Why does the smart TV watch the ball game?

It was found that the TV watching game at home had serious shortcomings. I believe many of my friends have this experience and it is still not clear what the customer service explained for a long time. If this is not a question of television quality, then what causes it? When we purchased the monitor, we often heard the response time parameter. In fact, TV also has this parameter, but manufacturers do not generally say, so do not know.

What is "response time"?

The liquid crystal television picture is realized through the change of the liquid crystal molecule, and it takes a certain time for the liquid crystal molecules to receive the signal and complete the change, and this time is called a “response time”. Response time is an important performance indicator for LCD TVs. The unit is usually ms (milliseconds). The strict definition is the speed at which each pixel of the LCD TV reacts to the input signal, that is, the time it takes for the pixel to turn dark or turn from bright to dark. Therefore, the response time of the LCD TV represents the reaction speed of the screen.


Response time is not equal to the refresh rate

Friends who have used old-fashioned CRT TVs or plasma TVs generally believe that the higher the refresh rate of the screen, the faster the response of the screen and the better performance of high-speed images. However, in the era of LCD, the principle of imaging has undergone a qualitative change. When the LCD screen displays a static image, it is no longer necessary to constantly emit electrons or plasma to refresh, as long as the liquid crystal molecules do not move without animation. Therefore, although the refresh rate is still important for the LCD screen, it does not represent the screen's response speed, nor can it determine the screen's ability to express high-speed images.

Response time is more sensitive to high-speed motion pictures

The severity of LCD TV smearing is generally measured by response time. The response time of LCD TVs is now less than 8ms, that is, at least 125 frames per second can be displayed, and the performance of high-speed images has already performed well. But for those friends who love watching sports games and playing video games, it is obviously not enough. The smearing still exists. It is recommended to buy TVs with 4ms or even higher response time.

Increase refresh rate double speed drive technology



The double speed drive technology optimizes the dynamic effects of LCD TVs through motion estimation and frame interpolation compensation methods. The so-called "double speed" is to increase the refresh frequency of the drive from 50Hz to 100Hz or 200Hz, and insert the operation between the original frames to obtain an "intermediate picture", thereby enhancing the performance of the television on the moving picture.

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