According to netizens’ feedback, Xiaomi Mi 8 received the MIUI 10 9.5.22 experience version update, adding DC dimming. Xiaomi’s new DC dimming solution uses a fixed brightness mode switching node which integrates Xiaomi’s self-developing algorithm to add a “true hardware” DC dimming solution in the driver IC of the OLED screen. Xiaomi Mi 8 can now get this update which brings just DC dimming and weighs 324MB.
Update log:
- Added anti-flicker mode, global DC dimming – go to Settings – Display – put on Anti-Flicker.
According to Xiaomi product director, Wang Teng, there are currently three DC dimming hardware solutions:
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1. Fix the screen dimming level to the brightness mode switching node to ensure that the screen PWM dimming mechanism is not triggered. Then use the Qualcomm platform’s pcc+dither scheme to compress the color data output to the screen while ensuring the screen display effect remains stable. The gray scale value achieves the effect of reducing the brightness.
2. Fix the screen dimming level to the brightness mode switching node to ensure that the screen PWM dimming mechanism is not triggered. Then modify the alpha channel in the HWC hardware module, by adding a mask +dither solution with adjustable transparency, compressing the color grayscale value output to the screen to reduce the brightness of the screen
3. Fix the screen dimming level to the brightness mode switching node to ensure that the screen PWM dimming mechanism is not triggered. A third-party display chip is used while ensuring that the display effect is stable.
