Which display type is better ips or tft. AMOLED, IPS or TN? Technology comparison

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As is usually the case with abbreviations used to denote specifics and technical characteristics, there is confusion and substitution of concepts in relation to TFT and IPS. Largely thanks to unqualified descriptions electronic devices In catalogues, consumers pose the question of choice initially incorrectly. So, the IPS matrix is a type of TFT matrix, so it is impossible to compare these two categories with each other. However, for Russian consumers, the abbreviation TFT often means TN-TFT technology, and in this case a choice can already be made. So speaking of differences TFT screens and IPS, we will mean TFT screens made using TN and IPS technologies.

TN-TFT- technology for making a matrix of a liquid crystal (thin-film transistor) screen, when the crystals, in the absence of voltage, are rotated to each other at an angle of 90 degrees in the horizontal plane between two plates. The crystals are arranged in a spiral, and as a result, when the maximum voltage is applied, the crystals rotate in such a way that black pixels are formed when light passes through them. Without tension - white.

IPS- technology for making a matrix of a liquid crystal (thin-film transistor) screen, when the crystals are located parallel to each other along a single plane of the screen, and not spirally. In the absence of voltage, the liquid crystal molecules do not rotate.

In practice, the most important difference between an IPS matrix and a TN-TFT matrix is the increased level of contrast due to almost perfect black color display. The picture turns out clearer.

The color rendering quality of TN-TFT matrices leaves much to be desired. Each pixel in this case may have its own shade, different from the others, resulting in distorted colors. IPS already treats images much more carefully.

On the left is a tablet with a TN-TFT matrix. On the right is a tablet with an IPS matrix

The response speed of TN-TFT is slightly higher than that of other matrices. IPS takes time to rotate the entire parallel die array. Thus, when performing tasks where drawing speed is important, it is much more profitable to use TN matrices. On the other hand, in everyday use a person does not notice the difference in response time.

Monitors and displays based on IPS matrices are much more energy-intensive. This is due high level voltage required to rotate the crystal array. Therefore, the tasks of energy saving in mobile and portable devices TN-TFT technology is more responsible.

IPS-based screens have wide viewing angles, meaning they do not distort or invert colors when viewed at an angle. Unlike TN, IPS viewing angles are 178 degrees both vertically and horizontally.

Another difference that is important for the end consumer is the price. TN-TFT today is the cheapest and most widespread version of the matrix, so it is used in budget models electronics.

Conclusions website

IPS screens are less responsive and have longer response times.
IPS screens provide better color reproduction and contrast.
The viewing angles of IPS screens are significantly greater.
IPS screens require more power.
IPS screens are more expensive.

Currently, for the production of consumer monitors, the two most basic, so to speak, root, matrix manufacturing technologies are used - LCD and LED.

LCD is an abbreviation for the phrase “Liquid Crystal Display”, which translated into understandable Russian means liquid crystal display, or LCD.
LED stands for “Light Emitting Diode”, which in our language is read as a light-emitting diode, or simply an LED.

All other types are derived from these two pillars of display construction and are modified, modernized and improved versions of their predecessors.

Well, let’s now consider the evolutionary process that displays went through when they came to serve humanity.

Types of monitor matrices, their characteristics, similarities and differences

Let's start with the LCD screen that is most familiar to us. It includes:

The matrix, which at first was a sandwich of glass plates interspersed with a film of liquid crystals. Later, with the development of technology, thin sheets of plastic began to be used instead of glass.
Light source.
Connecting wires.
Case with metal frame, which gives rigidity to the product

The point on the screen responsible for forming the image is called pixel, and consists of:

Transparent electrodes in the amount of two pieces.
Layers of molecules of the active substance between the electrodes (this is the LC).
Polarizers whose optical axes are perpendicular to each other (depending on the design).

If there were no LC between the filters, then the light from the source passing through the first filter and being polarized in one direction would be completely delayed by the second, due to the fact that its optical axis is perpendicular to the axis of the first filter. Therefore, no matter how much we shine on one side of the matrix, on the other side it remains black.

