Viewing angles of 178 degrees. Which is better PLS or IPS? How to Pick a Good Screen - Guide. Matrix response time

An LCD TV is a flat panel TV with an LCD display. The technology is based on the use of the physical properties of the crystal. LCD models have several advantages over plasma TVs. First of all, this is a longer service life and a high-quality picture at different viewing angles. The difficulty in choosing is only the selection of the optimal parameters.

LCD TV diagonal

When purchasing a TV, you should decide on the required diagonal. For maximum comfort, the viewing distance from the TV should be 4-5 times greater than the diagonal. Thus, with a 32-inch diagonal, the distance to the sofa should be at least 3.25 meters.

When buying a TV, you should choose several models with the same diagonal and evaluate the image quality, moving away from 3.5-4 meters.

Contrast

The reliability and clarity of the picture, the gamma of tones and halftones with all its beauty depend on the contrast of the TV, but when choosing, you should not particularly study this indicator - all modern LCD models should have a contrast ratio of at least 800: 1.

On the manufacturers' markings, there may be a contrast ratio of 12000: 1, but it is worth looking at the additional inscriptions and it becomes clear that this is dynamic contrast and it is achieved through additional adjustments. Therefore, the indicator is not worth attention.

Brightness

With a low level of brightness, the eyes will be very strained and, accordingly, tired from prolonged viewing, and in daylight it will be almost impossible to watch TV. Choose models with an average brightness of at least 450 cd / m2.

In some models, a detector is built in to determine the illumination and then automatically adjust the brightness for maximum comfort.

Viewing angle

The minimum value for the viewing angle of horizontal or vertical planes is about 160 degrees - watching TV at an 80-degree angle will reduce the contrast 10 times from viewing in the center. In modern models, the allowable angle is 176-178 degrees.

Response time

For the appearance of the image, the liquid crystals move to the extreme position from the initial position, and the time spent on the movement is called the LCD response time. Image quality and viewing comfort directly depend on response time.

With a high value of the indicator, a trail may appear on the screen when the images change quickly, or images will overlap. In modern LCD TVs, the response time should not be higher than 8 m - almost ideally 2-3 ms.

Sound

The stereo system will be one of the defining moments when choosing an LCD TV. The modern lineup is distinguished by the presence of a digital amplifier, which is used to ensure the highest possible sound purity.

TVs must have a 2-way speaker system of tweeters and four speakers. Comfortable perception is achieved with speaker sizes from 6 cm, and tweeters from 2 cm.

Traditionally, sound quality is measured by the power of the speakers in the speaker system, which is measured in watts, but this parameter does not greatly affect the quality of perception. Many manufacturers use the ignorance of buyers and indicate the power consumption, and sellers can quite accurately compare the amount of power with the sound quality. You should not pay attention to this, but you must ask about the intensity of the sound, which is measured in decibels.

You should also take into account the presence of a speaker system that creates the effect of presence and has a Surround standard.

Matrix size

Television signals used in our country are in SECAM or PAL format and correspond to a resolution of 720 by 576. When purchasing TVs with a small diagonal, this should be taken into account when choosing a model whose resolution exceeds this size.

To watch movies from video media, you should select a much higher resolution, for example, 1366 by 768, and for a digital television signal, 1920 by 1080 is more suitable.

Inputs and outputs

Most LCD TVs have a standard set of outputs and inputs - S-Video, SCART, component and composite.

The presence of HDMI and DVI is encouraged. The difference between HDMI and DVI is the ability to receive both video and audio signals in digital form. An undoubted attribute of modern equipment is support for memory cards such as SD, MS and MS pro, MMC, SM, CF, XD.

So, we have identified the main characteristics by which you need to choose LCD TVs. For standard-size apartments, the best choice would be a TV with a 32-inch diagonal or more and with a minimum contrast ratio of 800: 1, in addition, the TV should have no more than 8 ms response delay and sufficient brightness. The viewing angle should be at least 160 degrees and we pay special attention to the speaker system. It is worth remembering the sound parameter, measured in decibels, not watts. An LCD TV should have a minimum set of inputs and outputs, and support the main types of memory cards.

The manufacturer has a significant influence on the purchase of equipment. The most popular TVs are Sony and Panasonic, whose price rises by 30% only from the popularity.

South Korean models from Samsung, LG and Phillips deserve undoubted attention of consumers, which have earned confidence in the release of high-quality and not too expensive products.

Let's try to figure out how plasma differs from LCD when choosing a TV in a store, what to look for, and what you can not take into account. What screen parameters are the main ones for the TV receiver and which ones are better for this or that model.

LCD panels

What are the advantages of an LCD TV?

