According to recent rumors, it has been hinted that the iPhone will be a very extraordinary device. It is expected that there will be no bezel display, a full glass case, and no home button. Instead, it is all expected that the glass touch ID may reside beneath a glass. Hmc Machining Center,5 Axis Horizontal Machining Center,Vertical And Horizontal Machining Center,Horizontal Machining Center Dongguan Liyang Intelligent Technology Co., Ltd , https://www.leyomachine.com
This sounds a bit far-fetched, but given that this information comes from the well-connected Apple blogger John Gruber, it may also be true. Based on the fact that Apple's patent confirms the rumor of a touch ID, it seems to indicate how it is possible to place the touch ID under the display of the device.
According to this one, it shows that there are three different ways to identify users. This is done through optical, capacitive and ultrasound (which will be similar to Qualcomm's Sense ID). With optics is easily "covered with gum," which is basically duplicating fraud with substances such as gum. It is said that ultrasound may be the most accurate form, but so far it has not really been in the real world, as it seems that no smartphone manufacturer has adopted this technology for testing.
Of course, this is a patent that does not guarantee that Apple will make it a reality and that Apple may potentially lay it off.