Display Adaptive Refresh Rate Technology Explained

Currently, there are many smartphones on the market that support the so-called “adaptive display refresh rate” function. For many of them, it is a selling point. But what are the benefits of this technology?

In order to understand what benefits it brings, let’s first get acquainted with the concepts of frame rate, refresh rate, and adaptive synchronization. The fps is the number of frames that appear or transmit per second (the content of each frame should be different). It often refers to the number of pictures of animation or video.

The Hz is the number of times the screen is refreshed per second. It often refers to the upper limit of the number of times the display or screen is refreshed.

How Does It Work?

The traditional display technology refreshes the screen at a constant rate, that is, the refresh rate is fixed. Thus, in different scenarios, it doesn’t change the refresh rate. This causes serious visual experience failures because, in high frame rate animations or heavy-loaded game scenes, the output frame rate does not match the constant display refresh rate.

To solve this problem, smartphone manufacturers developed adaptive synchronization technology. This technology does not refresh the display at a constant rate but matches the display refresh rate with the application scene.

Simply put, it allows the screen to quickly adapt to the user’s current usage scenario, adjust the display refresh rate to the state that best matches the current content frame rate, and improve the experience. In effect, it not only provides users with a better visual experience but also saves a lot of energy.

Currently, many teams are working on adding more scenarios into the bag. That is, the more scenarios that can be adapted for terminal applications, the better the balance between power consumption and performance can be.

adaptive refresh rate

What’s more important, the adaptive refresh rate technology is applied to mobile games. So they can achieve high-precision dynamic synchronization of software and hardware.

In traditional PC gaming, adaptive synchronization technology mainly includes G-SYNC developed by NVIDIA, Free-Sync developed by AMD, and Adaptive-Sync developed by VESA. Thus, this is not a mobile feature only. However, currently, basically, mobile devices adopt this technology because they rely on battery performance more.

In recent years, mobile terminals have gradually adopted adaptive refresh rate technology. But the terminal itself needs to adapt to the processing and presentation of content. At the same time, the performance configuration and system of different mobile terminals are different as well. So they also need to be adapted to video games.

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