The liquid crystal matrix is \u200b\u200bvery thin, there is no large picture tube in this panel, so the LCD TV has the following advantages:

• Slim body and light weight, thanks to this it can be placed directly on the wall and thus save space in the apartment
• Pixels in the matrix very small and their high matrix density allows for high definition LCD TVs, which guarantees stunning picture clarity and full compatibility with high definition television. In addition, LCD TVs with a diagonal of 32 inches and larger support Full HD. This will allow you to use it even as a monitor for a computer, play computer games and still get a picture with a high degree of detail.
• Lcd tv extremely functional... You can connect to them a variety of photo, audio and video equipment, computers, game consoles and other devices without which it is difficult to imagine the life of a modern person.
• Viewing angle of 178 degrees vertically and horizontally. This will allow you to watch TV in a large company, and the image will remain bright and clear from almost any angle.
• LCD TVs consume least energy and thus save it.
• Finally, the most large selection of diagonals from the smallest to the largest. You can pick up a TV, both in the kitchen and in the living room.

To summarize all this, the advantages of an LCD TV are:

1. 1 Slim
2. 2 Light
3. 3 Compact
4. 4 High resolution
5. 5 Functionality
6. 6 Viewing angle 178 degrees
7. 7 Low power consumption
8. 8 Wide range of diagonals

Plasma

What are the advantages of plasma models over LCD. The contrast of modern plasma models is higher than that of LCDs, thanks to this, deep blacks on the screen and amazing image volume are achieved.

Studies have shown that plasma panels are less eye fatiguing and provide a more comfortable viewing experience among larger screen TVs. Unlike an LCD TV, a plasma panel retains a high picture contrast regardless of the viewing angle.

There is no such parameter as response time in a plasma panel, because it is negligible. Plasma TVs can have 18-bit processors that can handle trillions of color shades. And LCD TVs can have 10-bit processors that can handle about a billion colors. The more powerful the processor, the more natural the picture on the TV screen. A large supply of shades allows the most realistic color reproduction of both brightly lit objects and those in the shadows, while maintaining the volume and depth of the image. Although a lot here depends on the ability of the human eye to distinguish these shades, and it turns out that this advantage does not play a decisive role.

Despite some stagnation, the monitor market is gradually undergoing changes. Ultra HD resolution, also known as 4K, is becoming a serious trend.

"Ultra clear" monitors are especially popular among users working with graphics and video editing. But those users who like space on the desktop are also eyeing ultra-high-resolution displays. MacDigger brings you three of the best 4K monitors for your Mac.

Dell P2715Q

The diagonal panel of the monitor Dell P2715Q is 27 inches, and the resolution is 3840 × 2160 pixels. The company has adopted an IPS matrix that provides horizontal and vertical viewing angles up to 178 degrees.

The model has a brightness of 350 cd / m2 and a response time of 9 ms. Typical and dynamic contrast ratios are 1000: 1 and 2000000: 1.

The manufacturer positions the model as tools for professionals: the monitor covers 99% of the sRGB space, and the declared value is Delta E3.

The stand allows for adjustment of the display's tilt and swivel angle, as well as its height in relation to the table top. You can also change the screen orientation from landscape to portrait if needed.

Panels are equipped with digital interfaces Mini DisplayPort, HDMI (MHL) and allow the use of an integrated four-port USB 3.0 hub. With a DisplayPort connector, multiple monitors can be daisy-chained together.

The average price of Dell P2715Q in Russia is 45,200 rubles.

LG 27UD88

Monitor LG 27UD88 - the newer model in the ranking, it is presented at CES 2016. The device is also equipped with a 27-inch IPS matrix, the screen resolution is 3840 x 2160 pixels.

The model provides coverage of 99% of the sRGB color space, the manufacturer's declared brightness is 350 cd / m2, the pixel response time is 5 ms (Gray-to-Gray), the maximum screen refresh rate is 60 Hz.

Feature of LG 27UD88 is the presence of a USB-C connector, which will be appreciated by owners of 12-inch MacBooks. The interface can be used for both signal source and power supply. However, in addition to it, other video inputs are provided: two HDMI 2.0, one DisplayPort 1.2.

A USB 3.0 hub with two ports is provided for connecting peripherals and charging mobile devices.

The average price of Dell P2715Q in Russia is 43 400 rubles.

ASUS PB287Q

ASUS PB287Q is positioned by the manufacturer as a budget solution, while its diagonal is one inch larger than that of the previous two models. The device is equipped with a 28-inch matte screen, created on the basis of a fast TN-matrix with an aspect ratio of 16: 9, a resolution of 3840 x 2160 pixels.

ASUS PB287Q's response time is 1ms (Gray-to-Gray), which is suitable for high-quality dynamic games. The stand allows you to adjust the position of the screen in four directions, including turning it 90 degrees, and the built-in speakers save space on your desktop without cluttering it with external acoustics.

