Fingerprint identification device and fingerprint identification panel

Abstract

The invention provides a fingerprint identification device and a fingerprint identification panel, relates to fingerprint identification technology, and can solve the problem that the existing optical fingerprint module requires high screen thickness. The present invention includes: a pressure change layer, a sensor receiving layer and a fingerprint identification module; wherein, the pressure change layer is made of an elastic and conductive material; the sensor receiving layer is arranged opposite to the pressure change layer and There is a pressure change gap between the sensing receiving layer and the pressure changeable layer, and the pressure change gap is used to accommodate the deformation of the pressure changeable layer toward the sensing receiving layer when pressed; The sensing receiving layer and the pressure changing layer are electrically connected to the fingerprint recognition module, and the fingerprint recognition module is used to determine the distance between the sensing receiving layer and the pressure changing layer according to the deformation of the pressure changing layer when the pressure changing layer is pressed. electric field distribution.

Description

technical field [0001] The invention relates to fingerprint identification technology, in particular to a fingerprint identification device and a fingerprint identification panel. Background technique [0002] At present, in order to protect the information security of users, the use of fingerprint recognition functions on smart terminals such as mobile phones is becoming more and more common, such as for unlocking smart terminals and mobile payment, etc., which not only protects the security of user information, but also brings users Great convenience. [0003] In the prior art, by setting an optical fingerprint module on the back of the smart terminal screen, that is, on the surface facing away from the user, the light emitted by the organic light-emitting unit in the screen is reflected by the different energies of the peaks and troughs of the fingerprint, and is captured by the screen. The optical fingerprint module on the back of the body receives it, and through the e...

AI Technical Summary

Problems solved by technology

[0004] However, since the light intensity emitted by the organic light-emitting unit in the screen itself has certain limitations, the thickness that the light emitted by the organic light-emitting unit can penetrate is generally small, so the requirement for the thickness of the screen is relatively high, and the optical fingerprint recognition The setting also affects the pixel distribution in the screen, which is not conducive to realizing the high resolution of the screen

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