Oppo is the first to demonstrate an under-screen camera to the public at MWC Shanghai this week. Oppo has revealed more information about how the technology actually works. Oppo says the display uses a custom transparent material that works with a redesigned pixel structure so that light can get through to the camera. The sensor itself is said to be larger than other selfie cameras, with a wider aperture lens in front. The area of the screen reserved for the camera still works with touch control, and Oppo says display quality won’t be compromised.