What parameters do I need to see when buying a TV set?

Generally speaking, when buying a TV, you need to check the following parameters:

1, resolution:

Resolution is an important criterion to measure the performance of LCD TV. At present, the mainstream resolution parameters in the market are 1366× 768 and 1920× 1080. The definition of high-definition flat-panel TV is higher than 720 lines in both horizontal and vertical directions. Simply put, a real high-definition flat-panel TV must meet the condition that the resolution is higher than 1366×768.

2. Response time:

Response time is also very important, which will determine whether there will be blurring and tailing when displaying high-speed dynamic pictures. Experts from purchasing partners remind everyone that the current mainstream response time of 8 milliseconds can basically meet the use requirements. Generally speaking, the faster the reaction time, the less smear and afterimage appear on LCD TV.

3. Brightness and contrast:

You can directly check the brightness and contrast parameters provided by the manufacturer, or you can focus on your 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.

4. Size:

It is necessary to know the size of the house where the TV is placed, so as to determine which size TV should be purchased. For example, the best viewing distance of 42-inch LCD TV is 2.5 to 3.3 meters, 47-inch LCD TV is 3 to 4 meters, and 55-inch LCD TV is 4.5 to 5.5 meters. This is a size that can be selected according to the actual situation of your home.

5.HDMI interface:

HDMI interface is a digital interface that can transmit audio and video signals simultaneously. It can not only simplify the connection and reduce the connection burden, but also provide huge bandwidth for digital signal transmission. Home theater and other devices will actively adopt this interface, and the application of this interface to connect these devices will undoubtedly achieve the best results.

6. Disadvantages:

Be sure to carefully observe whether there are bright spots and dark spots on the screen before buying. You can find black spots when the screen is white, bright spots when it is black, black spots when it is all green and bright spots when it is all blue. Once there are bright spots or dark spots, it is very easy to see them.

Extended data

Pay attention to the false propaganda of TV parameters when buying TV;

1. Is there an HDMI interface?

HDMI interface is the only digital interface that can transmit audio and video signals simultaneously. It can not only simplify the connection and reduce your connection burden, but also provide huge bandwidth for digital signal transmission. Therefore, determining whether you need an HDMI interface before buying can reduce the chance of regret after buying.

2. Whether the actual resolution and publicity resolution are the same.

The actual resolution of LCD TV refers to the resolution that LCD TV can achieve. Generally, the resolution above 1280*768 should be selected. It should be noted that some manufacturers cheat consumers with compatible signal input, so we must distinguish the difference between actual resolution and compatible signal input.

3. Whether the visual angle of TV is consistent with the manufacturer's propaganda.

Manufacturers often exaggerate brightness and contrast. Generally speaking, products with brightness of 500 lumens and contrast of 600: 1 or above are good. Generally, the viewing angle of LCD panels is above 170. It is important to pay attention to whether the images on the left, right and center of the screen are clear and whether there is a big difference in brightness. Try to choose the product with the smallest difference.

Baidu encyclopedia-LCD TV