Which is better to buy a LCD TV

Thanks to the development of modern technology, LCD or lcd TVs have gained great popularity among users. The indisputable advantages of this technology include modern design, low power consumption, small size, perfect geometry of the image with high resolution. but choose the right TV - the task is complicated: the product range is growing, there is a lot of information on this issue. Our review will allow you to navigate in the main technical characteristics of LCD devices, and useful recommendations on how to choose a TV with an LCD display will save time and money from a rash purchase.

LCD Definition

LCD abbreviation (full name liquid crystal display) indicates a liquid crystal display in the technique. From him, TVs got their modern name with the prefix "LCD". The manufacturing technology of monitors consists in using liquid crystal molecules that react to electrode discharges. As a result of these discharges, they change their brightness and color, lining up in the direction of the electric field.

The image on the monitor consists of the combined combinations in a certain mosaic order RGB-triad subpixels (green, blue and red). Hundreds of thousands of points make up a visual video image on the display, which we perceive as a colorful “picture” on the monitor. You can learn more about the principle of operation and features of such TVs from their comparative performance with LED or with plasma panels.

From theory, let us move on to practical advice that will help you choose an LCD TV for the main parameters.

What technical specifications you should pay attention

Before you go to buy a TV, the buyer must determine a number of factors:

• diagonal and proportions of the monitor;
• matrix type and class;
• display resolution;
• video brightness and contrast;
• viewing angle;
• acoustics;
• response time;
• the number and availability of connectors for digital devices.

Each parameter is an important aspect in engineering. Therefore, it is better to choose consciously and after a detailed study of each characteristic.

Features and various screen size formats

Televisions with LCD displays have different diagonals, which are measured in inches. Choosing this option, you need to consider the minimum TV viewing distance.

1. If the zone for viewing is planned at a distance of 1.5-2 meters, then a monitor of 20-26 ″ is recommended.
2. For two or three meters - display 32-42 ″.
3. For 44-56-inch monitors, the distance for viewing should be at least 2.5-4 meters.

In addition to the diagonal of the display, all modern TVs, including LCD, have screen aspect ratio: width to height. Manufacturers adhere to two proportions: 16: 9 and 4: 3.The second value happens at the TVs intended for display of analog television, the first indicates that the display is widescreen. The 16: 9 ratio is required for broadcasting digital TV.

Distinctive features of the matrix class

TVs use several types of matrices that differ in their production technology. Consider the most standard varieties.

1. TN + film. Standard technology is different low cost. The disadvantages of the TN matrix include low color reproduction due to the 6-bit color channel, low viewing angle, bright pixels, if the crystal burns.
   
2. Ips. The main features - the best transfer of shades and good viewing angles, rather than in the previous type of matrix. However, for better viewing in the settings you need to set the contrast. In the event that the pixels cease to function, they will become black.
   
3. VA. This matrix was used to produce the first LCD displays. They convey color combinations well. video contrast. However, at certain viewing angles, the detail of the image is less traced, and the color white balance changes.
   

Technology does not stand still, and based on the last two types of matrices, manufacturers have created improved versions that improve image quality and other parameters.

Display resolution

This criterion determines the smooth transition of the spectrum of colors and degree of detail video images. Measured resolution in the number of pixels horizontally and vertically. The manufacturer in the passport indicates a smaller parameter. The larger the size of the monitor, the higher the number of pixels. Select display resolution associated with the capabilities of the broadcast signal.

When choosing equipment for analog TV, 720p is enough, for satellite or terrestrial - 1080p in Full HD quality. For broadcasting DVD movies, a resolution of at least 1366 × 768 is recommended.

Contrast and brightness of the video image

Device contrast is a parameter that indicates a rich palette of various colors. The higher this criterion, the better will be the color rendition of the resulting video image. LCD TVs are released with a statistical contrast ratio of 800 to 1.This proportion indicates that the most darkened areas of the picture differ from the lighter areas 800 times.

The next important characteristic of the TV with LCD screen is the brightness of the image. In order not to strain your eyesight, a value of at least 450 cd / m2 is recommended. Some models are equipped built-in sensor which determines the level of illumination in the room where there is a technique. When its value changes up or down, the brightness automatically changes to a more optimal one for viewing.

