Huawei’s Under-Screen Camera Surface Online Huawei’s idea has innovatively added a secondary screen to the top frame of the phone. It should display information such as phone signal, time, and power.   the past few years, we have seen various approaches for achieving a full-screen design. From the first notch screens to the current hole-punch screens, they all are not true full-screen smartphones. We could give this title to the ZTE Axon 20 but its under-screen camera technology has some bugs. Anyways, we also know that Xiaomi and other manufacturers have been working on their own under-screen camera technologies. And most…