With the continuous development of science and technology, smart TVs are still integrated into people's lives. Although prices have become cheaper over the coming months, there are more and more brands and models. Therefore, how to choose the TV that is most suitable for you has become more and more difficult. So how do you choose smart TV? Xiao Bian summed up the following points.
1. Look after service guarantee
Although the LCD screen is not prone to problems, if it is a problem, maintenance is a very troublesome thing. Most manufacturers offer warranty services ranging from 1 to 3 years. Some manufacturers even provide free on-site service and reduce maintenance costs during the warranty period.
2. Judging the bad point
The most common problem with LCD LCD screens is "bad spots." Although many products claim that their products "have no bad points," the standards for evaluating bad spots vary from manufacturer to manufacturer. How long does it take for a product to appear dead pixels? ? Or is it a few dead spots? These assessment criteria must be asked clearly so as to avoid damage to equity. General high-quality LCD TVs have strict control over the number of bad spots.
3. The screen should not be too large
The traditional TV display advertises as 17 inches in the specification, but about 1 inch around the panel can not be used for display, and the actual visual size is only about 15 inches. The LCD screen shows 15 inches, the actual visual size is 15 inches. When consumers purchase, they should choose the right size according to the size of the room, so as to avoid the screen is too large and cause oppression. If the living room area is around 30 square meters, choose a 32-inch LCD TV.
4. Visual angle
For the liquid crystal display currently available on the market, the viewing angle is symmetrical (ie, the angle of the image on the screen is the same from the left or right. For example, the viewing angle is 60 degrees on the left, and the right side is also It is 60 degree viewing angle). The upper and lower viewing angles are usually smaller than the left and right viewing angles. From the standpoint of the user, of course, the larger the viewing angle, the better.
5. The choice of brightness
Brightness refers to the brightness of the picture in cd/m2 or nits. Too low brightness is not conducive to clearly displaying the video screen, and it is even more helpless for some dim scenes. In addition, the brightness uniformity of the screen is also very important, but usually not marked in the LCD TV product specification. Whether the brightness is even or not, and the number and configuration of the backlight and mirror are closely related. Switching the screen to a black screen makes it easier to capture uneven brightness.
6. The choice of color
The color gamut that the liquid crystal can express is not as wide as the picture tube, so if compare from the point of real performance object color, the liquid crystal television is inferior to the picture tube television. When purchasing LCD TVs, choosing a model with more color adjustments helps you to adjust images that are closer to natural colors.
7. Note the contrast
Generally speaking, the contrast of the entry screen type is mostly 300:1, and that of the medium type is 450:1, 500:1. If you actually compare the image display capabilities of the entry-level and high-end models, you have a high-contrast screen. The gradient effect of color will be more pronounced, and the color performance will be more lively and abundant. This mainly depends on the needs of users.
8. The response time should not be greater than 16ms
Due to the limitation of the imaging principle, the display response time of the LCD TV is relatively long, and it is reflected in the image that the residual image and the trailing of the moving image are prone to occur, which is unfavorable to the movie and television programs based on dynamic images. Of course, this indicator is as small as possible. Through the efforts of major LCD manufacturers, most LCD TVs have achieved a response speed of about 16ms. The appreciation of TV programs has not basically constituted a problem.
9. Image resolution
The resolution of the LCD TV is fixed, unlike the LCD monitor, which can adjust the resolution. The fixed resolution of the LCD TV is also its best resolution. For LCD TVs, resolution is one of the important parameters. At present, there are several common resolutions such as 800×600, 1280×768, and 1366×768.
10. Screen refresh rate
For LCD monitors, the refresh rate does not flicker the picture. When the refresh rate is 60Hz, the LCD can get a good picture. In the LCD display, each pixel continues to emit light until no light signal is sent to the controller, so the LCD display will not have flickering caused by continuous charge and discharge.
11. Life is not less than 50,000 hours
The life of the backlight is the life of the LCD TV. Generally, the life of the backlight of the LCD TV is more than 50,000 hours. In other words, if you use LCD TVs for an average of 5 hours per day, that means you can use the LCD TV for 27 years.
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