Diagonal of TVs: features of choosing a parameter for comfortable viewing

Previously, shopping centers did not have a large assortment of TVs. The buyer rarely thought about sizing, as they chose what was available. Modern manufacturers have filled the market with various models, primarily differing in screen sizes. The diagonal of TVs is considered the most important indicator that an ordinary buyer pays attention to. The main thing is to choose the optimal size that matches the parameters of the room.

The diagonal of the TV is the most important parameter that the buyer pays attention to.

What is TV diagonal: table in cm and inches

The diagonal size of the TV is always indicated in its name, for example, if you take the Samsung model UE-65HU8700, the number 65 will indicate the screen size. The same with other manufacturers: usually the first 2 digits of the model are the designation of the size of the diagonal, which is measured in inches. Sometimes, additionally on the package, there is also a size in centimeters, which is equivalent to parameters in inches. To convert an inch value to centimeters, you need to multiply this number by 2.54. For example, a 19-inch TV has a screen size of 48.26 cm.

Manufacturers indicate the size of the diagonal of the TV in the model name, as a rule, these are the first two digits

Interesting information! The first color TV was 7 inches, which is only 17.78 cm. The largest screen to date is 262 inches, which was developed by C Seed in 2017. If you translate this into meters, you get more than 6.5 m.

The size of the TV has nothing to do with vertical or horizontal parameters, because the diagonal is the distance between two opposite corners of the screen: from the upper left to the lower right corner. Another important point to consider is that the overall size of the TV itself will always be larger than the diagonal. This is because this figure does not take into account the bezel surrounding the screen, which is usually a few centimeters larger.

Modern flat models have such a thin frame that its size has practically no effect on the total diagonal of the device.Before measuring the diagonal of the TV, you need to arm yourself with a centimeter or tape measure, attach one edge to any upper corner and stretch the meter to the opposite lower corner. Thus, it will turn out to find out the size of the diagonal of the TV in cm.To convert the indicator to inches, the resulting number should be divided by 2.54.

Below is a table of TV sizes in inches and centimeters:

How to choose a device depending on the screen format: a table of TV diagonals in cm and inches

You can find out the diagonal of the TV (as well as its width and height) in the description of the equipment on Internet sites or in shopping centers. If the value of the diagonal is mainly used right away in the name of the model, then you will have to look for information about the width and height of the screen. These parameters are also important, because the size of the image transmitted to the screen depends on the aspect ratio. Initially, TVs were produced with a screen ratio of 1: 1, which was associated with outdated video formats. Then the 5: 4 format was developed, which became the closest to the latest sizes.

Most modern 20-inch TVs, like other sized models, have an aspect ratio of 4: 3 when the screen is close to square. The 16: 9 aspect ratio is more typical for larger TVs: 50 inches, 42, 60 or 78. In this case, the screen is more rectangular.

Table of TV diagonals in cm and inches, as well as the values ​​of width and height, provided that you purchase a screen with an aspect ratio of 16: 9:

Selecting the TV size according to your screen type

Choosing the diagonal size of your TV is an extremely important purchase task. In addition, you need to pay attention to the type of screen. Consider the most popular TV options.

LED screens consist of a liquid crystal matrix with a built-in backlight system, including small reflective diodes. Thanks to these characteristics, TVs provide the maximum color depth and also guarantee more realistic color reproduction. It was the output of LED screens that made it possible to significantly expand the viewing angle in contrast to CRT or plasma TVs. Modern technology has ensured that the most popular models can be viewed at an angle close to 180˚.

The shape of the screen will also affect the size of the diagonal, because now TVs with a curved shape have become very popular.

OLED TVs are modern models, in the production of which no crystals are used, and the image transmission is carried out only using diodes. In this case, each individual pixel is highlighted independently.

Thus, a 32 ″ OLED TV will have a better and more saturated picture than a liquid crystal monitor with the corresponding parameters. This is due to the fact that modern TVs with diode technology transmit more contrast and color images. Samsung TVs of 40 inches and other models, specifically for which the QLED technology has been developed, have similar characteristics.