I must say right away that the Asus PB287Q should not be chosen by professionals. In fact, the feature set and the low price point are more intended to appeal to enthusiasts, and the monitor has attractive features such as VividPixel, QuickFit and GamePlus. So along with the fast response time and low latency of TN panels, this model is best suited for gamers.

The ASUS PB287Q LCD Monitor can be wall-hung using the optional VESA mount if needed.

The average price of ASUS PB287Q in Russia is 41,200 rubles.

When choosing a monitor, many users are faced with the question: which is better than PLS or IPS.

These two technologies have existed for a long time and both show themselves quite well.

If you look at various articles on the Internet, then they write either that everyone must decide for himself what is better, or they do not give an answer to the question at all.

Actually, there is no point in these articles at all. After all, they do not help users in any way.

Therefore, we will analyze in which cases it is better to choose PLS or IPS and give those tips that will help you make the right choice. Let's start with theory.

What is IPS

It should be said right away that at the moment it is the two options under consideration that are the leaders in the technology market.

And not every specialist will be able to say which technology is better and what advantages each of them has.

So, the word IPS itself stands for In-Plane-Switching (literally "intra-site switching").

And also this abbreviation stands for Super Fine TFT ("super thin TFT"). TFT, in turn, stands for Thin Film Transistor ("Thin Film Transistor").

To put it simply, TFT is a technology for displaying a picture on, which is based on an active matrix.

Hard enough.

Nothing. Let's figure it out now!

So, in TFT technology, the control of liquid crystal molecules in occurs with the help of thin-film transistors, which means "active matrix".

IPS is exactly the same thing, only the electrodes in monitors with this technology are on the same plane with the liquid crystal molecules, which are parallel to the plane.

All this can be clearly seen in Figure 1. There, in fact, displays with both technologies are shown.

First there is a vertical filter, then transparent electrodes, after them liquid crystal molecules (blue sticks, they are of most interest to us), then a horizontal filter, a color filter and the screen itself.

Figure: # 1. TFT and IPS screens

The difference between these technologies lies only in the fact that the LCD molecules in the TFT are located not in parallel, but in the IPS - in parallel.

Thanks to this, they can quickly change the viewing angle (specifically, here it is 178 degrees) and give a better picture (in IPS).

And also due to this solution, the brightness and contrast of the picture on the screen have significantly increased.

Now it is clear?

If not, write your questions in the comments. We will definitely answer them.

IPS technology was created in 1996. Among its advantages, it is worth noting the absence of the so-called "excitement", that is, the wrong reaction to touch.

It also has excellent color reproduction. Quite a lot of companies produce monitors using this technology, including NEC, Dell, Chimei and even.

What is pls

For a very long time, the manufacturer did not say anything at all about his brainchild, and many experts put forward various assumptions regarding the characteristics of the PLS.

Actually, even now this technology is covered with a lot of secrets. But we will still find the truth!

PLS was released in 2010 as an alternative to the aforementioned IPS.

This abbreviation stands for Plane To Line Switching (that is, "switching between lines").

Recall that IPS is In-Plane-Switching, that is, "switching between lines". This refers to switching in the plane.

And above we said that in this technology, liquid crystal molecules quickly become flat and due to this, a better viewing angle and other characteristics are achieved.

So, in PLS everything happens exactly the same, but faster. Figure 2 shows all this clearly.

Figure: # 2. PLS and IPS work

In this figure, the screen itself is located at the top, then crystals, that is, the same LCD molecules that in figure 1 were indicated by blue sticks.

The electrode is shown below. On the left in both cases their location is shown in the off state (when the crystals do not move), and on the right - in the on state.

The principle of operation is the same - when the crystals begin to work, they begin to move, while initially they are located parallel to each other.

But, as we see in Figure 2, these crystals quickly acquire the desired shape - the one that is necessary for the maximum.

For a certain period of time, the molecules in the IPS monitor do not become perpendicular, but in the PLS they become.

That is, in both technologies everything is the same, but in PLS everything happens faster.

Hence the intermediate conclusion - PLS works faster and, in theory, this particular technology could be considered the best in our comparison.

But it is too early to draw final conclusions.

Interesting: Samsung filed a lawsuit against LG a few years ago. It argued that the AH-IPS technology used by LG is a modification of the PLS technology. From this we can conclude that PLS is a kind of IPS and the developer himself recognized this. Actually, this was confirmed and we are a little higher.

Which is better PLS or IPS? How to Pick a Good Screen - Guide

What if I don't understand anything?

In this case, the video at the end of this article will help you. It clearly shows the TFT and IPS monitors in a section.

You will be able to see how it all works and understand that PLS is doing exactly the same, but faster than in IPS.

Now we can proceed to further comparison of technologies.

Expert opinions

On some sites you can find information about an independent study by PLS and IPS.

