Modern TV models are very different from those that were only five years ago. This is no longer just a “box with pictures,” it is a complete system with various functions and capabilities. Technologies are developing so fast that it’s not easy to keep track of them. How to understand all the innovations in the development of TVs, and how to choose the right model. You will learn about all this from this article.
- Diagonal size and types of television signals
- Types of TV screens
- Varieties of matrices and backlights in LCD displays
- 3D format and Smart TV
- Popular TV models
Diagonal size and types of television signals
First you need to decide on a budget and decide what is preferable for you to a large diagonal or a high technological class of TV. If all you need is a large screen size, then choose models with the most inexpensive features. If you go so that your TV has all the modern features, and the budget is limited, it makes sense to save on the size of the diagonal.
But you can find a middle ground and purchase a TV with a good screen size and even if not with the latest developments, but still with modern technology.
TV signal at your home
Before buying a TV, check the quality of the signal source in your home. Today, there are several types of television.
- Broadcast Television (SD) usually has a low signal quality, so if you plan to watch mostly only such television, then you don’t need a big tap. On the contrary, due to the low quality of the original signal, the large screen is only able to emphasize all the imperfections of the image.
- High definition image (HDTV) occurs more and more often, more and more satellite and cable channels broadcast in high resolution 1920 × 1080 pixels. In this format, a large screen size can only emphasize all the advantages of the image.
- Ultra High Definition Television (UHDTV). The Ultra HD format is the newest and so far rare. Image resolution 3840 × 2160 pixels allows you to watch TV from a very close distance without loss of quality, since even near you will not see the individual points that make up the image.
See also a video on how to choose a TV:
Types of TV screens
Since plasma TVs were discontinued, two main types of TVs remained: LCD TVs and with organic LEDs.
LCD TVs (LED LCD)
Liquid crystals are the most common technology to date. TVs with such displays are light weight and low power consumption. LCD displays are easy to manufacture, which leads to their low cost and a wide variety of models.
Organic LEDs (OLED)
A relatively new technology, which uses organic LEDs in the form of a panel, each LED is an independent light source. That is, there is no need for a backlight unit, as in LCD displays, which makes the picture better, and the cases are even thinner. Such screens are very expensive and represented by a narrow range in our market, at the moment you can find TVs only with a diagonal of 55 inches.
Due to the lack of plasma TVs on the market and the high cost of OLED technology, your choice is likely to fall on LCD displays, so we will tell you more about them.
Varieties of matrices and backlights in LCD displays
The matrix and the type of backlight are the main factors that are responsible for image quality.
To date, such a matrix can only be found on TVs of the lowest class with a screen size of up to 32 inches. The picture is characterized by normal brightness and contrast, but viewing angles are very limited, especially vertically. The advantages of this matrix include its low cost.
It is used both in high-end televisions, as well as in middle and lower class. In all respects, it is better than the previous matrix, has greater brightness, contrast, has wider viewing angles, which are better only with the IPS matrix. The image looks good indoors with dim light.
Of all the types of matrices intended for LCD displays, the IPS matrix has the widest viewing angle. In bright light, the image looks good. In contrast, inferior to the matrix VA.
Many modern TVs use the last two matrices, in terms of their characteristics and price category they are very similar.
The following backlight types are used on LCD screens:
- Side lighting (EDGE LED) meets quite often. Light sources are located only on the sides of the screen, which saves electricity consumption. This type of backlight allows you to make TV cases as thin as possible. The disadvantages include the uneven distribution of light, which can lead to the formation of brighter areas in the image.
- Direct backlight (Direct LED) rarely used. This type of backlight eliminates the uneven distribution of brightness, but the TV screen will no longer be as thin as with side illumination.
- Dynamic local backlight is the most efficient type of backlight for LCD displays. The backlight consists of a group of LEDs that can change the degree of lighting, adjusting to the image. This improves the contrast of the image, and the backlight becomes more even. There are very few models with local illumination on the market, it can only be found in high-end models at a very high price.
3D format and Smart TV
The technology of forming three-dimensional images is found in televisions of different classes, moreover, there is a decrease in demand for this format for home television. Today you can find modern models where this function is already excluded.
Two technologies for forming a three-dimensional image are used:
- Active technology.
The main difference is that glasses for watching TV must have their own energy source, batteries or a rechargeable battery. The image is formed at a double frequent, the image is displayed for each eye in turn, and 3D glasses transform the image so that we see it three-dimensional.
The negative point is that the glasses require recharging or changing batteries, the image flickers slightly, which can tire your eyes when viewing it for a long time. The brightness of the picture decreases, but at the same time, it is characterized by high definition. This technology is well suited for home viewing in a dark room.
- Passive technology.
This technology is also called polarizing, because the princes of work are based on this physical phenomenon. Two images are displayed simultaneously on the screen, thereby dividing the screen into even and odd sections. Special glasses have different polarization in each lens, thereby a person sees two images at once, which are superimposed and form a three-dimensional image.
Due to the fact that the picture does not flicker, viewing does not tire the eyes so much. The brightness is better than with active technology, which allows you to watch movies in bright light. Glasses do not require any power sources. But the image decreases clarity and detail.
Translated into Russian as “smart TV” - this is a technology for integrating TV and the Internet, found in most modern models. Connecting to the World Wide Web expands the capabilities of the TV, making it more like a computer. You can use the browser to find the necessary information, download and use various applications, watch online movies, without using a television signal.
When choosing a Smart TV, we recommend that you pay attention to the following points: simplicity and convenience management; speed of work; what applications are installed; is there voice control and built-in Webcam.
Popular TV models
Belongs to the low class, has a low cost on average 16,990 rubles. Diagonal of 31 inches, direct type of backlight, IPS matrix, supports Full HD format, stereo sound. All this allows you to enjoy viewing the image in good quality and with excellent sound. This model is well suited for those who believe that 3D and Smart TV are unnecessary for the TV, and do not want to overpay for this.
A 40-inch LCD with Full HD support and 20-watt stereo sound are only the first advantages of this model. Its main feature in the new Smart TV system, which can be controlled by gestures. The quad-core processor improves performance, increasing speed even in multitasking mode. And the 3D format will expand your idea of watching a movie at home. The average cost is 27,880 rubles.
Stylish design, a large screen with a diagonal of 42 inches, Edge LED backlight, VA matrix, will allow you to enjoy a great image. X-Reality PRO technology allows you to make any image closer to Full HD quality. Watch your favorite movie in 3D and use various applications using Smart TV. The cost of this model is considerable about 37,000 rubles, but it's worth it.
Choose your TV correctly, do not hesitate to find out from the consultant about unfamiliar names in the characteristics, progress is not It stands still and new functions appear every day that can significantly improve and diversify the viewing process.
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