The first company with a fingerprint scanner under the display was vivo with the X20 Plus UD, swiftly followed by the Huawei Mate RS Porsche Design. Oppo is expected to be the next Chinese manufacturer to jump on the bandwagon after receiving a patent for the technology from the State Intellectual Property Office of China (SIPO).
The documents were coupled with plenty of images that reveal the scanner might be used not only for unlocking the device but also for authorizing payments.
Images from the patent documents
The patent images show the sequence of entering your…