What are the main parameters for buying TV?

What parameters do I need to see when buying TV?

Screen type

Each screen has its own merits. If you pursue image quality, you can try to choose IPS hard screen, X super crystal panel and soft screen from some well-known manufacturers.

The TV screen is the most important part of a TV, accounting for 80% of the total cost of TV. Television screen directly affects the picture quality and is the core part of measuring TV quality. When consumers buy TV, it is best to have a certain understanding of the types of TV panels and see clearly what panels they want to buy.

screen size

The screen size should be determined according to the viewing distance, and it is entirely possible to watch TV over 50 inches at a distance of about three meters.

The size of TV screen is the most intuitive impression of TV, and it is also one of the important reference standards for us to buy TV. The size of TV screen should be determined according to the viewing distance in your home, because watching TV should not only ensure good viewing effect but also avoid viewing fatigue. If you are in the living room, the viewing distance is more than three meters. Then you can choose a TV over 50 inches, but it's better not to exceed 60 inches. If you are in a bedroom or a small living room, then choosing a 42-inch or smaller TV is a better choice.

False resolution

If you choose a 4K TV, you should recognize that it is fake.

TV resolution is the accuracy of screen image, which refers to the number of pixels that TV can display. At present, the hottest TV in the market is the 4K ultra-clear resolution TV, which can provide four times the resolution of 3840×2 160 and 1080P, and can display more details in the TV picture, significantly improving the clarity of the picture.

Response time and two-speed drive technology

● Response time ≠ refresh rate

Comments: It usually takes 8 ms to choose a TV with short response time. Those who often watch sports programs and play games can choose less than 4 ms..

Low two-speed drive technology

Comments: Simple high refresh rate is meaningless, and double-speed drive technology can help solve the smear problem.

Number of interfaces and video decoding

● The interface should be "more" and "new"

Comments: TV interfaces should be complete and sufficient, and it is best to support the latest transmission standards.

● Rich video hard decoding.

Comments: TV hard decoding should support RMVB, MP4, MKV, MPG, MOV and other common formats. , and it is best to support H.265 decoding.

Energy efficiency and power are very important.

● Energy consumption level and power

Editor's comment: When buying a TV, you should see clearly the energy efficiency level, operating power consumption and standby power consumption of the TV.

What are the main parameters for buying a color TV? Thank you!

Price analysis

20 15 what parameters do I need to see when buying a TV set now?

Letv and Xiaomi, the first choice of domestic brands, are not TV at all, Konka and Skyworth are the second worst, but everyone is average in quality (TCL, Hisense, Haier, Changhong, Panda, etc. ). To put it bluntly, at present, domestic brands all buy a screen, a shell and a driver board for assembly, and all of them fight for cost, sales, technical investment and R&D funds. Therefore, the picture quality of domestic TV is naturally very general, and the after-sales service is also very general. Once something goes wrong, you will do everything you can to avoid them. Personally, if you want to buy more than 4000 yuan of goods, there is no need to buy domestic brands.

At present, the Japanese version, American version and Western European version have the best quality and picture quality, which are sold to Europe and America, while Japan keeps them for its own use. In Japan, Toshiba has the best reputation for sales and use, followed by Sony.

In 20 14, the evaluation results of two A/V magazines recognized by Japanese audio-visual fever circle are the most professional. Toshiba 55Z9X and Sony X9500B are the first, Toshiba 55Z8X is the first 20 13, Sony 55X9200a and Sharp 55UD 1 2. The kings of 2K image quality are Toshiba 55Z7 and Sony 65HX950. .

The Hong Kong version and other Asia-Pacific versions are OK, but the mainland version is actually the worst. The grades of circuit chips and panels have shrunk in various ways, and they have shrunk secretly. However, China people have always admired foreign things and admired foreign things, and their tastes are low. They only look at appearance and function. Like to be fooled, so few people can detect it.