The surface of the electrodes touching the LC is processed in such a way as to create a certain order of molecules in space. In other words, their orientation, which tends to change depending on the voltage electric current, applied to the electrodes. Next, technological differences begin depending on the type of matrix.

Tn matrix stands for “Twisted Nematic”, which means “Twisting thread-like”. The initial arrangement of the molecule is in the form of a quarter-reverse helix. That is, light from the first filter is refracted so that, passing along the crystal, it hits the second filter in accordance with its optical axis. Consequently, in a quiet state such a cell is always transparent.

By applying voltage to the electrodes, you can change the angle of rotation of the crystal until it is completely straightened, at which light passes through the crystal without refraction. And since it was already polarized by the first filter, the second one will completely delay it, and the cell will be black. Changing the voltage changes the angle of rotation and, accordingly, the degree of transparency.

Advantages

Flaws– small viewing angles, low contrast, poor color rendering, inertia, power consumption

TN+Film matrix

It differs from simple TN by the presence of a special layer designed to increase the viewing angle in degrees. In practice, a value of 150 degrees horizontally is achieved for best models. Used in the vast majority of budget-level TVs and monitors.

Advantages– low response time, low cost.

Flaws– viewing angles are very small, low contrast, poor color rendering, inertia.

TFT matrix

Abbreviation for “Think Film Transistor” and translates as “thin film transistor”. The name TN-TFT would be more correct, since it is not a type of matrix, but a manufacturing technology and the difference from pure TN is only in the method of controlling pixels. Here it is implemented using microscopic field effect transistors, and therefore such screens belong to the class of active LCDs. That is, it is not a type of matrix, but a way of managing it.

IPS or SFT matrix

Yes, and this is also a descendant of that very ancient LCD plate. In essence, it is a more developed and modernized TFT, as it is called Super Fine TFT (very good TFT). Viewing angle increased the best products reaches 178 degrees, and the color gamut is almost identical to natural

Advantages– viewing angles, color rendition.

Flaws– the price is too high compared to TN, the response time is rarely below 16 ms.

Types of IPS matrix:

H-IPS – increases image contrast and reduces response time.
AS-IPS - the main quality is to increase contrast.
H-IPS A-TW - H-IPS with True White technology that improves White color and its shades.
AFFS - increasing the electric field strength for large viewing angles and brightness.

PLS matrix

Modified, in order to reduce costs and optimize response time (up to 5 milliseconds), the IPS version. Developed by the Samsung concern and is an analogue of H-IPS, AN-IPS, which are patented by other electronics developers.

You can find out more about the PLS matrix in our article:

VA, MVA and PVA matrices

This is also a manufacturing technology, and not a separate type of screen.

VA matrix– abbreviation for “Vertical Alignment”, translated - vertical alignment. Unlike TN matrices, VA does not transmit light when turned off.
MVA matrix. Modified VA. The goal of the optimization was to increase viewing angles. The response time was reduced thanks to the use of OverDrive technology.
PVA matrix. Not a separate species. It is an MVA patented by Samsung under its own name.

There is also an even greater number of various improvements and improvements that the average user is unlikely to encounter in practice - the maximum that the manufacturer will indicate on the box is the main type of screen and that’s all.

In parallel with LCD, LED technology developed. Full-fledged, purebred LED screens are made from discrete LEDs either in a matrix or cluster method and in stores household appliances do not meet.

The reason for the lack of full-weight LEDs on sale lies in their large dimensions, low resolution, and coarse grain. The scope of such devices is banners, street TV, media facades, and ticker tape devices.

Attention! Don't confuse a marketing name like "LED monitor" with a real LED display. Most often, this name will hide a regular LCD of the TN+Film type, but the backlight will be made using an LED lamp, not a fluorescent one. That’s all that such a monitor will have from LED technology – only the backlight.

