Theres evidence that a number of companies might launch phones with under-display selfie cameras soon, and it now looks like Google could be among them. While we wouldnt expect this feature on the Google Pixel 6, a patent for such a system makes us a think it might be ready in time for the Pixel 7 or the rumored Pixel Fold.The patent spotted by LetsGoDigital is for a 'full-screen display with sub-display camera', but the system used is a bit different to what weve seen on patents from other companies, or on the ZTE Axon 20 5G, which has already launched with an under-display camera.In most cases, the selfie camera is positioned in a similar way to punch-hole selfie cameras, just with a tiny secondary display panel over the top, so it can be hidden when not in use. Here though, the selfie camera lens doesnt actually point towards you.Instead, the display has a little ‘window in it, with a mirror underneath. The selfie camera is to one side of that mirror, while a tiny secondary screen is at the other side.When the selfie camera is in use, the mirror allows the lens to collect the required light, and when its not, the mirror rotates and reflects content from the secondary screen onto the window in the main display. Its a complicated system to describe, but the images below may make it clearer.Image 1 of 2The mirror reflects images from the secondary screen when the camera isn't in use (Image credit: LetsGoDigital)Image 2 of 2The mirror flips to collect light for the lens when the camera is launched (Image credit: LetsGoDigital)Both the main and secondary screens are OLED panels with the same pixel density, so they should allow for a seamless viewing experience. Yet its not entirely clear what this complicated setup achieves. Perhaps it makes the selfie camera truly invisible something which the ZTE Axon 20 5G failed to do, but thats just speculation for now.Its worth noting that just because Google has patented this idea, it doesnt mean the company will ever use it in a phone. But it seems like under-display cameras could be one of the next big things in smartphones, so wed think its likely to.Given that weve seen leaked images of the Google Pixel 6 range with a visible selfie camera, its very unlikely that the feature will be included there, but as noted above we wouldnt be surprised if its used in the Pixel 7 or the Pixel Fold.