Useful advice! The high quality and clarity of the displayed image makes it possible to place TVs with QLED and OLED technologies a little closer to the eyes, because they have the least harmful effect on vision.

No crystals are used in the production of OLED TVs, the image is transmitted only using diodes

The shape of the screen will also affect the choice of diagonal, because now, in addition to standard flat screens, curved TVs have begun to gain popularity. It is important to know here that you need to choose a TV size of 60 inches or more, because on a small screen all the advantages of a curved matrix will be lost.The advantage of curved models is that the edges of the screen are closer to each other, which makes it easy to focus on the picture with less visual strain. The price of quality TVs with a curved shape will be higher than the cost of flat screen models with similar properties.

A TV's HDR capability is also considered an important consideration when choosing a technology. The introduction of this technology made it possible to improve the brightness and contrast, which directly affects the quality of the picture, and, consequently, the choice of the optimal distance of the screen from eye level. These TVs enable the user to enjoy a more natural picture.

How to choose the diagonal of TVs in accordance with the characteristics of the room

In order to make it easier to make the right choice of the size of the TV, experts have developed a special formula with which it will be possible to determine the inches of the TV (its diagonal). So, if you buy a screen with a good Full HD resolution, the optimal distance to which from eye level is 2 m, then you need to divide this distance (in cm) by a factor of 1.56. The result of the calculation will be the optimal screen size (in cm), most suitable for the given room. To convert the indicator to inches, you need to divide the resulting number by 2.54.

TVs with 4K or 8K resolution can be watched from a distance of 1.5 m

It is important to know that the better the quality of the screen, the closer it can be positioned. For example, a model with a resolution of 4K or 8K can be viewed from a distance of 1.5 m without harm to health. The better the image quality, the more expensive the equipment will be.

When purchasing a TV for indoor installation, many users make a big mistake and select the largest possible diagonal on a budget, without taking into account either the size or shape of the room, without taking into account the mounting location. If you install a large 50-inch plasma TV in a room with a small area, then you will not be able to look at such a screen for a long time, because your eyes will get tired and your head hurts.

Another significant point when using a large LCD screen is the fact that the oversized TV will heat up and increase the temperature in the room.

It is a mistake to buy TVs as large as possible in small rooms.

Useful advice! Do not choose the diagonal of your TV based on your experience after viewing a device at a retail outlet. In the supermarket at the stand, a large TV will look expensive and chic, but in a small space, it is difficult for the eye to concentrate on such a large image.

Before buying, it is advised to make a small visualization of the screen in the room where you plan to place the device. To do this, you need to select several options for the preferred diagonals of TVs, and then hang a poster on the wall in the place of installation that matches the screen size. After that, you need to conveniently position yourself at the point of the planned viewing and try to understand whether the chosen diagonal will fit and whether it will fit into the surrounding interior.

When choosing the optimal number of TV inches, it is important to take into account not only the area, but also the layout of the room, its actual use. For example, when choosing a TV for the kitchen, you should take into account that the screen should not interfere with the cooking process and should not come close to the edges of heat sources, including fireplaces, radiators, hobs and heaters.

When choosing the number of inches of TV, you need to consider not only the area of ​​the room, but also its layout, as well as the actual use

In short, such a diagonal is considered ideal, the size of which is 2 times less than the distance from the device to eye level.Another important point is the fact that the eyes should cover the entire area of ​​the screen, because otherwise not only part of the image will not be visible, but vision problems may also appear.

Ideal ratio: table of TV diagonals in cm, taking into account the optimal distance from the eyes

Many manufacturers take into account the peculiarities of using screens in different rooms when producing TVs. So, AVEL has released a special 22-inch TV, designed specifically for use in the kitchen - this is the AVS 220K model. This TV can be wall-mounted or built into kitchen cabinets. Due to the fact that the screen is made of durable tempered glass, and also has a level of protection against dirt, dust and moisture, corresponding to the European standard IP-65, it can be used not only in the kitchen, but also in the bathroom. The price of such a TV is about 41 thousand rubles.