To buy TV, I recommend you to look at the professional evaluation in Japan. The so-called assessment agencies in Chinese mainland have low qualifications and little editing knowledge. Most of them accept money from manufacturers. The so-called evaluation is completely nonsense and flattery. There is basically no reference value. Therefore, the original Japanese goods are completely different from those sold in mainland China. .

The picture quality of Samsung TV has never been outstanding. Samsung's good thing is the panel. In 2008 and 2009, the original image quality of black crystal S-PVA panel was very good, with high contrast and deep black, which was adopted by Sony and Toshiba's high-end LCD, but the cost was high. After the separation of the panel factory that Sony cooperated with Samsung, Samsung stopped production of black crystal on 20 10, and then the so-called PVA panels were all cheaper and shrunk. . Last year's Samsung TV was smashed by a great god in the forum. Its TV set is divided into test version and market version. On one occasion, the market version of F8000 was accidentally sent to an evaluation agency, and the blue level overflowed and the green level was ultra-low. The overall picture quality is blue, the contrast is strange and the color is light. Later, Samsung gave some money through public relations, saying that the wrong machine was sent, and a beta version was sent for evaluation. It's cheap, right? 12 years later, the image quality of Samsung's ES series and F series dropped sharply, and the domestic PVA panel index shrank sharply, using Suzhou garbage W-LED as backlight. Seeing the F8000 TVs sponsored by Samsung in TVB Love Home, and the Samsung TVs of some current affairs programs of China Southern Television, the blue picture is outrageous and the picture quality is disgusting. .

But Samsung's after-sales service is very good. As long as you find serious light leakage, bad spots and scratches, you will be brittle and put on a new machine. .

Sharp is not a good thing either. Among Japanese manufacturers, shrinking it is the oldest qualification. First, use Taiwan Province panel, blow four-color UV technology, Japanese original panel. But if you really see the picture quality, you will feel that it is all fart, dynamic blur, and black bits are a mess. Some series still have color cast problems, and human skin is pig liver color. Sharp's high-end panels, even reluctant to use more, are mostly used as monitors, and the effect is very good. However, only a few models XS 1A RX 1 are decentralized for civilian use, and X50 is considered qualified. Later, the so-called high-end LX930, LX950A, LX850 and LX730A were all unqualified, but the price was still expensive. . Sharp downsized itself, but it also brought several other good Japanese brands, followed by Sony, Toshiba and Panasonic. . Now Sharp LCD factory has been sold to Foxconn. High-grade Kameyama panels were discontinued as early as 20 1 1. Now cheap shrink plates are produced in large quantities, and the cost is controlled. Sharp's after-sales service is quite satisfactory, and the customer service looks high.

Let me talk about LG again. Before 20 12, LG's LCD image quality was quite satisfactory. In 2008 and 2009, LG's own IPS TV has a strong sense of oil painting and doesn't like it very much. LG's so-called XD engine has not improved much in dynamic definition, standard definition and non-point-to-point image quality. The standard definition optimization technology is average, and the Korean TV color matching technology is average. ......

What parameters should I pay attention to when buying TV?

It is certainly good to choose Hitachi or Samsung LG for LCD screen. Note: Generally, when selling TV, the seller will play the store-specific CD to improve the fineness of the LED display. "Pay attention to this" Now there is a cable interface +USB+HIDI interface on TV. Pay attention to choosing some Japanese or Korean TVs (Toshiba Sanyo Sharp Sony LG Samsung, etc.). ). Please give points in time if you are satisfied with the domestic technical mud.

What are the main parameters to buy LCD TV?