Viewing angle

The viewing angles of the image can be horizontal and vertical. Their values ​​must also be taken into account. This is due to the fact that when broadcasting television and video at a certain angle, the contrast is reduced and colors are distorted. The minimum values ​​of viewing angles in different planes - 160 degrees. They indicate that when broadcasting TV programs at an angle of 80⁰ The contrast of the image will decrease by 10 percent, unlike if you look at it in the center.

The recommended value for the viewing angle when choosing an LCD TV is 178 degrees.

Acoustics

Stereo liquid crystal system equipped with digital amplifierfor optimum clarity. Technique of the latest models should be equipped with at least a 2-way speaker system consisting of tweeters and four speakers. To comfortably perceive sound, the size of the speakers is not less than 6 cm.

Monitor response time

In order for a broadcast picture to appear on the monitor display, the liquid crystals move from the initial position to the target position, taking the time. Image quality and optimum viewing comfort depend on it. This parameter is measured in milliseconds. If the response time is higher, then the picture may overlap and a loop will appear. This parameter is very important for gamers when choosing a TV for Play Station.

In LCD TVs, this value is recommended not higher than 8 ms. The best value is the response time of 2-3 ms.

Connectors and main ports for connecting devices

To turn your LCD TV into a media center with advanced features, it must have a standard set of built-in inputs and outputs.

1. S-Video connector, component inputs and composite ports.They are required for transmission analog signals.
2. RGB connector - using it, the image from the PC is transmitted to the monitor display.
3. SCART - multichannel 21-pin transmission interface bidirectional analog signal.
4. Digital DVI connector. When transmitting through this port, the signal is not subject to conversion. Using it reduces the likelihood of interference.
5. HDMI Through it can be transmitted high-definition signal HDTV with simultaneous transmission of sound. This interface helps quickly Connect the PC to the TV.
6. FireWire connector - consists of a digital system for connecting the camcorder to the TV and other digital recording devices.
7. USB for flash drive connections, media player and other devices.

Popular models of LCD TVs

If you have any doubts which is better to buy an LCD TV for the house, we recommend you to get acquainted with the best models.

1. AVIS AVS320FS (Magic Mirror). This LCD TV moisture proof display Made with LED backlight and 1080p Full HD resolution. The monitor in 32 ″ will ideally fit into a nursery, kitchen or a small-sized drawing room. The main advantages include the original mirror design, high-quality image, rich color rendition, convenient functionality.Disadvantages - the high price of the product. The cost of 90,000 rubles.
   

   TV AVIS AVS320FS (Magic Mirror)

2. Philips 32PHT4101. South Korean LCD TV with a monitor of 32 ″ has a 720p HD extension. Main advantages: rich colors, low cost, convenient management, main formats are supported. The disadvantages include long channel switching. The cost of 13,000 rubles.
   

   Philips TV 32PHT4101

3. LG 32LH520U. A well-known company creates high-quality samples of equipment with innovative Led backlight. The model, like all TVs lg, has a powerful sound system, high color reproduction, a convenient menu and a decent image of a monitor with a diagonal of 32 ″. Advantages: availability digital television standard DVB—T2, convenient settings, beautiful design. This digital TV is inexpensive - the price of 15,320 rubles.
   

   LG TV 32LH520U

4. Samsung UE40KU6300U. This device features a curved screen of 40 ″ and a graceful stand. 4K UHD resolution (2160 by 3840 pixels) makes the picture clear and less grainy. Great as a monitor to a PC. Pros: high-quality image, beautiful design, comfortable remote with a minimum of buttons, good build quality. Disadvantages: the need to adjust the contrast, the lack of Bluetooth, 2 usb ports, few applications in Tizen OS. The cost of 33,000 rubles.
   

   Samsung TV UE40KU6300U

Owner reviews

Before you choose a quality TV for your home, buyers pay attention to people's feedback. Here are some of them.

Conclusion

To buy an LCD TV for watching TV, decide what functions the device will perform, what equipment you want to connect to it, what sizes, diagonal, expansion, features are preferable, and, most importantly, what amount you expect.Knowing how to choose the optimal model of LCD TV, the user will receive a technique that will meet all his expectations.