Among the main peculiarities of the Xiaomi Mi Mix 4 we find its selfie camera under the screen. A technology that we have been waiting for years and that Xiaomi has wanted to talk about, explaining to us in detail how he has managed to implement it.
Thanks to this technology, the Xiaomi Mi Mix 4 becomes the first Xiaomi smartphone to truly be an “all screen”, thereby achieving a truly spectacular front without any kind of distraction in the form of notches, perforations and without the need to resort to a retractable system.
This is how the selfie camera works under the Xiaomi Mi Mix 4 screen
To make the Xiaomi Mi Mix 4 selfie camera “invisible”, the company has used a flexible CUP-type OLED panel. This, although it has conventional characteristics on practically its entire surface, the exact area under which the selfie camera is located has a different function.
In detail, the OLED panel of the Xiaomi Mi Mix 4 has a small semitransparent circle where various pixels capable of reorganization have been located. By moving these, the light flows into the interior of the panel, in turn reaching the camera lens located under it.
Besides, andThese pixels lack TFT circuitry and have a much lower RGB ratio than the rest, thereby guaranteeing the entry of as much light as possible. To all this are added different image processing algorithms capable of correcting the colors, brightness and contrast of the resulting photograph.
In summary, the Xiaomi Mi Mix 4 has a panel on the top of which is located a small semi-transparent circle. This one, when we activate the selfie camera, rearrange its pixels separating them from each other, all this in order to make the camera itself visible. In turn, since it is impossible to avoid diffraction, MIUI applies different algorithms in order to correct the colors in the photograph.