OLED displays

OLED displays are a separate segment, representing one of the most promising areas:

Advantages

low weight and overall dimensions;
low appetite for electricity;
unlimited geometric shapes;
no need for illumination with a special lamp;
viewing angles up to 180 degrees;
instant matrix response;
contrast exceeds all known alternative technologies;
the ability to create flexible screens;
temperature range is wider than other screens.

Flaws

short service life of diodes of a certain color;
the impossibility of creating durable full-color displays;
very high price, even compared to IPS.

For reference. Perhaps amateurs also read us mobile devices, so let’s also touch on the portable technology sector:
AMOLED (Active Matrix Organic Light-Emitting Diode) – combination of LED and TFT
Super AMOLED – Well, here, we think everything is clear!

Based on the data provided, it follows that there are two types of monitor matrices - liquid crystal and LED. Their combinations and variations are also possible.

You should know that the matrices are divided by ISO 13406-2 and GOST R 52324-2005 into four classes, about which we will only say that the first class provides complete absence dead pixels, and the fourth class allows up to 262 defects per million points.

How to find out what matrix is in the monitor?

There are 3 ways to verify the matrix type of your screen:

a) If the packaging box has been preserved and technical documentation, then you can probably see a table with the characteristics of the device, among which the information of interest will be indicated.

b) Knowing the model and name, you can use the services of the manufacturer’s online resource.

If you look at the color picture of a TN monitor from different angles from the side, top, bottom, you will see color distortions (up to inversion), fading, yellowness white background. It is impossible to achieve a completely black color - it will be deep gray, but not black.
IPS can be easily identified by a black picture, which acquires a purple tint when the gaze deviates from the perpendicular axis.
If the listed manifestations are absent, then this is either a more modern version of IPS or OLED.
OLED is distinguished from all others by the absence of a backlight, so the black color on such a matrix represents a completely de-energized pixel. And even the most best IPS black color glows in the dark due to BackLight.

Let's find out what she is like - best matrix for the monitor.

Which matrix is better, how do they affect vision?

So, the choice in stores is limited to three technologies: TN, IPS, OLED.

It has low cost, has acceptable time delays and constantly improves image quality. But due to the low quality of the final image, it can only be recommended for home use - sometimes to watch a movie, sometimes to play with a toy and from time to time to work with texts. As you remember, the response time of the best models reaches 4 ms. Disadvantages such as poor contrast and unnatural colors cause increased eye fatigue.

IPS This, of course, is a completely different matter! Bright, rich and natural colors of the transmitted image will provide excellent working comfort. Recommended for printing work, designers or those who are willing to pay a tidy sum for convenience. Well, playing will not be very convenient due to the high response - not all copies can boast even 16 ms. Accordingly – calm, thoughtful work – YES. It's cool to watch a movie - YES! Dynamic shooters - NO! But the eyes don't get tired.

OLED. Oh, a dream! Such a monitor can be afforded either by fairly wealthy people or by those who care about the condition of their vision. If it were not for the price, we could recommend it to everyone - the characteristics of these displays have the advantages of all other technological solutions. In our opinion, there are no disadvantages here, except for the cost. But there is hope - the technology is improving and, accordingly, becoming cheaper so that a natural reduction in production costs is expected, which will make them more affordable.

conclusions

Today, the best matrix for a monitor is, of course, Ips/Oled, made on the principle of organic light-emitting diodes, and they are quite actively used in the field of portable technology - mobile phones, tablets and others.

But, if there are no excess financial resources, then you should opt for more simple models, but without fail with LED lamps backlight. The LED lamp has a longer lifespan, stable luminous flux, a wide range of backlight control and is very economical in terms of energy consumption.

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

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

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

Actually, these articles make no sense at all. After all, they do not help users in any way.

Therefore, we will look at in what cases it is better to choose PLS or IPS and give advice that will help you do right choice. Let's start with the theory.

