Is 120Hz really better than 60Hz? projector MEMC motion compensation

Nike Kidman

Member
Recently, new mobile phones have been released one after another, and the 120Hz high refresh rate screen has become hot. However, the most remarkable technical highlight in 2020 is actually another term-MEMC motion compensation. This concept has just emerged in mobile phones, but it has long been used in projectors and TVs. Is projector motion compensation a gimmick? Is projector motion compensation necessary? In fact, we can get a glimpse of mobile phone manufacturers such as OPPO and OnePlus who decided to add this feature to their new products.

Is 120Hz really better than 60Hz? projector MEMC motion compensation

The full name of motion compensation technology is Motion Estimate and Motion Compensation, or MEMC. This video processing technology mainly inserts a compensation frame between two frames through a dynamic image system, so that the dynamic picture looks more smooth and natural. For video content, a frame rate of 24 can make people feel smooth playback, but when playing games , this data must reach at least 60 to make people feel comfortable. The difference is that the frameless pictures of the game are still, and the shooting pictures of movies and television series and other content are continuous. The dynamic and blurry pictures will let people instinctively judge the travel path and direction of the object based on experience. So when we watch the dynamic picture of 24 frame rate, we will not feel a sense of lag, but the game picture of 24 frame rate will make people feel seriously fluent. In general, the more frames a video has in a second, the smoother and smoother the look and feel.


Is 120Hz really better than 60Hz? projector MEMC motion compensation

What is the need for dynamic compensation? Taking a mobile phone as an example, a mobile phone with 120Hz should theoretically be smoother than 60Hz. However, when you actually use it, you will find an embarrassing phenomenon-the mobile phone system looks smooth, but open youtube seems to be inferior to 60Hz.

Why is 120Hz not as good as 60Hz?

This is because of the lack of dynamic compensation. The system UI and built-in files can show a silky and smooth visual experience at a high frame rate, but when it is used as a simple display device, it cannot process the third-party video played. Even if the device supports a high refresh rate like 120Hz, the actual When watching it, the effect is not good. As a must-have device for most people, the use of MEMC technology will undoubtedly greatly improve the user experience. Whether a projector with audio-visual entertainment as its core function has MEMC technology is an important reference standard for judging the grade of the projector.
 
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