Since early June, Oppo has been boasting of a smartphone with an invisible front camera. After much hype and anticipation, the technology has finally been unveiled and a prototype device with the visionary feature is currently on display at MWC Shanghai. 

As the name suggests, an under display camera or invisible camera stays hidden from the human eye as it is covered by a display on the top that has operational light pixels above which conceals the photosensor. The technology was previously conceptualised by Samsung suggests this patent. Although, the Korean Giant is yet to reveal details about the technology.

The successful development of an under display [...]