What is IPS

It’s worth saying right away that this moment It is the two options under consideration that are 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 “in-site switching”).

This abbreviation also stands for Super Fine TFT (“super thin TFT”). TFT, in turn, stands for Thin Film Transistor.

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

Hard enough.

Nothing. Let's figure it out now!

So, in TFT technology The molecules of liquid crystals are controlled using thin-film transistors; this is what “active matrix” means.

IPS is exactly the same, only the electrodes in monitors with this technology are on the same plane with 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 interest us most), then horizontal filter, color filter and the screen itself.

Rice. No. 1. TFT and IPS screens

The only difference between these technologies is that the LC molecules in TFT are not located in parallel, but in IPS they are in parallel.

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

And also due to this solution, the brightness and contrast of the image on the screen has 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, an incorrect reaction to touch.

It also has excellent color rendition. 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 its brainchild, and many experts put forward various assumptions regarding the characteristics of PLS.

Actually, even now this technology is shrouded in 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”).

Let us remember that IPS is In-Plane-Switching, that is, “switching between lines.” This refers to switching in a 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.

Rice. No. 2. PLS and IPS work

In this figure, at the top there is the screen itself, then the crystals, that is, the same liquid crystal molecules that were indicated by blue sticks in figure No. 1.

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

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 No. 2, these crystals quickly acquire the desired shape - the one that is necessary for the maximum.

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

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.

This is interesting: Samsung Company filed a lawsuit against LG several years ago. It claimed that the AH-IPS technology used by LG is a modification of PLS technology. From this we can conclude that PLS is a type of IPS, and the developer himself admitted this. Actually, this was confirmed and we are a little higher.

Which is better PLS or IPS? How to choose 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 a cross-section of TFT and IPS monitors.

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

Now we can move on to further comparison of technologies.

Expert opinions

On some sites you can find information about an independent study of 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 still better to buy PLS, but do not really explain why.

Among all the statements of experts, there are several main points that can be observed in almost all opinions.

These points 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 respects to both IPS and PLS. So, most experts agree that this is very justified, because the picture is better displayed on PLS;
Monitors with a PLS matrix are best suited for performing all kinds of design and engineering tasks. This technique will also cope perfectly with the work of professional photographers. Again, from this we can conclude that PLS does a better job of rendering colors and providing sufficient image clarity;
According to experts, PLS monitors practically free from problems such as glare and flicker. They came to this conclusion during testing;
Ophthalmologists say that PLS will be much better perceived by the eyes. Moreover, your eyes will find it much easier to look at PLS all day than IPS.

In general, from all this we again draw the same conclusion that we already made earlier. PLS is a little better than IPS. And this opinion is confirmed by most experts.

Which is better PLS or IPS? How to choose a good screen - guide

Our comparison

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 indicators such 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 the two technologies.

Table 1. IPS comparison and pls for some specifications

Other characteristics, including saturation and quality, are subjective and vary from person to person. specific person.

But from the above indicators it is clear that PLS has slightly higher characteristics.

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

Rice. No. 3. The first comparison of monitors with IPS and PLS matrices.

There is a single “popular” criterion that 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 the two side by side standing monitor and visually determine where the picture is better.

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

Rice. No. 4. Second comparison of monitors with IPS and PLS matrices.

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

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

Rice. No. 7. Fifth comparison of monitors with IPS (left) and PLS (right) matrices.

It is visually clear 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, accordingly, also cost less than others.

After them in price come IPS, and then PLS. But, as we see, all this is not at all surprising, because the picture really looks much better.

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

Then the image will really look just great!

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

By the way, for comparison you can see what IPS and TN look like from an acute viewing angle.

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

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

It's about Super AMOLED screens, which stand on mobile devices oh this company.

Interestingly, Super AMOLED resolution is usually lower than IPS, but the picture is more saturated and bright.

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

The general conclusion can be drawn that PLS is better than IPS.

