types of matrix LCD-TVs with LED-backlight.

I will not go into details of imaging. different types matrices, and briefly describe their main advantages and disadvantages.
a) IPS(currently only produced by LG). Matrices that I think are ideal for low to mid-range TVs.
Advantages: large viewing angles.
Disadvantages: high black level (~ 0.16 nits), long response time.
Installed in TVs LG 3-9 series (that is, in fact, in all, without division by level), Philips 4, 6 series, Panasonic of various variations and many others.
b) S-PVA(manufactured by Samsung). Matrices for TVs of the classes above.
Advantages: deeper blacks (0.05-0.1 nits depending on the backlight implementation).
Installed in Samsung TVs 7-8 series, Sony 7-8 series, Philips 7-8-series and some others.
c) UV²A(produced by Sharp). In my opinion, the most perfect type matrices.
Advantages: angles are larger than S-PVA (but smaller than IPS). Deepest black level (0.02 - 0.06 nits)
Disadvantages: Sharp does not produce enough of them.
Installed in Philips 9 series TVs and Sharp top series.

2. Plasma.

There are many myths and misconceptions associated with this word. Any ignorant seller will tell you that plasma is out of date. This is due to a set of stereotypes and problems that have taken place.
The image is formed using the glow of the phosphor under the influence of UV rays.
Each plasma cell is an independent light source, so the TV does not require backlighting. Previously plasma TVs had a very large thickness and cell size, so they were very bulky and Full HD diagonals started from 50-60 ". Now the thickness of modern plasma TVs does not exceed 3-4 cm, and diagonals start from 42".

Plasma TVs do not have different types matrixes with marketing names, but there are generations of panels (the most perfect is the 15th).

Now plasma is almost superseded by LCD TVs and only 3 companies are engaged in its production: Panasonic, Samsung and LG (moreover, only the first 2 have their own developments). This is due to unprofitable production, competition from LCD TVs and their popularization. But plasma holds the first positions in large diagonals.

3. OLED.

Organic LEDs. Something in between, between the first 2 technologies. The image is formed using self-emitting diodes that glow when exposed to electric current... As in plasma, each cell is an independent light source. So far, there are only a few serial samples of such TVs at very high prices. LG and Samsung are developing in this area.

There are other types of TVs, such as laser projection TVs, but their development has already been discontinued.

Briefly about the advantages and disadvantages of each technology:

LCD:
Advantages:
- a relatively low production price, which allows manufacturers to get a fairly high profit and invest in production.
- Static imaging (no dithering) is good for displaying images and photographs.
- Great for static images and is not afraid of it.
- LCD TVs are high brightness and low power consumption
disadvantages
- High black level (from 0.02 nits in UV²A matrix with carpet backlighting to 0.2 nits in IPS).
- Long response time
- Lack of volume and and depth of the image
- Dynamic resolution without artificial tweaks 300 - 700 lines.

Plasma
Advantages
- Overall image depth. In general, when presenting high-quality content, the image on plasma differs markedly from that in LCD: it has greater depth and saturation of colors, and has a pronounced effect of volume.
- Low black level (0.008 nits on Panasonic 2012 models).
- Have a dynamic resolution without artificial tweaks of 1080 lines.
- Great for dynamic images (movies), good at revealing high quality content.
- There is virtually no response time.
- Freest viewing angles
disadvantages
- Completely unsuitable for connecting to a computer due to image retention
- Photos show worse (since gradations are obtained using dithering)
- High power consumption, not all models have high brightness.
- High production costs, low margins - it is more and more difficult for producers to stay afloat.

OLED
The most new technology image formation in televisions. Self-emitting organic light-emitting diodes (OLEDs) are used. Like plasma, they are self-emitting displays that do not require backlighting.
Currently, only a few production samples have been released at a price ten times higher than similar LCD and plasma TVs, but LG promises that in 3 years OLED TVs similar to LCD and plasma diagonals will cost 1.5 times more.
Advantages:
- low response time and high contrast, like plasma, since there are no mechanically rotating molecules and constant backlight, like in LCD.
- efficiency
- wide viewing angles.
Disadvantages:
- different pixel degradation over time (same as plasma, which results in afterimages and pixel burnout). Now they are trying to compensate for this programmatically.
- Low service time: about 10,000 hours (for example, LCD has 60,000 hours, plasma has 100,000 hours).

II Image characteristics

By choosing new tv I have come to the conclusion that some characteristics of the image can be changed, some cannot.
Measured characteristics:
- Black level (MLL, Minimum luminescence level) - the black level that the TV shows when the signal is 0. [nit]
- Brightness - the level of brightness that the TV shows when it receives a 255 signal.
These 2 characteristics are measured together when a checkerboard (ANSI method) is displayed on the TV - an alternation of black and white areas. The brightness of each area is calculated, the arithmetic average of the brightness of the black and white areas.
- Contrast. Difference between the arithmetic mean of black and white areas when black areas are taken as one.
The ANSI contrast of IPS matrices is ~ 1000: 1, S-PVA - 3500: 1, UV²А - 5000: 1, plasma - 12000: 1.
- Color accuracy (DeltaE, deviation from the standard). A signal is applied at the input, the signal at the output is measured. The greater the deviation, the less accurate color reproduction. The naked eye is believed to be unable to detect the DeltaE deviation.< 3, а нулем обозначается идеальная цветопередача.
- Viewing angles. The smaller the angle of view of the matrix, the more the color is distorted. The smallest corners are LCD S-PVA matrices. The largest are plasma panels.
- Dynamic resolution. As you know, almost all TVs have a static resolution of 1080 lines (1920x1080 pixels), but the dynamic resolution (what the TV shows when there is movement on the screen) is often different. It is for this that backlight flickering, frame interpolation and other tricks are introduced into LCD TVs.

Subjective characteristics
These include the volume of the image, which is formed by a combination of black level and color saturation, the "cinematic" image, the effect of presence.

Thank you for the attention.
If the article seems interesting, in the next part I will write about the choice of the diagonal, types of 3D, their practical difference, about image interpolation and try to debunk some myths.