The advantages of LCD TV mainly lie in the following aspects: First, the image definition is high, which can generally reach 1024*768 pixels, fully meeting the requirements of future high-definition digital TV. Second, the body is light and thin, and the thickness is less than 4cm, which is only 1/2~ 1/3 of that of plasma TV and about110 of ordinary CRT TV. Third, the appearance is fashionable and beautiful, which is very in line with the aesthetic taste of contemporary people, especially by the younger generation. Fourth, the service life is long, generally reaching more than 50,000 hours. If it is used for 8 hours, it can be used for 17 years, which is longer than the service life of ordinary CRT color TV. Five, environmental protection and energy saving, LCD TV adopts progressive scanning and dot matrix imaging, and the image has no flicker, which will not cause harm to human eyes. The power of 2 1 inch LCD TV is 40W, and the power of 30-inch LCD TV is 120W, which saves electricity compared with ordinary CRT color TV.

However, LCD TV also has some inherent technical defects: the price of large-size LCD TV remains high. LCD TVs can only compete with plasma TVs with products over 42 inches, but now these products are still "sky-high". Take Sharp's 45-inch LCD TV as an example, its market price is nearly 70,000 yuan, while the price of plasma TV with the same display area has dropped to less than 20,000 yuan, and some have approached the 10,000 yuan mark. It will take a long time for the price of LCD TV to fall within the price range similar to that of plasma TV of the same specification. The main reason for this situation is the low yield in the manufacturing process of large-screen LCD panels, which leads to the inability to reduce costs. The technology of large-screen LCD panel is still in a relatively closed state, and there is no competition for mass production in the world, and the quality is also very different.

Bad question. The problem of bad spots is one of the biggest problems that plague LCD TV. The bad spots on the LCD panel can't be repaired, so the LCD panel can only be replaced, and the LCD panel accounts for at least 70% of the total LCD TV cost. If it is damaged during use, it will be a huge investment. Of course, there are also manufacturers who provide zero-defect product quality promises, but whether the defective products are recycled or scrapped, some inevitable costs will be generated, and these costs will eventually be passed on to consumers.

Since it is a product made of liquid crystal material, there is not much difference between the way of choosing LCD TV and ordinary LCD monitors for computers. Its main points mainly include:

1, contrast: the so-called contrast refers to the contrast of black and white colors displayed on the screen, which represents how many levels are divided from all black to all white. All black is 0 and all white is 1. For example, 300: 1 means from all black to all white, and * * * is divided into 00 levels. When the contrast reaches 120: 1, vivid and rich colors can be easily displayed. When the contrast reaches 300: 1, it can support colors of all levels. So theoretically, the higher the value, the stronger the layering of the picture.

2. Brightness: indicates the brightness of the light emitted by the backlight bulb of the LCD panel, and its measurement unit is "cd/m2" per square meter candle, commonly known as Nite. People with low brightness will think the screen is dark, of course, it would be better to be brighter. At present, the brightness of LCD in the domestic market is about 200-300cd/m2. However, if the screen is too bright, people's eyes will feel tired when they look at the screen for too long. So for the vast majority of users, too high brightness has no practical significance. In addition, it is worth noting that liquid crystal displays are generally very bright in the central part of the screen, and the brightness near the edge will drop by nearly 25%. Therefore, the best and most effective method is to compare and test multiple LCD monitors side by side and choose the one with uniform average brightness.

3. Reflectivity: Even if an LCD TV has a good picture quality and bright colors, if the reflectivity is too high, the reflection can be used as a mirror, no matter how good it is. If you want to know the reflection degree of LCD TV, it's simple. Turn off its power first. If the picture is dark, it means there is less reflection.

4. Viewing angle: As far as LCD/TV sets on the market are concerned, the viewing angle is symmetrical. In other words, the image on the screen can be seen from the left or right at the same angle. For example, the viewing angle on the left is 60 degrees, and the viewing angle on the right must also be 60 degrees. The up and down viewing angles are usually smaller than the left and right viewing angles. Slave use ......

How to choose TV depends on parameters. I must buy a 55-inch TV.