Among other things, PLS has the following advantages:

the ability to convey a very wide range of shades (in addition to primary colors);
ability to support the entire sRGB range;
lower energy consumption;
viewing angles allow several people to see the picture comfortably 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 something really rich and high quality image, buy equipment with PLS.

This is especially true when you need to work with design/design programs.

Of course, their price will be higher, but it’s worth it!

Which is better PLS or IPS? How to choose a good screen - guide

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

Which is better PLS or IPS? How to choose a good screen - guide

4.7 (93.33%) 3 votes

IPS or TFT - which is better to choose? More recently, I was faced with the need to give a person a reasonable answer to this question when buying a tablet. Knowing for sure what was already on everyone’s lips, I was ready to immediately give an answer. But still, I decided to study this topic a little in order to support what was said with compelling arguments. I had to dig through the information a little and even... To understand the situation, I’ll say right away that we were talking about buying a reliable used tablet. As it turned out, this also contributes to the final decision regarding what is better - IPS or TFT matrix. Even if you need to buy new tablet or smartphone, the information below will also be relevant and useful. So, let's begin our short review.

A little about the technologies used to produce IPS screens

Although most modern displays has liquid crystals, in each case slightly different technologies may be used, leading to differences in the characteristics of the final product. Terminology used throughout may vary. Therefore, in order not to be misled regarding TFT or IPS monitors, the following should be noted.

First and foremost, let's separate the weeds from the chaff: IPS technology is no different than TFT. It is TFT – or rather, one of its implementations. On the other hand, "our" person called TFT understands TFT-TN.

Thus, the comparison is made between two representatives of TFT matrices: IPS or TN. Regarding the technologies used:

TFT (we understand that we are talking about TFT-TN). Liquid crystal display (thin film transistors). The crystals are arranged spirally in the matrix body between two plates. The formation of an image occurs due to the rotation of the crystal molecules. If there is no voltage, their horizontal rotation angle is 90 degrees, and they are white. At the maximum applied voltage, the rotation is carried out at an angle at which, when light passes through the crystal, it turns black. So, depending on the voltage applied to the crystals, they change their color.
IPS (actually TFT-IPS). The same crystals, only their location is parallel to each other. When there is no voltage, the crystal molecules are not rotated.

Now let's move on to the main question: ? Which display should you choose?

IPS or TFT - which is better? Differences between screens in image quality

The key features of any monitor, display, IPS or TFT screen are, first of all, determined by the quality of the picture display. In turn, quality can be broken down into indicators such as contrast and viewing angle.

When we're talking about about the IPS matrix, it significantly outperforms TFT in terms of image contrast. This is achieved by almost perfect reproduction of black crystals. Namely, the display of black directly affects such an indicator as contrast. In TFT displays, individual pixels (when displaying black and other colors) may have a slightly “own” tint, which leads to distortions in the color of the image.

An important factor influencing the choice of mobile device screen is the viewing angle. This indicator is especially important if the device is to be used together with others, for example, showing a photo of a recent trip to the sea. With a viewing angle of 178 degrees from any side, the IPS matrix undoubtedly wins, allowing several of your friends or colleagues to enjoy the image without distortion. This is also important to consider when purchasing a particular device.

Reaction speed of IPS and TFT display

The apparent advantage of a TFT display over an IPS screen is high speed response. Here he has no competitors. At the same time, the IPS matrix needs more time to rotate an array of crystals that are located in parallel.

This fact leads to the obvious conclusion that in devices whose purpose is critical to display speed, it is still better to use TFT. On the other hand, when it comes to everyday use (as a tool for studying, communicating via the Internet and other tasks), this difference almost invisible to the human eye, and is detected only through the use of special technical tests. Therefore, when choosing a screen type, in most cases, preference should be given to an IPS matrix.

Which matrix needs more power - IPS or TFT?

