The first design patent is that four front cameras are distributed at four corners of the screen, while the second and third designs are that the front cameras are located at the left and right corners above the screen. The difference is that the camera in the third scheme is independent.
It should be noted that this only illustrates a possibility of full-screen form, and there is a high probability that there will be no mass production of related models.
However, it is worth mentioning that screen digging will be the screen trend in 2020. Since the end of this year, many models have adopted the hole-digging screen scheme, such as vivo X30 series, vivo S5, OPPO Reno3 Pro and so on.