Experts compared these technologies under a microscope. It is written that in the end they did not find any differences.

Other experts write that it is better to buy PLS, but they do not really explain why.

Among all the experts' statements, several main points can be distinguished that can be observed in almost all opinions.

These moments are as follows:

• Monitors with PLS matrices are the most expensive on the market. The cheapest option is TN, but such monitors are inferior in all characteristics to both IPS and PLS. So, most experts agree that this is very justified, because the picture is better displayed on PLS;
• PLS monitors are best suited for all kinds of design and engineering tasks. And also this technique will perfectly cope with the work of professional photographers. Again, it can be inferred from this that PLS does a better job of rendering colors and providing sufficient image clarity;
• According to experts, PLS monitors are virtually free of problems such as glare and flickering. They came to this conclusion during the tests;
• Ophthalmologists say the PLS will be much better perceived by the eyes. Moreover, it will be much easier for the eyes to look at PLS all day than at IPS.

In general, from all this, we again draw the conclusion that we have already drawn earlier. PLS is slightly better than IPS. And this opinion is confirmed by the majority of experts.

Which is better PLS or IPS? How to Pick a Good Screen - Guide

Which is better PLS or IPS? How to Pick a Good Screen - Guide

Our comparison

And now let's move on to the final comparison, which will answer the question posed at the very beginning.

The same experts identify a number of characteristics by which different ones need to be compared.

We are talking about such indicators as light sensitivity, response speed (meaning the transition from gray to gray), quality (pixel density without losing other characteristics) and saturation.

We will use them to evaluate two technologies.

Table 1. Comparison of IPS and PLS by some characteristics

Other characteristics, including saturation and quality, are subjective and depend on each individual.

But even from the above indicators, it can be seen that PLS has slightly higher characteristics.

Thus, we again confirm the conclusion that this technology performs better than IPS.

Figure: Number 3. First comparison of monitors with IPS and PLS matrices.

There is a single "popular" criterion, which allows you to accurately determine which is better - PLS or IPS.

This criterion is called "by eye". In practice, this means that you just need to take and look at two adjacent monitors and visually determine where the picture is better.

Therefore, we will give several similar images, and everyone will be able to see for himself where the image visually looks better.

Figure: No. 4. The second comparison of monitors with IPS and PLS matrices.

Figure: No. 5. The third comparison of monitors with IPS and PLS matrices.

Figure: No. 6. The fourth comparison of monitors with IPS and PLS matrices.

Figure: No. 7. The fifth comparison of monitors with IPS (left) and PLS (right) matrices.

You can visually see that on all PLS samples the picture looks much better, more saturated, brighter, and so on.

We mentioned above that TN is the most inexpensive technology today and monitors using it, respectively, are also cheaper than others.

After them, the price is followed by IPS, and then PLS. But, as you can see, all this is not at all surprising, because the picture really looks much better.

Other characteristics are also higher in this case. Many experts advise buying with PLS matrices and Full HD resolution.

Then the image will really look just fine!

It is impossible to say for sure whether this combination is the best on the market today, but one of the best for sure.

By the way, for comparison, you can see how IPS and TN look at a sharp viewing angle.

Figure: No. 8. Comparison of monitors with IPS (left) and TN (right) matrices.

It is worth saying that Samsung created two technologies at once, which are used in monitors and / and were able to significantly bypass IPS.

We are talking about Super AMOLED screens, which are on the mobile devices of this company.

Interestingly, the Super AMOLED resolution is usually less than IPS, but the picture is richer and brighter.

But in the case of the PLS above, practically everything that can be, including the resolution.

The general conclusion is that PLS is better than IPS.

Among other things, PLS has the following advantages:

• the ability to transmit a very wide range of shades (in addition to primary colors);
• the ability to support the full range of sRGB;
• lower energy consumption;
• viewing angles allow several people to comfortably see the picture at once;
• all kinds of distortions are absolutely excluded.

In general, IPS monitors are perfect for solving common household tasks, for example, watching movies and working in office programs.

But if you want to see a really rich and high-quality image, buy equipment with PLS.

This is especially true in cases where you will need to work with and design / engineering programs.

Their price, of course, will be higher, but it's worth it!

Which is better PLS or IPS? How to Pick a Good Screen - Guide

What is amoled, super amoled, Lcd, Tft, Tft ips? Do not you know? Look!

RUB 16 660

Monitor Samsung C27H800FCI black

The viewing angle is vertical 178 degrees. LCD matrix type - PVA. With LED backlight. With USB ports. With HDMI interface. The resolution is 1920x1080. Screen format - widescreen 16: 9. . With anti-reflective coating. Diagonal 27 inches. With DisplayPort input. The response time is 5 ms. Contrast - 3000. Weight: 6.0 kg. Dimensions 614x540x281 mm.