Xiaomi explains why.
The concept of the discussed solution solves one important problem. If producers manage to put smartphone front camera under the screen, you will not need to implement holes, notch or retractable modules. Of course, the users themselves will benefit, who will finally receive devices with a uniform screen without unnecessary oddities.
Xiaomi and OPPO already last year they presented "Under-Display" technology allowing you to hide the camera under the display.
How does the new technology work?
When taking a selfie, the screen area above the front camera becomes transparent, allowing light to enter the sensor. A special area of the display has "high transmittance" so that the bright light incident on the display does not hinder the image recording.
For those seeking the perfect, notchless smartphone screen experience – prepare to be amazed.
You are taking a very first look at our under-display selfie camera technology. RT! pic.twitter.com/FrqB6RiJaY
– OPPO (@oppo) June 3, 2019
So much theory. It turns out that in practice the technology is still not refined. The president of Xiaomi via the social networking site Weibo shared an interesting opinion, stating that the commercial implementation of such cameras is not yet possible. There are still major technological challenges to overcome.
Lu Weibing claims that the main limitation is too high pixel density of modern displays. High ratio screens PPI they simply have too "packed" pixels, which effectively blocks the delivery of the right amount of light to the camera. Finally, the quality of photos taken with the camera placed under the screen is not satisfactory and definitely differs from what classic selfie cams offer.
The declaration of the head of Xiaomi does not mean that finally we will not see this type of solution on smartphones of this brand. However, its commercial implementation may take much longer than originally expected.