Compared with the smart TV on the market a few years ago, the hardware configuration of smart TV on the market is constantly updated and strengthened, and the screen has also developed from 32 inches to 42 inches, 55 inches or even 84 inches. The system also keeps up with the pace of Android, and most smart TVs have been upgraded to Android version 4.2 or above. In addition to the improvement of hardware configuration, smart TV has more complete functions. Built-in online video platform, Android application market can expand the function of smart TV, and open application is the basic factor for many users to choose smart TV.

Before we buy smart TV, we often only see the one-sided propaganda of manufacturers, which is often misleading. For example, spending more money on impractical functions has caused a waste of money and resources. Therefore, today I want to talk to you about some misunderstandings that consumers often encounter in the process of purchasing smart TVs. Let's take a patient look, hoping to help friends who plan to buy smart TVs.

1: Multi-core does not necessarily require everyone to be rational when purchasing a machine.

At the beginning of the development of smart TV, no manufacturer began to speculate on the concept of multi-core processor. However, since the second half of 20 12, dual-core, quad-core and even six-core processors and eight nuclear processors have emerged continuously. Manufacturers also make full use of the media to promote the benefits of multi-core processors, as if users are embarrassed to say hello when they buy a multi-core smart TV. The author believes that the promotion of manufacturers is understandable, but as consumers, rationality is the most important thing, and it is not a wise choice to blindly pursue multi-core.

In fact, the processors configured in smart TVs are similar to those in tablets and smart phones. For example, A9 dual-core processor, which is common to everyone, is widely used in many smart TVs at present. We can't deny the benefits of multi-core processors. For example, watching 3D movies and playing 3D games, the details of the picture can be restored very well, and multi-tasking will not get stuck.

However, some buyers have low requirements for smart TV. For example, when you buy a smart TV, you only watch online video-on-demand programs, occasionally chat with QQ video on TV, send a Weibo to Weibo TV version, and forward the comments to Weibo, a good friend, and so on. For these users, they are only faced with some lightweight applications every day. Buying a four-core or even six-core smart TV will have the feeling of a big horse-drawn car. Users not only need to spend a lot of money to buy machines, but also waste resources. In addition, the power consumption and calorific value of multi-core processors are not small, and these problems can not be ignored.

Make the best use of everything and spend money on the cutting edge. As consumers, we should keep our eyes open and look carefully, otherwise we will be fooled by the propaganda of manufacturers. For users who don't have high requirements for smart TV, ordinary single-core or dual-core TV is enough, and there is absolutely no need to follow suit.

2. Some selling points hype gimmicks far more than practical.

Smart TV is called smart because compared with traditional TV, rich app has become a very important reason. We also see that some manufacturers have developed many additional functions on the basis of APP. For example, a brand of smart TV has developed many unexpected new functions under the slogan of cloud health. For example, weigh yourself on TV and measure your blood lipid and blood pressure.

This function, together with the corresponding APP, can also give corresponding suggestions to let users know their physical condition. This new function is very creative, but its practicality is greatly reduced. First of all, electronic scales are not standard and need to be purchased separately by users. In fact, if you think about it carefully, the biggest use of electronic scales is weighing. Because there are no electronic scales and other accessories for sale in the official shopping mall of this brand, the author searched online for related accessories sold by third parties.

According to the information on the web page, this electronic scale has a traditional LCD screen, which can display weight information. In addition, it also supports wireless transmission to smart TV. However, this function can only be completed by using USB Bluetooth adapter. The total cost is 120 yuan +38 yuan = 158 yuan, which means that users have to spend 158 yuan to buy electronic scales and their accessories. Compared with the price of ordinary electronics, it can be said that there is a big gap. When weighing, you need to turn on the TV connection. How long can this enthusiasm keep users? And there is a problem that needs to be faced, and young people may be able to operate skillfully. As for the elderly at home, it is also unknown whether they can successfully complete the weight measurement.

New functions and new technologies are understandable, which provides convenience for users. However, the publicity stunt based on measuring weight, blood pressure and blood lipid always gives people a feeling of hype. People don't have me, and people have my essence. We still hope that manufacturers can consider the problem from another angle and develop the functions that users urgently need, instead of trying their best to attract attention.

