When choosing a modern TV, it is recommended to pay attention to the technical specifications. There are many TVs on the market, you can get lost when choosing the right model. Manufacturers, on the other hand, go to tricks, lower-quality models are sold for the same price. With all the declared possibilities, it is recommended to inspect the picture in stores, because the subjective opinion of buyers is ambiguous. Sometimes the same screen is perceived differently by visitors.
Key technical features of flat-panel TVs
TV specs are often limited listings, with consultants pointing out only the selling points. The manufacturer makes a revision of the appearance without changing the previous capabilities of the internal hardware. And the sellers expose the TV as a technically improved version. However, by browsing the Internet, you can easily spot the catch.
Let's highlight the main characteristics of TVs that are important for the buyer:
- Screen: brightness, resolution, diagonal, shape.
- Sound: volume, number of speakers, sound enhancement software.
- Ease of use of the menu, remote control, compatibility with gadgets.
- Additional features: Internet connection via cable or Wi-Fi, built-in decoders.
- Economy, ways to adjust the brightness: automatically or manually.
- Thickness, weight, appearance of the purchased device.
Problems of choice
With all the listed properties of the TV, incomplete information is provided for purchasing the device. If the buyer has chosen an LG TV, the price may be much lower when looking at the next model. The maximum set of features for an average cost is rarely found.
Specifications of TVs are skillfully varied by manufacturers, forcing buyers to take half devices without Wi-Fi, but with an updated version of the remote control or a curved screen with a low-power processor. Additional features are useful, but sacrificing the main parameters for them is not practical.
Professional approach
TV specifications are often presented in a favorable light for the buyer. Many people confuse the screen resolution of 1920 p and 720 p, which is almost impossible to distinguish from the outside in the store.
Select the parameters specified in the device passport:
- pixel response;
- viewing angle;
- color rendering;
- matrix type;
- how to highlight the picture;
- ability to transmit 3D images.
The characteristics of LCD TVs are selected according to the operating conditions. If the room does not have sunlight, a super bright LED screen is not necessary. Ateven powerful emitters cannot cope with daylight rays.
In the electronics market, LG TV is offered, the price of which is lower than that of competitors with similar characteristics. It is equipped with a screen built on quantum dots. The image is transmitted in realistic colors, the picture does not fade in the sunlight.
Additional parameters
Experienced users pay attention to the number of interfaces. Type of connection with peripheral devices: USB, COM port, VGA, HDMI connectors. Image quality is affected by the built-in graphics processor, which can be selected from the test tables provided on the Internet.
USB connections are classified according to their read speed version: 2.0 or 3.0. The latest models have a convenient SMART control menu, some top-end TVs follow the commands of the owner's voice and gestures. To eliminate distortion of dynamic pictures, the developers supply the TV with a special mode. This becomes relevant when you connect a set-top box or watch sports channels.
Easy integration into new TVs
Manufacturers complete models with functions:
- 3D effect brings home movies to life in 3D. New TVs no longer require the use of special glasses;
- Smart TV is an integrated environment for receiving a signal from the Internet. The software shell expands the list of channels, allowing you to use almost any television resource around the world. No need to pull a separate ISP cable, which greatlyreduces the cost of monthly maintenance. You will need Internet LAN or Wi-Fi, and every home already has it.
- 4K is four times the resolution of FullHD, allowing you to view video from professional cameras.
Power and type of emitter
Plasma screens have lower brightness levels than LCD and LED TVs. Prices and features previously dominated the first type of TV, but over time, new technologies have taken over. However, plasma still delivers richer colors by using a discharge directly at the glow point.
LED TVs are equipped with emitters that provide a luminous flux of up to 500 cd/m2. Pixel illumination requires a powerful lamp behind the screen, located at the bottom center in a single instance or in a two-row arrangement. The latest TV models are equipped with bright diodes, the effect of color disappearing when changing the viewing angle is eliminated.
Comparison of models
The light source of LCD models is a powerful lamp, hence the small viewing angle and brightness. Characteristics of LED TVs are enhanced by the use of bright diodes. Plasma screens are expensive, but have high contrast. The saturation of colors is obtained by image reproduction technology: the glow is formed not by a lamp, but by a discharge at each point.
Characteristics of LED TVs are close to plasma. The latest models are lightweight and have a large screen size. Curved screen options are designed toprovide the viewer with an image without spatial distortion. The advantages of LED are: thin layer of pixels, high brightness, light weight of electronics.
Real cinephiles choose plasma TVs, the characteristics of which are a high-quality image, saturation and a minimum pixel response time. But for good dynamics and review, the owners pay with shortcomings:
- gradual screen burn-in, rated for 30,000 hours, an average of about 9 years of daily movie viewing;
- large mass of the device;
- increased energy consumption.
Plasma has the advantage of watching movies in a dark room, blacks are more pronounced than LCD TVs.
Pixel response and resolution
Competitive models are capable of reproducing fine image details and preserving the outlines of dynamic images. Plasma and LED TVs have such features. Characteristics, description are indicated in the device passport. It is recommended that you read the documentation before purchasing.
Users noted a regularity: similar screen parameters from different manufacturers do not guarantee that the picture will be played the same way. This feature is noticeable when two TVs are placed side by side and turned on at full brightness. This is due to manufacturing technology and the subjective perception of the human visual organ.
Response time affects imagemoving subjects, very fine details are clearly visible in 4K resolution. This characteristic of TV screens appeared on Asian models. But manufacturers promise to introduce such screens on all future TVs.
DVB-T2 is a common digital broadcasting standard in Russia. For satellite TV - DVB-S2, but decoder set-top boxes are often used to receive the signal of the latter format. News programs and many TV shows are broadcast in 720 x 576 resolution.
Buying expensive and multi-functional high-definition models just to watch evening shows is comparable to buying an all-terrain jeep for city driving. When it comes to prestige, then there is some sense in this. From the point of view of the layman, rational cost savings become the basis for choosing TVs.
Viewing angle and contrast
Budget LCD screens have significant drawbacks. If the viewing point is chosen incorrectly, the geometric size of the images is distorted and the color of the image changes. This largely depends on the technology for converting a digital signal into a visible glow: plasma, LED indication, LCD panel.
The contrast parameter is important. None of the presented technologies can provide a completely black pixel. Neighboring luminous dots give the non-working link a gray tint. This characteristic is indicated by the ratio between black and white. The larger the gap, the more natural the transmission.
What can you save on?
Whenwhen choosing expensive multifunctional equipment, it is recommended to take into account the peculiarities of television broadcasting standards. It is not advisable to purchase the 4K resolution function if the TV is intended for viewing HDTV broadcasts. Customers often overpay for Smart TV control but do not use the Internet.
A similar situation occurs with the 3D function. A partial survey showed that mature shoppers watched this format of video several times after purchase. An expensive option is interesting for young people and children. The TV is controlled by the following options:
- manual from the buttons on the front of the device;
- using the remote control is the most practical way to change channels;
- voice - new product increases the cost of the TV;
- gestures - a rare option that also affects the price of TV.
You should not save on image quality, because a new TV is purchased in order to improve the transmission of realistic objects. A natural picture is obtained using the new UHD technology - quantum dots that transmit natural colors with high contrast.
