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Daily Tech Update > Blog > News > Xiaomi Mi 12 Pro Has Two Core Technologies: Xiaomi Detailed
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Xiaomi Mi 12 Pro Has Two Core Technologies: Xiaomi Detailed

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Last updated: 2022/01/18 at 4:54 PM
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Earlier today, Xiaomi’s Weibo channel officially introduced two exclusive core technologies of the Xiaomi Mi 12 Pro: sliding speed screen and natural eye protection mode.

Contents
Sliding Speed ScreenNatural eye protection mode

Sliding Speed Screen

The Xiaomi Mi 12 Pro uses the second-generation LTPO screen with a refresh rate of 120Hz and a resolution of 2K+. The company said that the LTPO material allows the screen to actively reduce the refresh rate when needed to save power consumption. Indeed, this is a hardware capability, but it also requires software cooperation. So the company developed the Xiaomi Smart Dynamic Refresh Rate Technology.

Xiaomi Mi 12 Pro

Ideally, when swiping, the optimal refresh rate would be to set Displacement/Frames to a constant value, i.e. the farther the swipe is, the more frames are needed.

In actual situations, the sliding speed change of Xiaomi Mi 12 Pro will increase the frame rate to 120Hz at the moment when the user’s finger touches the screen, and gradually reduce the refresh rate as the sliding speed decreases. It will reach a 10Hz refresh rate until the sliding stops.

It is worth noting that the Xiaomi Mi 12 Pro is the only model in the Android camp that has the ability to slide down slowly.

In order to achieve such a function, Xiaomi needs to refactor the ScrollView and ListView in the Android native controls to increase the ability to judge the sliding speed.

In this process, you need to grasp the node that switches the frame rate. If you intervene too early, it will cause visual freezes; if you intervene too late, it will not save power.

“After researching user behavior, we know that some scenarios do not require a very high refresh rate, such as low frame rate animation, low frame rate video, and input methods. When the system detects these scenarios, it can actively reduce the screen refresh rate to save power.”

In browsing and reading scenarios, usually, users do not touch the screen. So we can reduce the refresh rate to 10Hz or even 1Hz to greatly save power consumption.

Natural eye protection mode

The Xiaomi Mi 12 series comes with a more intelligent screen eye protection mode, which no longer adopts a “one size fits all” approach but makes different adjustments for different colors.

Taking the CIE color space as an example, the color with the bluest light components is the area between pure blue (0, 0, 255) and pure white (255, 255, 255). Although other colors also have blue light components, the proportion is low.

Therefore, Xiaomi needs to treat different colors differently so that most harmful blue light can be reduced without affecting the hue of other colors. This is the natural eye protection mode of the Xiaomi Mi 12 series.

At the same time, the Xiaomi Mi 12 series retains traditional features such as primary color screen, Dolby Vision, and 10,000-level dimming, supports HDR video with a peak value of over 1000nit, and has passed the DisplayMate A+ certification. It is the best mobile phone screen in the history of Xiaomi so far.

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TAGGED: Xiaomi Mi 12 Pro, Xiaomi Mi 12 Pro innovations, Xiaomi Mi 12 Pro screen

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