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Utilizing the phone screen to recognize a user's fingerprint is not particularly difficult, as many manufacturers' screens have this feature. However, the challenging part is how to integrate a surveillance camera into the phone screen itself. As smartphones have increasingly moved towards full-screen displays, the presence of front-facing cameras has been a persistent obstacle in achieving truly full-screen technology. In the end, manufacturers often resorted to compromise, creating the awkwardly shaped notched display.
Since Apple pioneered the notched screen, other manufacturers rushed to follow suit, led to a market where virtually every phone featured a notch, resulting in designs that many found hideously unattractive and obliterated any desire to purchase. To overcome this aesthetic challenge, major phone manufacturers attempted to master the technology of embedding cameras beneath the display screen, regretfully without success.
