LG submitted a patent for a smartphone that features basic sketches of the device, outfitted with three rear cameras and three front-facing cameras. The patent was registered with the WIPO (World Intellectual Property Office) and went live on Friday. The device in the diagrams appears to have three cameras in the notch cluster above the phone. Each camera's function isn't explicitly described, but we could speculate that one has a standard lens, another - ultra-wide, and the third might be a ToF sensor. Maybe not in that particular order, but given the LG G8's inclusion of the ToF sensor,...
Source: https://www.gsmarena.com/lg_files_patent_for_smartphone_with_three_selfie_cameras-news-36668.php