Medium-sized rooms allow you to purchase a TV with a diagonal of 22-26 inches

If it is not possible to choose such an expensive TV model, you still need to consider when buying the strength of the screen and its ability to withstand the aggressive kitchen environment. The optimal diagonal size for kitchen appliances is from 16 to 26 inches. You should take into account the following recommendations for choosing a device, depending on the area of ​​the room:

1. In a small kitchen with an area of ​​8-12 m² Do not install a screen larger than 19 "- the best size is 17".
2. Medium-sized rooms (12-15 m²) allow you to purchase a 22-26 ″ TV.
3. To the large kitchen (from 20 m²) in a room combined with a dining room, or in a kitchen-studio, it is quite acceptable to hang a 32-inch TV.

Typically, the largest TVs are installed in the living room, which is often used as a home theater. It is the large diagonal of the TV that allows several people to look at the screen comfortably at the same time. Based on this, the following recommendations are distinguished:

The largest screens are installed in the living room, where they are used as home theaters

1. To select the optimal diagonal of a Full HD TV, the calculation looks like this: the distance from the screen to the viewing point is multiplied by 25. Therefore, if the screen is at a distance of 2.5 m, a diagonal of about 62 inches is considered ideal.
2. If you are purchasing a more expensive model with a 4K resolution, in this case, to calculate the optimal diagonal, you need to multiply the distance to the TV by 39. Therefore, at a distance of 1.5 m you can mount a large 60 ″ TV.

In the bedroom, the TV is viewed mainly in the recumbent position. In this case, you can use the same calculation as when choosing a screen for the living room. Do not forget about choosing the optimal distance to the screen.

Table of distances to the TV, depending on the diagonal, taking into account the most common HD resolution:

These figures are considered approximate, because the placement errors are between 0.3 and 0.7 m. This also takes into account the type of installation, when the screen can be built into furniture, placed on a shelf or installed directly on the wall.

What else to consider when choosing the optimal screen size

To choose the most suitable diagonal, you must first determine the main purpose of buying a TV. For example, if the screen is selected exclusively for viewing content in high quality or in 3D format, you should choose the largest diagonal that the room size allows, and you also need to take care of the appropriate set of functions. In this case, the optimal TV size is 49 inches or more. In addition to choosing the number of pixels, you need to pay attention to other characteristics, such as:

In addition to choosing the number of pixels, you need to pay attention to contrast, color, refresh rate and latency.

• contrast;
• chromaticity;
• frequency of updates;
• delay time.

If the main goal is games, that is, connecting to a console or computer, you can choose a small diagonal, because the screen needs to be located at a short distance. More attention should be paid to the high refresh rate and good matrix. It's also a good idea to buy a model with a smart TV function in this case.

Related article:

TV rating: how to make the right choice

Basic technologies and characteristics. Overview of models depending on the diagonal and additional functions.

When the main purpose of purchasing a TV is to watch standard analogue or digital television programs, even small LCD TVs with a minimum resolution and a standard set of functions will do.

Overview of TVs 24 "and models with a diagonal of 26"

Small diagonal TVs (24-26 inches) are mainly used for kitchens and just small rooms. They are also popular because they are characterized by an affordable price - from 12 thousand rubles. The 24PHT4000 model from the well-known Philips brand gets a high place in the rating. Despite its small dimensions and very thin screen, the equipment has a bright and colorful picture, and its characteristics do not differ from more expensive models. It was the company's good reputation and high quality that made the TV in demand. Other popular models with the same diagonal:

24-26 inch TVs are used for kitchens or small spaces

1. Model 24LF450U from the popular LG brand, which is characterized by reliability, unsurpassed image quality, excellent sound and a very pleasant price - 13 thousand rubles.
2. Model T24D391EX by the South Korean manufacturer Samsung. Samsung TV 24 "is considered the most popular option in this size. This is ensured by the unsurpassed Full HD quality and good sound system. Another advantage is the attractive and stylish design of the model.