There are other differences that we continue to list. How is the energy consumed in batteries of screens made using different technologies? There are obvious differences. The energy consumption of IPS is actually higher. Not only more time, but also more voltage is required to rotate the crystals of this type of matrix. The logical conclusion is increased load to the battery. Therefore, when purchasing used devices, when it is obvious that the battery is no longer new, this fact must be carefully weighed. If it is purchased new phone, tablet or smartphone, and its use requires a long stay out of reach of the mains, it is better to focus on high-quality TFT matrices.

Cost of devices with different types of displays

Price IPS screens always higher. You can pay attention to this by filtering out devices with this type of matrix in any online store. It should be said that IPS is used in almost all modern devices, gradually replacing TFT. At the same time, if you only need the equipment to make a call, what's the point of paying extra for a screen whose benefits won't be used? Moreover, if this increases the overall energy consumption of a smartphone or tablet.

TFT or IPS - which is better? Which matrix should I choose?

So, if you need a modern, high-quality tablet with which you can not only work, but also comfortably show high-quality photos to friends, definitely choose only devices with an IPS matrix. When paying attention to manufacturers' markings, do not forget that TFT includes both TN and IPS matrices. But this is not all of their types. Knowing which of these two types of matrices is better - TFT or IPS, and wanting to buy a tablet, smartphone or phone, contact any of the trusted online stores (Rozetka, Eldorado, Citrus and others) that provide a full range of these products, with the ability to filter according to the most significant parameters.

By the way, a person who bought a tablet with an IPS matrix, which was delivered to him from Poland, was pleased with it and constantly admires the comfort of using the device even on a sunny day. Facts, they say, are stubborn things.

And again there is a confusion of concepts. If you are trying to determine the difference between monitors or televisions that someone called TFT and LCD, then you have been misled. Try to find the differences between a bus and Ikarus? Between the dog and the neighbor's Bug? Between fruit and apple? That's right, the exercise is useless, because both objects are both at the same time. So it is with screen matrix technologies: LCD is the general name for a class of displays, which includes TFT.

Definition

TFT matrix- active matrix LCD display, made using thin-film transistors.

LCD- a flat display (and a device based on it) based on liquid crystals.

Comparison

LCD displays are not an invention of our century. Screens electronic watch, calculators, instruments, players are also liquid crystal, although they differ significantly from the smartphone or TV screens we are used to. True, at first LCDs were monochrome, but with the development of technology they blossomed in the RGB range. TFT is also a type of LCD display, the production of which is based on an active matrix based on thin-film transistors. If you compare it with the earlier version of LCD, the passive matrix, it becomes obvious that the color quality and response time of TFT is much higher. Twisted polymer is used as crystals in passive matrices. But the energy consumption and cost of passive matrices, called STN, can please anyone. However, monochrome screens in this regard, they will generally look like prize money, but there are unlikely to be many people willing to watch such TVs.

The operating principle of TFT is that each of the thin film transistors controls a single pixel. For each pixel there are three transistors corresponding to the main RGB colors(red, green and blue). The intensity of the light flux depends on the polarization, polarization depends on the application of an electric field to the liquid crystals. TFT involves increasing the level of speed, contrast and clarity of the resulting image.

It is worth noting the disadvantages of TFT matrices, which were eliminated in other technologies. The image quality directly depends on the external lighting of the screen. Transistors at any of the pixels can fail, which leads to the appearance of “dead spots”, or dead pixels. No screen can be protected from this. In addition, TFT matrices are largely energy-intensive, so their use as displays for mobile electronics makes one of the most important properties— autonomy.

Thin-film transistors, which formed the basis for the operation of liquid crystal matrices, today have practically fled to a different camp: OLED screens use them to control their active matrices. There are no longer liquid crystals here, but organic compounds.

Conclusions website

LCD is a type of screen matrix based on liquid crystals.
TFT is a type of active LCD matrix.
TFT makes it different from others LCD technologies use of thin film transistors.
TFT matrices are economical, provide high-quality images, but are energy-intensive.

Which display type is better ips or tft. AMOLED, IPS or TN? Technology comparison

Conclusions website