3. The application of shopping malls is very important. ......

What configurations do online TV sets mainly look at?

The following are the configurations and parameters that you must know, which are divided into two parts (primary and secondary):

First, the main configuration

1, LCD TV is LCD or LED panel (LED has the advantages of power saving, more realistic picture and longer service life);

2. Whether the LCD panel is a soft screen or a hard screen (the advantage of a hard screen is that the moving picture does not trail);

3. Whether to bring a USB plug-in or not, and whether to bring the playback function of mainstream video formats such as RMVB (USB plug-in playback function: plug in a USB flash drive, and the TV can play HD movies, MP3 players, pictures, etc. On the USB flash drive).

Second, the auxiliary configuration

1, whether to adopt 100/ 120Hz double-speed technology (double-speed liquid crystal drive technology: effectively eliminate the phenomenon of picture tailing, and the dynamic picture is comparable to plasma, especially suitable for watching ball games and action movies);

2. Whether to bring 3D TV (the so-called 3D TV is to add a special precision cylindrical lens screen on the liquid crystal panel to send the encoded 3D video images to people's left and right eyes independently, so that users can experience stereoscopic effect with their naked eyes and be compatible with 2D images without using stereoscopic glasses);

3. Do you have network function (network function: directly plug in the network cable to browse the web and watch videos, etc. )

What configuration do I need to buy a smart TV?

Of course, the most important thing is to look at the chip, brand, CPU, GPU, memory, flash memory, and how big the memory card is supported. And its intelligent system is also very important, otherwise there are few download channels and few applications, which is meaningless.

I recommend you to buy Toshiba's smart computer. If I buy it, I will choose Toshiba's smart TV. Toshiba's Android box uses 1.6GHz dual-core CPU, quad-core GPU, 1G memory, 4G flash memory, and can support up to 32G external memory cards. Toshiba has produced 1/3 notebook flash memory and 1/4 mobile phone image processing chip all over the world. The flash memory and chips in the Android box are Toshiba's own technology, so our Android.

Ensure that the most popular games such as defending radishes and finding girls can run smoothly and do whatever you want.

What parameters do smart TVs generally watch?

Smart TV, see the parameters:

Screen types, such as plasma screen and LCD screen. Most of them are LCD screens at present.

The size of the screen, that is, how big it is, such as 42 inches, 47 inches and so on.

Backlight types, namely cold cathode backlight (CCFL) and LED backlight. At present, most of them are LEDs.

Supported resolutions, the higher the number, the higher the resolution.

Contrast and brightness level. Generally, the contrast is required to be large enough and the brightness is large.

Support network types. LAN (network cable input), WLAN (wireless network).

Whether to support 3D. At present, most support.

What performance parameters do you usually look at when buying an LCD TV?

1. Note whether there is an HDMI interface.

The importance of this interface mainly lies in the fact that disk drives, computers, home theaters and other devices will actively adopt this interface. Therefore, determining whether you need an HDMI interface before buying can reduce the chance of regret after buying.

2. Pay attention to the actual resolution

The actual resolution of LCD TV refers to the resolution that LCD TV can achieve, which should generally be above 1280* 1080.

3. Brightness, contrast and viewing angle

Manufacturers often exaggerate brightness and contrast. Generally speaking, products with brightness of 500 lumens and contrast of 600: 1 or above are good. In fact, consumers can directly ignore the brightness and contrast parameters provided by manufacturers (too fake) and directly focus on their own visual experience. The method is to check the brightness and contrast of the screen display at a distance of 5 meters, pay attention to some details in dark scenes, and compare several products. Then you will know whether the LCD TV you want to buy can satisfy you in brightness and contrast. At present, the viewing angle of LCD panels is generally above 170. It should be noted that when viewed from the side, you should pay attention to whether the left, right and center images of the screen are clear and the brightness is quite different, and choose the product with the smallest difference.