In the rating of the 26-inch TV category, the best places are taken by Philips and its 26PFL7532D model with a built-in Pixel Plus HD picture enhanced system, which allows you to clean the TV signal from noise and interference. Additional advantages of the device are a built-in tuner and a speaker system consisting of two speakers - 10 W each. All this fits into a small model case.

In this category, one should also highlight the TV set by BBK Electronics - the LT2621SU model with an LCD-matrix created using the latest technologies. Thanks to the built-in high-speed USB port, you can connect any gadget to the TV and watch videos, photos or listen to music on its screen.

24-inch TVs are also popular because of their low price

Best 32 "and 40" TVs

42-inch (40 or 32) TVs are popular for their mid-size, because they are not huge yet, but not small anymore. If you translate a 43-inch TV into cm, you get a diagonal larger than a meter - 109 cm, such a device will look better in an average-sized bedroom or living room.

It is interesting! The most popular is the 32-inch TV size, in cm this figure exceeds 80 cm.

In the rating of 32-inch TVs, SAMSUNG 32J5200 has a leading position, which, thanks to the development of the Wide Color Enhancer Plus company, has an increased color rendering range and transmits a bright and rich picture to the screen in Full HD. Another advantage of the model is support for the Smart TV system. Of the minuses (according to reviews), you can single out a hang for 2 seconds between channel switching. Other 32 ″ models:

TV sets 32-40 inches are popular for their medium size and affordable price

1. LG 32LH570U with built-in Wi-Fi that allows you to connect to the internet and other devices. With the screen mirroring function, the TV can directly display movies from your phone or tablet. The downside is the availability of applications only from their own storage - LG Store.
2. SONY KDL32WD752SR2.The manufacturer has developed X-Reality PRO ™ technology, which automatically analyzes picture quality. The device, depending on the needs, independently adjusts the color rendition and removes extraneous noise, making it one of the best 32-inch TVs.

SONY has also succeeded in producing 40 ″ screens. For example, the KDL-40RE353 model surprises with high image quality thanks to Direct LED backlighting, which smoothly distributes the image across the screen. All Sony TVs stand out for their design.

SAMSUNG TV UE40K6500AU is characterized by a 40 ″ curved screen, excellent and deep picture, good sound from two speakers with a total power of 20W, surround sound function.

TV model KDL-40RE353 from SONY, thanks to Direct LED backlight, surprises with high image quality

55-inch TVs: the most popular models

Such diagonals are inherent mainly in premium models with a price above 100 thousand rubles. Although LG produces a 55UH770V model with an IPS-matrix and support for the HDR-Super function, which provides an impeccable image quality, the price of which is only 52 thousand rubles. The downside of the model is insufficient black transmission. Other popular 55-inch TV models are also known.

Samsung UE55JS8500T features a curved screen with UHD or 4K resolution, support for 3D format and Internet access. The main disadvantage of the curved model is that you need to view the programs directly in front of the screen. The technology, thanks to the 40 W speakers, provides surround sound. You need to buy 3D separately.

LG OLED55E6V is a premium quality TV with OLED backlight system, which gives the most realistic, crisp, colorful and exceptionally high contrast images. The model has a 4K resolution. The price of the model starts at 173 thousand rubles.

TVs with a diagonal of 55 inches belong to the premium segment and have a price of more than 100 thousand rubles

LG OLED55C6V belongs to high quality TVs, but at the same time it has a more affordable price - 110 thousand rubles. Here, just like in the previous model, there is an OLED matrix with full support for 4K HDR video, which provides maximum contrast. The image quality is on par with other more expensive models of this size, and the OLED Surround system produces good sound. The ultra-thin body is almost the same size as the diagonal.

Choosing a diagonal is a very difficult task, for the solution of which you need to be guided not by the impulse that pushes you to buy the largest TV, but by common sense, which speaks of the need to calculate the screen sizes that are optimal for the room. If you install a device with a large diagonal at too short a distance, you may not experience all the benefits of the screen. It is important to pre-calculate the optimal diagonal - only then it will be possible to choose the ideal option among a large number of TVs.